CN1956499A - Focus state display device and method - Google Patents
Focus state display device and method Download PDFInfo
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- CN1956499A CN1956499A CN 200610143351 CN200610143351A CN1956499A CN 1956499 A CN1956499 A CN 1956499A CN 200610143351 CN200610143351 CN 200610143351 CN 200610143351 A CN200610143351 A CN 200610143351A CN 1956499 A CN1956499 A CN 1956499A
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Abstract
A focus state display apparatus comprises focus area extraction means for extracting the image signals of a predetermined area from photographed image signals, edge enhancement processing means for enhancing the edge of the extracted image signals, time integration value calculation means for calculating an integration value of the edge-enhanced image signals in a certain period of time, focus state determination means for determining the focus state of the photographed image signals on the basis of the calculated integration value, and focus state display means for displaying the determined focus state. A user is capable of readily determining the focus state of a camera and confirming and adjusting the focus thereof with accuracy even in a display apparatus of a camera-equipped portable terminal device, where the size and resolution thereof are limited.
Description
The application is that application number is dividing an application of 200480009167.9 patent application.
Technical field
The present invention relates to a kind of equipment and display packing thereof that is used to show the focus condition of camera, relate in particular to and a kind ofly be used for showing the small portable camera and in the technology of the focus condition of the fixed focus camera of mobile terminal device (such as the portable phone that the is equipped with imaging function) setting that is equipped with camera.
Background technology
In recent years,, have the mancarried device of built-in camera, be extensive use of such as PDA (personal digital assistant), portable phone and portable PC (PC) along with the development of volume imageing sensor little, low in energy consumption.
These mancarried devices for example can utilize that the camera such as the camera of in-built CCD comes photographic images and printing material, record the note replacing.They also can be stored in this image being shot in the mancarried device, and with the internet image being shot are sent to other mancarried device and PC by the e-mail function of mancarried device.
The camera that is installed in this mancarried device is made small and light as much as possible.In general, use resolution be lower than normal digital camera resolution, i.e. the camera of about 100,000 to 30 universal effect pixels.
The camera that is installed in the mobile terminal device also has strict restriction on body size and cost, therefore in general, autofocus is not installed.When the user used such built-in camera photographic images, the image in the coverage of built-in camera was displayed on the display screen, on the LCD that for example is provided with in mobile terminal device (LCD).Like this, just might regulate focus when confirming display screen takes.
In order when taking, to regulate focus,, also can show focus condition and focus on that the while, the user confirmed the demonstration and the display screen of focus condition when confirming display screen by mobile terminal device although the user can focus on as described above.Mobile terminal device can comprise the function that shows focus condition according to the signal component of the image that utilizes built-in camera to receive.
A kind of imaging device of describing in patent document 1 (Japan Patent open (Kokai) number 3-11884A (1991)) relates to a kind of imaging device such as the video camera with view finder and focal point control device.This equipment comprises a focus condition display device, is used for showing focus condition when the manual focusing according to the ratio of the high fdrequency component of picture signal being shot and low frequency component.
Focus condition display device and the microscope device described in patent document 2 (Japan Patent open (Kokai) number 2002-196225A) comprise a focus condition display device, the high fdrequency component of the spatial frequency of view data is extracted by it, to generate difference image data, painted is that the pixel value of the high fdrequency component of data as indicated changes, and utilizes aberration to notify focus condition.
Disclosure of the Invention
The display device volume such as LCD that is provided with in the mobile terminal device of such outfit camera is little and pixel is few, so the image that shows is coarse.Therefore, when for example with the naked eye determining a fuzzy photographs, be difficult to focus on.Even provide as at the focus condition display device described in patent document 1 (Japan Patent open (Kokai) number 3-11884A (1991)) and the patent document 2 (Japan Patent open (Kokai) number 2002-196225A), the user also is difficult to understand shown focus condition, and is difficult to regulate focus sometimes.
In view of these problems, made the present invention.The purpose of this invention is to provide a kind of focus condition display device and a kind of focus condition display packing, it allows the user easily to determine the focus condition of camera, even and in the display device of the mobile terminal device of its size and all restricted outfit camera of resolution, also can accurately confirm and regulate focus.
The invention provides a kind of focus condition display device, it comprises: focus region extraction means is used for from the picture signal of a presumptive area of picture signal extraction being shot; Edge enhancement process device is used to strengthen the edge of the picture signal of extracting; The time integral value calculation apparatus is used for the integrated value of picture signal during the regular hour that edge calculation strengthens; Focus condition is determined device, is used for determining according to the integrated value of being calculated the focus condition of picture signal being shot; And the focus condition display unit, be used to show determined focus condition.
The present invention also provides a kind of focus condition display device, and it comprises: focus region extraction means is used for from the picture signal in the certain zone of picture signal extraction being shot; Edge enhancement process device is used to strengthen the edge of the picture signal of extracting; The histogram preparation device is used to prepare the histogram of the picture signal that the edge strengthens; The variance yields calculation element is used for calculating the histogram of being prepared and is not less than the variance yields of the picture signal of certain threshold value about those; The time integral value calculation apparatus is used to calculate the integrated value of variance yields during the regular hour of the picture signal of being calculated; Focus condition is determined device, is used for determining according to the integrated value of being calculated the focus condition of picture signal being shot; And the focus condition display unit, be used to show determined focus condition.
In focus condition display device of the present invention, the focus condition display unit is characterised in that it shows in mode quantitatively or qualitatively.In this case, quantitatively show the size that comprises the value that is presented at the focus condition that calculates in the focus condition display device, wherein, along with this value becomes big, focus is regulated more accurately.In addition, qualitative demonstration comprises that the size according to the value of aforesaid focus condition changes the form that shows.
This various forms that makes it possible to understand easily with the user shows focus condition.The user can regulate the focus of photographs in the demonstration of watching focus condition, move and the operation imaging device.
In focus condition display device of the present invention, the example of the quantitative demonstration of the focus condition by the focus condition display unit comprises the form that shows the focus condition of picture signal being shot with number of bar chart, level meter, digital value, graphic form or the like.
In addition, when the quantitative demonstration of carrying out aforesaid focus condition, preferably show from shooting to begin to the maximum of the focus condition of the picture signal being shot of current time together with the current focus state.
By contrast, in focus condition display device of the present invention, the example of the qualitative demonstration of the focus condition by the focus condition display unit comprises following form.
A kind of form of this focus condition display device further comprises light-emitting device, and wherein, the focus condition display unit is by making light-emitting device flicker or the luminous focus condition that shows picture signal being shot.
A kind of form of this focus condition display device further comprises and is used to sound or the sound-producing device of voice, and wherein the focus condition display unit is by making sound-producing device and sound or voice showing the focus condition of picture signal being shot.
A kind of form of this focus condition display device further comprises filter, be used to remove the high fdrequency component of the spatial frequency composition of picture signal being shot, wherein the focus condition display unit is revised the scope of the spatial frequency component that will remove by filter from picture signal according to the focus condition of picture signal being shot.
A kind of form is that the focus condition display unit utilizes the color of display image, density of character display or the like to show the focus condition of picture signal being shot.
In addition, the invention provides a kind of camera, it comprises the imaging device that is used for photographic images, is used to show the image display device of the image of taking by imaging device and any one of aforementioned focus condition display device that the present invention also provides the mobile terminal device with this camera.
The present invention also provides a kind of focus condition display packing, and this method may further comprise the steps: the picture signal of extracting a presumptive area from picture signal being shot; Strengthen the edge of the picture signal of extracting; The integrated value of picture signal during the regular hour that edge calculation strengthens; Determine the focus condition of picture signal being shot according to the integrated value of being calculated; And show determined focus condition.
The present invention also provides a kind of focus condition display packing, and this method may further comprise the steps: the picture signal of extracting some zones from picture signal being shot; Strengthen the edge of the picture signal of extracting; Prepare the histogram of the picture signal of edge enhancing; Calculate in the histogram of being prepared and be not less than the variance yields of the picture signal of certain threshold value about those; Calculate the integrated value of variance yields during the regular hour of the picture signal of being calculated; Determine the focus condition of picture signal being shot according to the integrated value of being calculated; And show determined focus condition.
The present invention also provides a kind of program, and this program may further comprise the steps: the picture signal of extracting a presumptive area from picture signal being shot; Strengthen the edge of the picture signal of extracting; The integrated value of picture signal during the regular hour that edge calculation strengthens; Determine the focus condition of picture signal being shot according to the integrated value of being calculated; And show determined focus condition.
The present invention also provides a kind of program, and this program may further comprise the steps: the picture signal of extracting some zones from picture signal being shot; Strengthen the edge of the picture signal of extracting; Prepare the histogram of the picture signal of edge enhancing; Calculate in the histogram of being prepared and be not less than the variance yields of the picture signal of certain threshold value about those; Calculate the integrated value of variance yields during the regular hour of the picture signal of being calculated; Determine the focus condition of picture signal being shot according to the integrated value of being calculated; And show determined focus condition.
The present invention further provides a kind of recording medium, wherein write down any one of aforementioned program.
In addition, the invention provides a kind of focus condition and determine equipment, it comprises: edge detecting device is used to detect the edge of picture signal being shot; The time integral value calculation apparatus is used to calculate the integrated value of difference during the regular hour of adjacent image signal, and by means of edge detecting device, the edge that is detected constitutes the border; And focus condition determines device, is used for determining according to the integrated value of being calculated by the time integral value calculation apparatus focus condition of picture signal being shot.
Determine equipment according to this focus condition, might easily only determine focus condition by the difference of picture signal is carried out time integral, the difference of described picture signal is such as being the luminance difference that constitutes an adjacent area on border with the edge that is detected.Especially, be in the situation of character code at reference object, few of necessity is carried out the edge and is strengthened, and therefore only just can determine focus condition by aforesaid rim detection.
In addition, provide a kind of focus condition to determine equipment, it comprises: the histogram preparation device is used to prepare the histogram of picture signal being shot; The variance yields calculation element is used for calculating the histogram of being prepared and is not less than the variance yields of the picture signal of certain threshold value about those; And focus condition determines device, is used for determining according to the variance yields of the picture signal of being calculated the focus condition of picture signal being shot.
Determine equipment according to aforesaid focus condition, have only in the histogram those signals that are not less than some threshold values just to be used to focus and determine.Therefore, the edge that generates owing to hand activity of high-frequency noise, user or the like can be removed, and their influence can be controlled.
Provide a kind of focus condition to determine equipment, it has: focus condition is determined device, be used for being transformed under the situation of OCR functional mode at the reference object conversion equipment that can between mode standard and OCR functional mode, change, determine the focus condition of character or bar code, wherein said mode standard is handled the general pattern as reference object, and described OCR functional mode is handled character or the bar code as reference object; And a control section, be used to control so that it starts the code recognition device that is used to discern character being shot or bar code.This equipment can be constructed such that it automatically starts when reference object is converted.In addition, this equipment can also have and is used for determining that reference object is definite device of general pattern, character or bar code.
The present invention has considered to be provided with the focus condition display unit in the focus condition display device, this focus condition display unit is determined the focus condition of picture signal being shot, and carries out easily demonstration visual or acoustics for the user understood according to determined focus condition.
Describe embodiments of the invention in detail below with reference to accompanying drawing.
Fig. 1 to 13 expression is according to the example of focus condition display device of the present invention and focus condition display packing.The identical element of part representative that has same tag in the accompanying drawing, and their essential structure is identical.
The accompanying drawing summary
Fig. 1 shows the outward appearance as the mobile terminal device of the outfit camera that comprises the focus condition display device of first embodiment of the invention.
Fig. 2 Presentation Function block diagram, it is illustrated in the formation of the focus condition display device that is provided with in the portable phone 10 shown in Fig. 1.
Fig. 3 schematically focal zone shown in the displayed map 2 extracts the focal zone of the image in the part 21 and the setting of extraction.
Fig. 4 demonstration is used for the example in the space difference operator of the edge enhancement process of the picture signal of the edge enhancement process part 22 shown in Fig. 2.
Fig. 5 shows a kind of form, and wherein focus condition is displayed on the LCD display part 115 and 116 according to the portable phone 10 of first embodiment of the invention, and wherein the value of focus condition shows with bar chart.
Fig. 6 shows a kind of form, and wherein focus condition is displayed on the LCD display part 115 and 116 according to the portable phone 10 of first embodiment of the invention, and wherein the value of focus condition shows with level meter.
Fig. 7 shows a kind of form, and wherein focus condition is displayed on the LCD display part 115 and 116 according to the portable phone 10 of first embodiment of the invention, and wherein the value of focus condition shows with digital value.
Fig. 8 shows a kind of form, and wherein focus condition is displayed on the LCD display part 115 and 116 according to the portable phone 10 of first embodiment of the invention, and wherein the value of focus condition is that graphic form with predetermined quantity shows.
Fig. 9 shows a kind of form, and wherein focus condition is displayed on the LCD display part 115 and 116 according to the portable phone 10 of first embodiment of the invention, and wherein the value of focus condition is that piece with Show Color shows.
Figure 10 shows the example of the formation of the color table that is used for the relation between record color block 91 of the display format shown in Fig. 9 and focus condition value.
Figure 11 shows a kind of form, and wherein focus condition is displayed on the LCD display part 115 and 116 according to the portable phone 10 of first embodiment of the invention, and wherein the value of focus condition is that density with shown character shows.
The formation of the focus condition display device that Figure 12 Presentation Function block diagram, its expression are provided with in being equipped with the mancarried device of camera as fourth embodiment of the invention.
Figure 13 shows a figure, the histogram about the relation between edge brightness and the frequency that this diagrammatic representation generates with respect to the value of the viewdata signal that will be strengthened by the edge in the histogram processing section 23 of Fig. 2.
Figure 14 shows the functional block diagram according to the example of the signal formation of the portable phone of embodiments of the invention.
Figure 15 schematically shows the example of formation of the lens depth of focus switching mechanism of camera 112, and its expression is used for the example of the depth of focus switching mechanism of normal photographing and OCR functional mode.
Figure 16 shows a flow chart, and this flow chart description is according to flow process in the portable phone of the outfit camera that comprises the focus condition display device of fifth embodiment of the invention, that focus on the processing of OCR function.
Figure 17 shows a flow chart, and this flow chart description is according to flow process in the portable phone of the outfit camera that comprises the focus condition display device of fifth embodiment of the invention, that focus on the processing of OCR function.
Figure 18 shows a flow chart, and this flow chart description is according to flow process in the portable phone of the outfit camera that comprises the focus condition display device of fifth embodiment of the invention, that focus on the processing of OCR function.
Figure 19 shows a flow chart, and this flow chart description is according to flow process in the portable phone of the outfit camera that comprises the focus condition display device of fifth embodiment of the invention, that focus on the processing of OCR function.
Figure 20 shows a flow chart, and this flow chart description is according to flow process in the portable phone of the outfit camera that comprises the focus condition display device of fifth embodiment of the invention, that focus on the processing of OCR function.
Figure 21 is presented in the flow process according to the processing in the portable phone of the outfit camera that comprises the focus condition display device of fifth embodiment of the invention, shown content on the display unit.
Figure 22 is presented in the flow process according to the processing in the portable phone of the outfit camera that comprises the focus condition display device of fifth embodiment of the invention, shown content on the display unit.
Figure 23 is presented in the flow process according to the processing in the portable phone of the outfit camera that comprises the focus condition display device of fifth embodiment of the invention, shown content on the display unit.
Figure 24 is presented in the flow process according to the processing in the portable phone of the outfit camera that comprises the focus condition display device of fifth embodiment of the invention, shown content on the display unit.
Figure 25 is presented in the flow process according to the processing in the portable phone of the outfit camera that comprises the focus condition display device of fifth embodiment of the invention, shown content on the display unit.
Figure 26 is presented in the flow process according to the processing in the portable phone of the outfit camera that comprises the focus condition display device of fifth embodiment of the invention, shown content on the display unit.
Figure 27 is presented in the flow process according to the processing in the portable phone of the outfit camera that comprises the focus condition display device of fifth embodiment of the invention, shown content on the display unit.
Figure 28 is presented in the flow process according to the processing in the portable phone of the outfit camera that comprises the focus condition display device of fifth embodiment of the invention, shown content on the display unit.
Figure 29 is presented in the flow process according to the processing in the portable phone of the outfit camera that comprises the focus condition display device of fifth embodiment of the invention, shown content on the display unit.
Figure 30 is presented in the flow process according to the processing in the portable phone of the outfit camera that comprises the focus condition display device of fifth embodiment of the invention, shown content on the display unit.
Figure 31 is presented in the flow process according to the processing in the portable phone of the outfit camera that comprises the focus condition display device of fifth embodiment of the invention, shown content on the display unit.
Figure 32 illustrative ground shows a kind of mode, wherein utilizes according to the portable phone of outfit camera of the present invention and takes the URL that for example is imprinted on the business card.
Implement best mode of the present invention
First embodiment
The first embodiment of the present invention is a portable phone/PHS (personal handyphone system) (in order to simplify description, hereafter is " portable phone ") who comprises the outfit camera of focus condition display device.Fig. 1 shows the outward appearance of the portable phone of the outfit camera that comprises the focus condition display device.Fig. 1 (A) shows the rearview of the portable phone of present embodiment, and Fig. 1 (B) shows its front view.Figure 14 shows a functional block diagram, and its expression is according to the example of the signal formation of the portable phone of present embodiment.
In Fig. 1, the portable phone 10 that is equipped with camera comprises that a body part 10a and one are used to carry out antenna for radio communication 111.The back side of body part 10a comprises the camera 112 (imaging device) that is used for photographic images, be used for by flicker or the luminous LED (light-emitting diode) 113 (light-emitting device) that notify focus condition, be used to utilize the loud speaker 114 (sound-producing device) of sound or verbal announcement focus condition and be used to show little LCD (LCD) display part 116 (display unit) that a son shields.
The front of body part 10a also comprises the LCD display part 115 (display unit) that is used to show a main screen, the power key 117 that is used for the ON/OFF power supply, be used to operate Inbound Calls, outbound calling, telephony feature is switched, the telephony feature key of determining or the like 118 of performance, be used to switch the mode key 119 of various functions, the cursor key 120 that is used for mobile alternative on direction up and down, being used for determining will be from the shutter key 121 of the shooting of the image of camera input, be used to dial such as the dial key that comprises Thin-film key 122 of the telephone number of input, being used for voice amplifies with the loud speaker 123 of calling out reception and the microphone 124 that is used to import voice.
In this example, camera 112 is the small and light cameras that will be set in the mancarried device.For example, this camera can be CCD (charge coupled device, a kind of area type solid state image pickup device) camera of one 300,000 pixel.
In addition, LCD display part 115 and 116 is to use the device such as LCD display to constitute, described LCD display has lattice structure, as PDP backlight (plasma display panel) and organic EL (electroluminescence), and as the various drivers of the interface between the built-in system of these devices and portable phone 10.
When operation during portable phone 10, guiding, reception information, image, text message, icon that is used to carry out various operations or the like is displayed on LCD display part 115 and 116.
When taking with camera 112, focus condition is displayed on LCD display part 115 and 116 with the image from camera 112 inputs.When the user regulates the position of camera 112, can recognize the reference object that thereupon changes.When focus was conditioned, its information was displayed on LCD display part 115 and 116, and by through loud speaker 114 or be used for that loud speaker 123 that voice amplify generates predetermined sound and to user notification.
In portable phone of the present invention, the controlled notice of the demonstration of aforesaid focus condition and focus, can be by LCD display part 115 and 116, LED 113, loud speaker 114 or any one or its combination of being used for loud speaker 123 that voice amplify carry out.
As shown in Figure 14, portable phone 10 according to present embodiment comprises: CPU (control section) 231, be used to control entire equipment and (comprise the shooting process conversion equipment, the recognition device (OCR function) that is used for character, sign indicating number etc., information processor, the frame rate control device, timer setting device or the like); Memory 232, comprise semiconductor memory, such as the ROM that is used for storage control program, fixed data or the like, and as the RAM of memory block of the operation that is used for CPU, and hard disk drive, character information, image information and voice signal this memory stores reception or input.Portable phone 10 further comprises: camera 112 (imaging device) is used to import the image information as object handles; Lamp 234 (light-emitting device) is used for when imaging luminous by user's operation; LCD display part 115 (display unit, the part of output (notice) device) is used for to user's character display information and image information; Key input part 122 is used to import and generate the key operation information from the user; Antenna 111 is used to transmit and receive radio wave; Radio part 238 is used to control transmitting and receiving of radio communication; Loud speaker 114 (part of output (notice) device) is used to export voice signal; And microphone 124, be used for input from the user's voice signal.
The whole portable phone 10 of control section 231 controls, and the OCR function is also arranged.Control section utilizes camera 112 to take for example character, and displays image information is discerned for example character, and handles according to institute's content identified according to key operation.
Especially, control section 231 has the shooting process conversion equipment, be used for when for example taking natural image and when under the OCR functional mode of taking character, bar code or the like, taking between, change at least a portion for character recognition (OCR), the purpose of catching or the like and handle.Control section 231 further has the OCR function that is used for identification character, bar code etc. when processing is switched to the OCR functional mode, be used to notify the result's that the user discerned through the OCR function notifying device, and as being used for according to the function of carrying out the information processor of predetermined process through OCR function institute content identified.
In addition, control section 231 has the function as the frame rate control device, by this function, when processing is switched to the OCR functional mode, control section 115 shows an image with the fast frame rate that can obtain in the display part from camera 112, is activated up to the OCR function, and after the OCR function is activated, this image is taken, and shows with the necessary frame rate of this OCR function.
ROM is a kind of read-only semiconductor memory, is used to store fixed data, such as necessary program and communication control data when control section 231 is operated.RAM is used as so-called working storage, is used for temporary about bar code recognition and the data of communicating by letter, the data that are used to calculate, result of calculation or the like.The program that will handle in portable phone 10 is unfolded in RAM, is performed then.
Figure 15 schematically shows the example of formation of the lens depth of focus switching mechanism of camera 112, and its expression is used for the example of the depth of focus switching mechanism of normal photographing and OCR functional mode.As shown in Figure 15, the switching mechanism of lens depth of focus comprises: a camera model 250, and it has a solid imaging element and a signal output apparatus thereof such as CCD; One for example is installed in lens unit 252 on the camera model 250 with screw, and lens unit portion within it has lens 251; And being installed in camera joystick 253 on lens unit 252 peripheries, camera joystick 253 rotates lens units 252.Lens unit 252 is installed on the camera model 250 with screw.When the handle 253a of camera joystick 253 A ← → on the B direction when mobile, lens unit 252 X ← → the Y direction moves with respect to camera model 250.Therefore, be attached to lens 251 on the lens unit 252 and the focal length between the camera model 250 and be converted, thereby the depth of focus between making when normal photographing and OCR function operation is converted.In the present embodiment, when the OCR function in when work, camera joystick 253 is slided by a solenoidal drive part (omitting the figure) that comprises that has for example received a drive signal from control section 231 (Figure 14), then, depth of focus is changed automatically.Sliding handle with the handle 253a interlocking of camera joystick 253 can be set, so that have the structure of for example when the OCR function operation, the manual operation of macroshot being changed by the user on camera body.
Fig. 2 shows a functional block diagram, and it is illustrated in the formation of the focus condition display device that is provided with in the portable phone 10 of present embodiment.
In Fig. 2, the focus condition display device of present embodiment comprises: imaging device 20 (corresponding to the camera 112 of portable phone 10), focus area extracts part 21, edge enhancement process part 22, histogram processing section 23, variance yields computing part 24, time integral value computing part 25, focus condition is determined device 26, focus condition display unit 31, and display image composite part 32.
The image of from imaging device 20, catching, extract part 21, edge enhancement process part 22, histogram processing section 23, variance yields computing part 24, time integral value computing part 25, focus condition at focus area and determine in device 26 and the focus condition display unit 31 processedly, generate a display image of focus condition thus.The display image of focus condition and the image of catching from imaging device 20 are synthesized in display image composite part 32, are output to LCD display part 115 and 116 then.
In the portable phone of the focus condition display device of present embodiment and the outfit camera that is equipped with the focus condition display device, the formation of above-mentioned parts in addition is identical with routine, and omits description of them in this example.
Below with reference to Fig. 2, the portable phone 10 in the above-mentioned present embodiment and the operation of focus condition display device are described.
When the camera 112 of the portable phone 10 that utilizes present embodiment is taken an image, the image of catching in imaging device 20 extracts in the part 21 at focus area and is provided a focus area setting, is extracted in the luminance signal of the picture signal that comprises in the scope of this focus area then.
Fig. 3 schematically shows the setting of the focal zone in this example and the extraction of image.In Fig. 3, at the core of an image 41 of catching a rectangular focus zone 42 is set, and extracts the picture signal that comprises in the focus area 42 by imaging device 20.The size of focus area, shape and position etc. can at random change, and also can at random be provided with by the user.
To extract the luminance signal of extracting in the part 21 at focus area and carry out local multiplication and accumulation process, and in edge enhancement process part 22, carry out absolute value then and handle, generate the image signal data that the edge strengthens thus with the space difference operator.Fig. 4 is presented at the example of the space difference operator of using in the edge enhancement process part 22.
After this process, the focus condition display device of present embodiment has following two methods and determines focus condition according to the image signal data that aforesaid edge strengthens.
In first method, in time integral value computing part 25, calculate a time integral value, wherein the signal that strengthens at the edge of a certain section time durations is integrated.In this example, a certain section time durations is set up influence that time fluctuation produced and the required time of the average image signal as the value that is used to reduce above-mentioned signal.This has stablized determining of focus condition.Then, determine in the device 26, divided by a predetermined value, calculate the value of focus condition by the time integral value that will in value computing part 25, be calculated at focus condition.If the value of focus condition is big, determine that then focal length is what regulated; If the value of focus condition is little, determine that then focal length is what do not regulate.
In second method, in histogram processing section 23, the value of the signal that strengthens with respect to the edge generates the histogram as shown in Figure 13 about the relation between edge strength and the frequency.Then, in variance yields computing part 24, only come the variance yields of signal calculated with those signals that are not less than some threshold values in the aforesaid histogram.Then, in time integral value computing part 25, calculate an integrated value, wherein, with the variance yields of above calculating at a certain section time durations integration.In this example, as mentioned above, a certain section time durations is influence that time fluctuation produced and the required time of the average image signal for the value that reduces picture signal.Yet, be provided with than a certain period that time durations is longer in first method.
Then, determine in the device 26, divided by a predetermined value, add a deviant then, calculate the value of focus condition by the time integral value that will in time integral value computing part 25, be calculated at focus condition.If the value of focus condition is big, determine that then focal length is what regulated; If the value of focus condition is little, determine that then focal length is what do not regulate.
In aforesaid second method, have only that those signals that are not less than some threshold values are used in the histogram, so that remove because the edge that the high-frequency noise in the focus area 42, hand activity of user or the like are produced, and the influence of controlling them.
In addition, from the histogram calculation variance yields time, can use a kind of method that obtains variance yields, this method is only used those values that are not less than some threshold values and is not more than the value of some threshold values.This removes the edge that random noise detected that is generated when basis is photographed in the dark.
In general, when the focus of manual camera is conditioned, regulate focus by moving a focusing ring.Yet in relating to the situation that focuses camera, such as in mobile terminal device, the user need move up and down portable terminal in order to regulate a predetermined focal length.Therefore, in the imaging device 20 of present embodiment, the image in the focus area shown in Fig. 3 42 alters a great deal on above-below direction, and the fluctuation of the time integral value of picture signal is very big.
As mentioned above, by utilize the variance yields integrated value of calculating computing time in variance yields computing part 24, the influence that variation produced of image can be controlled in the focus area, and can calculate a stable value.
When above-mentioned first method and second method compared, although the accuracy of first method on the value of the focus condition that is calculated low than second method, the advantage of first method was to handle used time less.By contrast, although second method handled with more time than first method, the advantage of second method is that higher accuracy is arranged on the value of the focus condition that is calculated.
In the present embodiment, can use first method or second method.Perhaps, can obtain time integral value by these two methods, so that adopt the value of better (higher) accuracy.
In addition, in the present embodiment, in aforesaid first method and second method, focus area extracts part 21 is extracted the picture signal that comprises in the scope of the focus area from the image of catching imaging device 20 luminance signal.This has reduced the required time of computational process subsequently, and prevents the deterioration of the accuracy that the influence owing to unnecessary image section produces in the determining of focus condition.Yet, the present invention is not limited to this, and can carry out the CPU of high speed processing or do not have in the situation of unnecessary image section using, can extract luminance signal, and obstructed overfocus extracted region part 21 is extracted about the picture signal of all images of in imaging device 20, catching.
In addition, in the present embodiment, in aforesaid first method and second method, strengthen, the accuracy of determining of the focus condition in the image with unclear marginal portion is enhanced by carry out the edge by means of edge enhancement process part 22.Yet the present invention is not limited to this.If there is no image with unclear marginal portion, then can in processing subsequently, use by focus area and extract luminance signal that part 21 extracts or, strengthen and do not carry out the edge by edge enhancement process part 22 about the luminance signal of the picture signal of all images of in imaging device 20, catching.
In addition, in the present embodiment, in aforesaid second method, time integral value computing part 25 is by calculating a time integral value at variance yields that calculates by variance yields computing part 24 of a certain section time durations integration.This reduces the influence that time fluctuation produced of the value of signal, and improves the accuracy in the determining of focus condition.Yet the present invention is not limited to this.The variance yields that calculates by variance yields computing part 24 can use in process subsequently.
Hereinbefore, determine that by focus condition the value of the focus condition that device 26 is calculated is transfused to focus condition display unit 31.Focus condition display unit 31 is used for showing and notifying to the user processing of focus condition according to the value of focus.
Focus condition display unit 31 generates the focus condition display image corresponding to the value of focus condition, and this image is outputed to display image composite part 32.In addition, focus condition display unit 31 can one of output be used to make this LED flicker/light-emitting device 113 flicker or luminous signals in predetermined situation, and perhaps one is used to make loud speaker 114 and 123 to produce the signal of a sound.
In this example, aforesaid predetermined situation is such situation, and wherein the value of focus condition becomes for example maximum, and in this situation, focus is conditioned in imaging device 20.Might notify the user this information by making these LED flicker/light-emitting device 113 flickers or sound luminous or that loud speaker 114 and 123 generations are scheduled to.
Specify the example that on LCD display part 115 and 116, shows focus condition below with reference to Fig. 5 to 11.Focus condition display unit 31 is set in advance, so that it can carry out these demonstrations.
Fig. 5 to 11 is presented at the various forms of examples that show focus condition on the LCD display part 115 and 116 of portable phone 10 of present embodiment, and present embodiment comprises aforesaid focus condition display device.In the display format shown in Fig. 5, focus condition shows with a bar chart.In Fig. 5, focus condition shows that Figure 51 is displayed on the display screen 53 on LCD display part 115 or 116, its indication be, (gauge) moves right along with gauge, the value of focus condition becomes higher.In addition, bar 52 is indicated the maximum of focus condition hereto.
Show that according to such focus condition the user can take when position that focus conditions show that the gauge of Figure 51 becomes maximum is as the focal position of camera 112 watching display screen 53 and determine, moves up and down the portable phone 10 of present embodiment.
In the display format shown in Fig. 6, focus condition shows with a level meter.In Fig. 6, focus condition shows that level meter 61 is displayed on the display screen 63 on LCD display part 115 or 116, its indication be that along with the demonstration level of level meter moves from the minimum to the maximum clockwise, the value of focus condition becomes higher.In addition, bar 62 is indicated the maximum of focus condition hereto.
Show according to such focus condition, the user can take when a position that focus conditions show that the demonstration level of level meters 61 becomes maximum is as the focal position of camera 112 watching display screen 63 and determine, moves up and down the portable phone 10 of present embodiment.
In the display format shown in Fig. 7, focus condition shows with digital value.In Fig. 7, on the display screen on LCD display part 115 or 116 73, the digital value corresponding to focus condition is displayed on the display window 71, its indication be that along with digital value becomes higher, the value of focus condition becomes higher.In addition, display window 71 is indicated the maximum of focus condition hereto.
Show according to such focus condition, the user can take when a position that the digital value corresponding to focus condition that shows becomes maximum is as the focal position of camera 112 watching display screen 73 and determine on display window 71, moves up and down the portable phone 10 of present embodiment.
In the display format shown in Fig. 8, focus condition is to use the number of graphic form to show.In Fig. 8, on the display screen on LCD display part 115 or 116 83, its number is shown corresponding to the graphic form 81 of focus condition, its indication be that along with the number of graphic form 81 becomes bigger, the value of focus condition becomes bigger.In order to carry out such demonstration, for example can show corresponding to graphic form by merchant that the value of focus condition is drawn divided by a predetermined value.In addition, graphic form 82 shows corresponding to the number of the peaked graphic form of focus condition hereto.
Although in Fig. 8, show the rectangle quadrangle as an example, also can use the shape of this shape any graphic form in addition to show.
Show according to such focus condition, the user can take when a position that the number of shown graphic form 81 becomes maximum is as the focal position of camera 112 watching display screen 83 and determine, moves up and down the portable phone 10 of present embodiment.
In the display format shown in Fig. 9, focus condition shows with change in color.In Fig. 9, on the display screen on LCD display part 115 or 116 93, show the piece 91 of its color corresponding to focus condition.The color of this piece 91 is corresponding to the value of focus condition.
Figure 10 shows the example of formation of the color table of the relation between the value be used for writing down in this example color block 91 and focus condition.Usually, the color of the piece 91 that shows on display screen 93 is to use the RGB pigment to determine.The value of these pigments can be associated with the value of focus condition and be recorded in the color table.
Example shown in Figure 10 is constructed such that the value of focus condition becomes higher along with the color of piece 91 is approaching green, and along with the color of piece 91 is approaching red, the value of focus condition becomes lower.Certainly, the display format of the focus condition display device of present embodiment is not limited to this, therefore can use the color table of any structure.
Show according to such focus condition, the user watch display screen 93 and determine shown 91 a position of approaching green can take in as the focal position of camera 112, move up and down the portable phone 10 of present embodiment.
In display format shown in Figure 11, focus condition is to show with the density of shown character.In Figure 11, character 101 " Focus is adjusted " (focal length is conditioned) is displayed on the display screen 103 on LCD display part 115 or 116 with the density corresponding to the value of focus condition.
In this situation, the density of character 101 is constructed such that it fluctuates in a preset range according to the value of focus condition.For example, this density can be shown to the scope of 255 (whites) from 0 (black) at one.Show that according to such focus condition the user can take, and moves up and down the portable phone 10 of present embodiment when a position watching display screen 103 and definite shown character to become the darkest is as the focal position of camera 112.
Second embodiment
In the present embodiment, because identical among focus condition display device and the portable phone 10 that is equipped with it and first embodiment shown in Fig. 1 and 2, so omission is to their explanation.First embodiment is constructed such that focus condition is displayed on the display screen on LCD display part 115 or 116, as shown in Fig. 5 to 11.By contrast, second embodiment is characterised in that, not on LCD display part 115 or 116, to show, perhaps except on LCD display part 115 or 116, showing, by the LED 113 that is set on the portable phone 10 is glimmered or luminous so as with focus condition to user notification.
In Fig. 2, for example as a kind of mode that makes aforesaid LED 113 flickers with a predetermined method, focus condition display unit 31 can be configured such that it can calculate one by with the value that value obtained of a predetermined value divided by focus condition always, and use the value of being calculated to make LED 113 flickers as a speed (pace).This just increases the speed of the flicker of LED 113 pari passu when the value of focus condition becomes higher, and the user can determine the focus condition of camera 112 according to this speed.
In addition, in Fig. 2, for example as a kind of mode that makes aforesaid LED 113 flickers with a predetermined method, focus condition display unit 31 can be configured such that it determines that whether the value of focus condition is greater than a predetermined value, if and the value of focus condition just makes LED 113 luminous greater than this predetermined value.This makes LED 113 luminous during greater than this predetermined value in the value of focus condition, and like this, the user just can determine the focus condition of camera 112 according to it.
The 3rd embodiment
In the present embodiment, because identical among focus condition display device and the portable phone 10 that is equipped with the focus condition display device and first embodiment shown in Fig. 1 and 2, so omission is to their explanation.First embodiment is constructed such that focus condition is displayed on the screen, promptly on the LCD display part 115 and 116 as shown in Fig. 5 to 11.By contrast, second embodiment is characterised in that, be not to show (perhaps except on LCD display part 115 and 116, showing) on LCD display part 115 and 116, by making the loud speaker 114 that is arranged on the portable phone 10 or predetermined sound of 123 generations to the user notification focus condition.
In Fig. 2, for example as making loud speaker 114 or 123 produce a kind of mode of predetermined sound, focus condition display unit 31 can be configured such that it can always calculate one by with the value that value obtained of a predetermined value divided by focus condition, and make loud speaker 114 or 123 produce the sound of its frequency corresponding to the value of being calculated.This just improves the frequency by loud speaker 114 or 123 sound that sent pari passu when the value of focus condition becomes higher, and the user can determine the focus condition of camera 112 according to it.
In addition, in Fig. 2, for example as make aforementioned loud speaker 114 or 123 produce predetermined sounds a kind of mode, focus condition display unit 31 can be configured such that it determines that whether the value of focus condition is greater than a predetermined value, if and the value of focus condition just makes loud speaker 114 or 123 produce this predetermined sound greater than this predetermined value.This produces this predetermined sound when just making loud speaker 114 or 123 values at focus condition surpass this predetermined value, and like this, the user just can determine the focus condition of camera 112 according to it.
The 4th embodiment
The fourth embodiment of the present invention is the portable phone of an outfit camera, it comprise one with first embodiment in the focus condition display device of same way as.Figure 12 shows a functional block diagram, and it is illustrated in the formation of the focus condition display device that is provided with in the portable phone.In the drawings, be furnished with Fig. 2 in the parts of identical mark represent identical parts, and omit explanation to it.
Among Figure 12, the focus condition display device of present embodiment comprises a BPF (band pass filter) 80 (filter), and it replaces the display image composite part 32 shown in Fig. 2, is used for removing the high fdrequency component of the spatial frequency component of viewdata signal.
Focus condition display unit 31 control BPF 80 are so that it expands the scope (high fdrequency component) of the frequency component that will remove pari passu from viewdata signal among BPF 80 when the value step-down of the focus condition of determining device 26 outputs from focus condition.The mode of the scope of the above frequency component that will remove from viewdata signal by BPF 80 according to the value of focus condition for example can be as follows.
Focus condition display unit 31 is calculated a value that obtains divided by a predetermined value by the value with focus condition.Behind the viewdata signal in each block of pixels of BPF 80 orthogonal transforms, the aforementioned value that BPF 80 obtains by 31 calculating of focus condition display unit.Then, extract lower frequency components in the spatial frequency component that BPF 80 comprises continuously from viewdata signal, so that the ratio of the number of the frequency component of extracting and sum equals to be equivalent to the rate value (for example percentage) of aforementioned value, be set to the frequency component that inverse transformation is extracted under 0 the condition in other frequency component, and they are outputed to LCD display part 115 and 116.
Show according to such focus condition, the user is when the display screen of watching LCD display part 115 and 116 is also intuitively determined the fuzzy very little focal position of a position as camera 112 of shown image, can take, move up and down the portable phone 10 of present embodiment.
Portable phone and the focus condition display device that is arranged at wherein according to the outfit camera among above-mentioned each embodiment, after focus area extracted part 21, edge enhancement process part 22, histogram processing section 23, variance yields computing part 24, the time integral value computing part 25 etc. through a predetermined processing, its focus condition determined that by focus condition device 26 is determined at the viewdata signal of catching from camera 112.And focus condition can with a kind of be the direct-vision method that the user understands easily, by focus condition display unit 31 through LCD display part 115 and 116, LED 113 and loud speaker 114 and 123 be shown or notify.
This allows to plan to use portable phone 10 to come the user of photographic images easily to confirm with the focus condition of visual or acoustically demonstration by reference and regulate focus.
The 5th embodiment
In the present embodiment, character is included in the reference object." char " in this example also comprises the code such as bar code except general language and character.In other words, character means the demonstration that reference object itself wherein is arranged to have a general or general meaning.
Now, the improvement of the function of the portable phone of outfit camera is significant.For example, the exploitation well afoot of portable phone that has the pixel count of 100,000 Pixel-level.In addition, along with the improvement of pixel count, the various still application of difficulty possibilities that become in the past.One of them application is considered to be in the OCR function is installed on the portable phone.Yet, the pixel count of conventional portable phone is about 100,000, therefore, to directly take the item that is imprinted on the business card for example with the camera that is provided with in the portable phone, i.e. character such as name, exabyte, phone call/facsimile number, addresses of items of mail etc., and in portable phone, obtain these characters, be difficult always.
The portable phone of present embodiment adopts according to each the focus condition display device in the previous embodiment.In being equipped with the portable phone of camera, by the pixel count of digital camera is brought up to the mega pixel level, pixel count is equivalent to the pixel count of small-sized digital camera, and has and make the imaging of customer satisfaction system image quality become possibility.The inventor thinks, although conventional portable phone is had any problem, but by the OCR function of height pixelation is set in the portable phone of such outfit camera, just might be used in the direct character of taking such as name, exabyte, phone call/facsimile number, addresses of items of mail etc. of the camera that is provided with in the portable phone, and in portable phone, obtain them, be stored in the memory thus, and according to the telephone number that is obtained with addresses of items of mail is directly made a phone call or send out mail.In this case, big if pixel count becomes, just might take long character string (such as URL) with long-focus.
Yet when attempting once to discern a long character string, itself diminishes character, so camera preferably can easily change to the feature pattern from common screening-mode.Yet in the equipment of routine, the technology that does not give this respect is considered.In addition, in order to take the small characters string and to discern it exactly, preferably, when taking, will be accurately positioned on the display screen as the character string of reference object with good state.Yet in the equipment of routine, the technology that does not give this respect is considered.
Figure 32 schematically shows a kind of mode, wherein utilizes according to the portable phone of the outfit camera of present embodiment and takes the URL that for example is imprinted on the business card.As shown in Figure 32, when the visual angle of lens LS is 40 ° and focus is conditioned in close-up condition distance H when being 10cm, the width W of the reference object that can take is 7.28cm.At this width, once can take for example URL who is imprinted on the business card.Yet, go up the character string that shows in display unit (main LCD and secondary LCD the two) and diminish, be very difficult to confirm whether focus is conditioned to such an extent as to become, under this occasion, can carry out effectively according to each the focus condition display unit in the foregoing description.
Following with reference to the portable phone of description of drawings according to the outfit camera that comprises the focus condition display unit of the fifth embodiment of the present invention.Figure 16 to 20 shows the flow chart of description according to the flow process of the processing of the portable phone of the outfit camera that comprises the focus condition display unit of present embodiment, focuses on the OCR function.Figure 21 to 31 is presented in the flow process of processing content displayed on display unit.
In standby screen 301, when this device is set to camera mode and when step S1 carries out the camera start-up course, display statement on display screen 302 " camera is starting " (step S2).At step S3, when the camera startup is finished, on display unit, show one and finish image (through image) (Figure 21,303).On this screen, can select " tripping ", " display menu " and " cancellation ".At step S4, a photographic images is kept in the first memory by rewriteeing.In this example, first memory is a so-called buffer storage, and first memory by constantly rewriteeing this picture signal in the shooting operation register map image signal with as imaging object.At step S5, on display unit (309), be presented at the photographic images of preserving in the first memory.When cancelling shooting by selection " cancellation ", this process turns back to the standby screen (standby mode) (310) among the step S15.In this example, when carrying out normal photographing in practice, omitted step S7 (press in the menu button not), and in step S8, on shutter release button, carried out a push (being).
Repeat to be pressed up to shutter release button from the processing of step S4 to S8.
When shutter release button is pressed in step S8, show that at step S9 is confirmed a screen (Figure 21,304).Under this situation, when selecting " cancellation " time (step S10), then process turns back to step S4.Select when not selecting " cancellation " but in step S11 " preservations ", then demonstration " preserving " (306 of Figure 21,311-312 of Figure 22).If select " cancellation " (denying among step S11) in a scheduled time during preservation, then process turns back to step S9.When pass by this preset time after selection " preservation ", then the view data of whole captured image in fact just can be saved.In other words, at step S12, the photographic images that is kept in the first memory is for example compressed with jpeg format, then at step S13, the view data of compression is kept in the second memory (such as a Nonvolatile memory card) (step S13, the 313-314 of Figure 22).Then, served as the Cheng Qian and entered step S14 when suspending camera function, at step S15, process enter standby mode and carry out to it demonstration (step S15,301 of Figure 21, Figure 22 310).
At step S7, when selecting by menu button (being), process advances to step S16, and shows that is taken a submenu screen (Figure 21,305).On submenu, for example show that the item " 1 " about taking arrives " 9 ".At step S18, from shown submenu, select the item of a hope, and in step S18, determine whether to switch screening-mode.Under the situation of the switching of not carrying out screening-mode, set selected.Under the situation of the switching of carrying out screening-mode (be), process advances to step S19, and shows a screening-mode menu screen (Figure 21,307).In the screening-mode menu, for example display items " 1 " arrives " 4 ".According to which selects carry out a deterministic process, process can advance to step S21 any one (A of Figure 16 is to D) to S24.When selecting " rest image " at step S21 and selecting "Yes" then, then process turns back to step S4 and goes to carry out processing.
When step S22 selects " moving image ", as shown in Figure 17, process continues step S25, and preserves a photographic images in the first memory by being overwritten in.Then,, be presented at the photographic images of preserving in the first memory,, determine whether by the cancellation button then at step S27 at step S26.If by cancellation button (being), then process turns back to the standby mode among the step S15.Under situation, cross the Cheng Qian and see step S28, and determine whether by menu button not according to cancel button (denying).In step S29 to S38 subsequently, moving image capture is carried out basically identical processing among the step S11 to S14 with Figure 16, therefore be omitted in the description in the flow chart.
At step S24, when selecting " character reads " (be, Figure 23 315), process advances to the step S39 of Figure 18, and shows that a character reads menu screen (Figure 23,316).The item that character reads for example comprises " 1 " URL, " 2 " addresses of items of mail, " 3 " telephone number and " 4 " alphanumeric character.Other item can be set.
At step S41, determine whether URL is the object item that character reads, if be, then process advances to step S42, and " 1 " is stored among the regional X in the memory.If in step S41, whether, determine then whether addresses of items of mail is the object item that character reads.If be, then process advances to step S43, and " 2 " are stored among the X of memory block.If, then process advances to step S45 in step S43, and whether definite telephone number be the object item that character reads, if be, then process advances to step S46, and " 3 " are stored among the X of memory block.If, then process advances to step S47 in step S45, and whether definite alphanumeric character be the object item that character reads, if be, then process advances to step S48, and " 4 " are stored among the X of memory block.If, then process advances to step S49 in step S47.
At step S49, in first memory, preserve a photographic images by rewriteeing, and in step S50, on display unit, be presented at the photographic images of preserving in the first memory.Under this situation, for example as shown on the display screen 37 of Figure 23 like that, show the reference object " abcdef.com " of the URL of a homepage of representing Abcdef, finishing image as one, and also show a focus bar.For example, display message " is taken when the most approaching blueness of the color of focus bar ", and the user can show the affirmation focus condition according to this.In other words, carry out determining of focus from step S51, and show the result that focus is determined at step S52.Focus is determined and result's demonstration can be undertaken by the processing described in each of aforesaid embodiment.When focus was identified, button (step S53) determined whether to trip.If in step S53, whether, then in step S54, determine whether by menu button.If menu button is pressed (being), then process turns back to the step S19 of Figure 16, and shows the screening-mode menu screen.If menu button is not pressed (denying), then determine whether by the cancellation button at step S55.If, then process turns back to step S49 in step S55.If be, then process turns back to step S15, and enters standby mode.
If in step S53 be, then process advances to step S56, and shows the photographic images of " abcdef.com " in rectangle region 318a, shown on the display screen 318 of Figure 23.
Then, at step S57, determine whether by the cancellation button.If be, then process turns back to step S49.If whether, then process advances to step S58, and determines whether by recognition button.If whether, then process turns back to step S56.If be, then pass through character recognition process of OCR function executing at step S59, and at step S60, the result of character display identification on display unit.Then, process advances to step S61, and determines whether that according to recognition result needs discern again.If be, then process turns back to step S49.If whether, then process advances to step S62.At step S62, determining whether will be by menu button.If be, then process advances to the step S71 of Figure 19.If whether, then process advances to step S63, and determine whether will be by carriage return button.If whether, then process turns back to step S60.If be, then process advances to step S64.In step 64, determine whether " 1 " is stored among the aforesaid memory block X.If be, then process advances to the URL input pattern among the step S67.If whether, then process advances to step S65, and determines whether " 2 " are stored among the aforesaid memory block X.If be, then process advances to the mail pattern writing among the step S68.If whether, then process advances to step S66, and determines whether " 3 " are stored among the aforesaid memory block X.If be, then process advances to the exhalation pattern among the step S69.If whether, then process advances to the notepad registration mode among the step S70.
As shown in Figure 19, at step S71, show a character recognition submenu screen (Figure 23,323).To " 7 " and at step S73, select any one from aforesaid " 1 " to " 6 " from " 1 " of character recognition submenu at step S72 to S78.For example, in the continuous identification in step S73, when " 1 identification continuously " was selected, then process advanced to step S49.If do not select this, then in the extra identification in step S74, when " 2 additionally identification " was selected, process advanced to step S39.In step S75 in the new registration of telephone directory, when " 3 in telephone directory new registration " were selected, then process advanced to the telephone directory registration mode among the step S79.If do not select this, then in the extra registration in the telephone directory in step S76, when " extra registration in 4 telephone directories " were selected, process advanced to the telephone directory edit pattern among the step S80.If do not select this, then in the registration of the bookmark in step S77, when " bookmark registration " was selected, process advanced to a bookmark registration mode.If do not select this, then process advances to the edit selection among the step S78.If select " editor ", then process advances to the input editing pattern among the step S82.If do not select " editor ", then process advances to selected pattern.Below describe aforesaid " 1 " and arrive the detailed process and the demonstration of " 3 ".
As shown in Figure 20, the code in continued access Figure 16 reads among the step S83 that selects step, shows that a code reads menu screen (Figure 27,352).The example of item comprises two types, that is: " 1 " one-dimensional bar code and " 2 " two-dimensional bar (QR sign indicating number).At step S85, determine whether to select to read one-dimensional bar code.If select to read one-dimensional bar code, then " 1 " is stored among the memory Y.Afterwards, if perhaps do not select to read one-dimensional bar code, then process advances to step S87, and determines whether to select to read two-dimensional bar.If select to read two-dimensional bar, then in step S88, " 2 " are stored among the memory Y, and process advance to step S89.If do not select to read two-dimensional bar, then process advances to step S89 and without step S88.
At step S89, in first memory, preserve a photographic images by rewriteeing, and in step S90, on display unit, be presented at the photographic images of preserving in the first memory then.In step S91, carry out determining of focus,, determine whether focus is conditioned at step S92.If focus is unadjusted, then process turns back to step S89.If determine that focus is what be conditioned, then process advances to step S93, the line code of going forward side by side identification.Whether successfully in step S94, determine by the code identification of OCR function.If code is discerned successfully, then the result and the process of reveal codes identification advance to step S96 in step S95.Like this, by the identification of code therein is to carry out the code identifying in the state that is conditioned of possible focus, compare with always carrying out code identification, just can reduce the processing of CPU and bear, and also can control to minimum to the minimizing of the frame rate that accompanies with the code identifying.
Then at step S96, determine whether by recognition button again.In other words, if code identification is unsuccessful, then press recognition button (being) again, and process turns back to step S89.If the result of the code that shows on display unit identification is successful (denying), then process advances to step S97, and determines whether by carriage return button.If not according to carriage return button, then process turns back to step S95.If press carriage return button, then process advances to step S98.If comprise the information that is used to discern URL in the result of code identification, then process can advance to the URL input pattern among the step S67.
For example, in step S56, in the display screen 317 of Figure 23, a URL roughly is positioned in [], carrying out the focusing process with the focus bar then, is a process of tripping then, thus at the photographic images that shows " Abcdef.com " in the rectangle region 318a shown on the display screen 318.If there are a plurality of row, then might for example select one will pass through the row of identifying by a key operation.Be used to determine the process of identifying by execution, carry out an OCR recognition function (319) that is used to read character (URL).When identification is finished, as shown on the display screen 320 like that, the URL that obtains by aforementioned process "
Http:// Abcdef.com" be used as one [URL] and show.By pressing carriage return button, also might start an internet connection procedure (322) with respect to this URL.
If prepare an addresses of items of mail, then process can advance to mail pattern writing (step S68) from step S99.For example, at step S68, in the display screen 326 of Figure 24, an addresses of items of mail roughly being positioned in [], carrying out the focusing process with the focus bar then, then is the process of tripping, in rectangle region 327a, show thus "
[email protected]" photographic images, as shown on the display screen 327 like that.If there are a plurality of row, then might for example select by a key operation will be through the delegation of identifying.By carrying out a process that is used to determine identifying, carry out the OCR identifying (328) that is used to read character (addresses of items of mail).When identifying is finished, shown in display screen 329 like that, the addresses of items of mail that obtains by aforementioned process is used as one [addresses of items of mail] and shows.By pressing carriage return button, show a mail writing screen (330) with respect to the people who has this addresses of items of mail.In this case, by pressing " transmission ", just might start internet connection procedure and send Email (331) with respect to this addresses of items of mail.
If telephone number is shown, then process can advance to exhalation pattern the step S69 from step S100.In addition, process can advance to the notepad registration mode among the step S70.
For example, at step S69, in the display screen 335 of Figure 25, a telephone number roughly being positioned in [], carrying out the focusing process with the focus bar then, then is the process of tripping, in rectangle region 336a, show thus "
0123456789" photographic images, as shown on the display screen 336 like that.If there are a plurality of row, then might for example select by a key operation will be through the delegation of identifying.By carrying out a process that is used to determine identifying, carry out the OCR identifying (337) that is used to read character (telephone number).When identifying is finished, shown in display screen 338 like that, the telephone number that obtains by aforementioned process is used as one [telephone number] and shows.By pressing carriage return button, show an exhalation affirmation screen (339) with respect to the people who has this telephone number.In this case, by pressing " calling ", just start an exhalation process (340).
By with aforementioned process (display screen 344 to 349) in identical process can carry out a recording process in notepad shown in Figure 26 to alphanumeric character.Omitted detailed description.This is equally applicable to the URL based on two-dimensional bar based on shown in the display screen 360 to 366 of the URL input of one-dimensional bar code and Figure 28 shown in the display screen 352 to 357 of Figure 27 and imports.
Then, if URL is transfused to (321 or Figure 28 of Figure 23 364), then, be necessary to import a continuous character string when URL is actual when comprising a longer character string.Under these circumstances, at step S71, show a character recognition submenu (Figure 29,367), at this, " 1 identification continuously " is selected, is determined then.As shown on the display screen 368 like that, a continuation character string " today/index.html " is taken, and confirm focus with the focus bar, then be to press shutter, the OCR that makes it possible to thus carry out as shown in the display screen 369 (370) character string " today/index.html " discerns.When identification is finished, as shown on the display screen 371 like that, show a character string that continuous character string is coupled together "
Http:// Abcdef.com/ today/index.html ".After content is identified,, just can obtains aforesaid URL and it is stored in (372) in the portable phone by pressing carriage return button.In this case, by pressing carriage return button, the internet that just can carry out with respect to aforesaid URL connects (374).On display screen 372,, also might show submenu once more by display menu.
Then, after acquisition URL,, just might register any item that " 1 " of following the URL item arrives " 4 " extraly by from submenu shows, selecting " 2 additionally identification ".For example, if addresses of items of mail of registration in the display screen from Figure 30 376, by selecting and decision " 2 addresses of items of mail ", as shown on the display screen 377 like that, the addresses of items of mail of the XX Taro on the business card is taken.In this case, focus condition also is to confirm with the focus bar, and "
[email protected]" be taken, as shown on the display screen 378 like that.In this case, might change one by a key operation and select row.When doing one when selecting for carrying out OCR identification, identifying is performed (379), and "
[email protected]" can be as addresses of items of mail and obtained (380).
On display screen 380, when selecting " carriage return ", show a new mail writing screen (381).Shown on the display screen 382, it is capable to move to a URL from an addresses of items of mail, and for example is being connected to this URL on the internet.In addition, when menu is shown (display screen 383), " 1 " to " 3 ", " 6 " and " 7 " are shown as selectable, and " 4 " and " 5 " are shown as the item that can not select." 4 " are shown as the item that can not select is because extra identification is performed, and thing " 5 " is shown as the item that can not select because menu is to be shown in a selecteed state of addresses of items of mail.
Afterwards, on the display screen 384 of Figure 31, for example when " 2 additionally identification " are selected, can select any one character to read, such as shown on the display screen 385 from " 1 " to " 4 ".In this case, when selecting " 3 " promptly when " telephone number ", such as shown on the display screen 386, the telephone number of XX Taro " 0123456789 " is taken and the focus bar is shown.After having confirmed focus condition,, just can take this telephone number (387) by pressing shutter with the focus bar.In this case, move up and down a plurality of row and can change a selection row.Next step, by carrying out OCR identifying (385), as shown on the display screen 389 like that, just can be registered in the telephone number that obtains on the display position of telephone number.In this case, when selecting " carriage return ", as shown on the display screen 390 like that, showing breathes out confirms screen.When selecting " calling ", just can carry out an actual process of carrying out call.When selecting " menu ", show submenu (391).When selecting " new registration in the telephone directory ", just can register this telephone number, such as shown on the display screen 392.Shown on the display screen 392, might be easily prepare an address book from a business card, this address book can show name, it read, telephone number, addresses of items of mail, individual URL in the tabulation or the like.Promptly " additionally discern " by function of use " 2 " after URL, addresses of items of mail, telephone number etc. is discerned continuously, for example all data that are identified of registration in telephone directory.
As mentioned above, when taking the character data that is imprinted on the business card etc. with camera,, just might understand focus condition easily according to the portable phone of present embodiment by with focusing arrangement notice user focus state.Afterwards, by taking for example character data under the state that is conditioned at focal length, and, just might in portable phone, easily obtain relatively short and long character string, for example URL, an addresses of items of mail or the like by be identified in the character data of taking under the kilter with the OCR function.Each embodiment that above reference is used in the portable phone that is equipped with camera has illustrated focus condition display device of the present invention and focus condition display packing.Yet focus condition display device of the present invention and focus condition display packing are not limited to the scope of these embodiment.Those skilled in the art can add various modifications and improvement to focus condition display device of the present invention and focus condition display packing under the situation that does not depart from the scope of the invention.Example comprises the demonstration of using colored demonstration, the demonstration of using the depth of color, other graphical displays or using character, pictograph character etc., and the notice of using sound, vibration or the like.
In above-mentioned each embodiment, as an example, the focus condition display device is applied to portable phone.Yet this equipment can be applied to any device, and promptly the portable data assistance such as PDA, the information processor such as pocket pc or the like need only these devices and comprise (built-in/external) camera.In addition, the view data as imaging object can be anything.In addition, in above-mentioned each embodiment, although used the title of being appointed as focus condition display device and portable phone, using these titles is for convenience of description.Therefore, the obvious title that also can use such as focus state display device, communication terminal and focus state display packing.
In addition, in above-mentioned each embodiment, use graphic form, symbol, character or the like at the example of the demonstration of LCD display part 115 and 116 and demonstration or the notifying device that is described to focus condition by loud speaker 114 and 123 sonorific examples.Yet, also visual, acoustics or the additive method that does not comprise previous example can be used for Notification Method.Constitute various types of devices of aforesaid portable phone and focus condition display device and their each circuit part, method of attachment such as type, quantity and memory portion and display part, be not limited to aforesaid embodiment, therefore can adopt any well-known structure.
Focus condition display device of the present invention and focus condition display packing, and the equipment such as portable phone that is equipped with them can be to be used to carry out the form realization of the functional programs that shows aforesaid focus condition.Although this program can be constructed such that it is built in each of aforementioned means in advance, this program also can be recorded in each computer readable recording medium storing program for performing that is separated with aforementioned means.
In the present invention, as such recording medium, main storage itself can be a program medium.In addition, the program reader such as CD-ROM drive can be a program medium, and it is set to external memory, reads by inserting a recording medium therein.In both cases, can construct a program stored, so that it is performed by the CPU visit.Perhaps, either way use such method, by this method, program is read, and institute's reader is downloaded in the program storage area that is not illustrated in the drawings, and program is performed there.The program that is used for this download is stored in each device in advance.
Aforesaid program medium is a recording medium, and it is constructed such that it and mobile terminal device or information processor are separable.Program medium can be the disk such as tape and cartridge tape, CD such as CD-ROM, CD-R/RW, MO, MD, DVD-ROM, DVD-RAM and DVD-RW, card such as PC card, Compact Flash Card (registered trade mark), SmartMedia (registered trade mark), IC-card, SD card (registered trade mark) and memory stick (registered trade mark), perhaps one is carried the medium of program with fixed form, comprises the semiconductor memory such as mask rom, EPROM, EEPROM and flash ROM.
In addition, program medium can be a kind of medium that carries program with the type of flow, under this mode, program is downloaded from a communication network by communication link, and this communication link can be connected to the external communication network such as the internet connects supplier or server terminal.By this way by under the situation of downloaded, the program that is used to download can be stored in advance, perhaps is mounted from other recording medium in program.The content of storing in recording medium is not limited to program, and content can be data.
Like this, if aforesaid program is recorded in an energy and the recording medium that separates of device body, just can be neatly with respect to various types of devices that comprise focus device display device of the present invention and focus device display packing to program upgrade, upgrade or the like for adding new display format.Therefore, providing concerning the user more easily, device becomes possibility.
Industrial applicibility
As mentioned above, according to focus device display device of the present invention and focus device demonstration side Method can show focus information visibly or with acoustically. Therefore, the user is just possible Easily confirm and regulate focus.
If will have the focus device display device of this superior characteristics is applied to and has small-sized prison The portable terminal of visual organ is such as the portable phone that comprises imaging device, portable information terminal Ends etc., the user just can easily confirm focus condition, has accurate accent thereby make it possible to take Burnt image.
In addition, from the portable phone that comprises imaging device and the shooting figure of portable data assistance In the picture, identification character easily, and regulate two advancing such as bar code and QR code The focus of the image of inhibition and generation is improved the accurate of character recognition and bar code and QR code identification thus The property.
In addition, by using focus Presentation Function and OCR function, can be with good accuracy Identification is long character string for example.
Claims (32)
1. portable terminal comprises:
Photograph Target Setting device can be provided for the normal Photographing Mode of photographic images and be used to take the OCR functional mode of character or bar code;
Display unit is used for showing the image of taking the photograph;
Focus condition is determined device, is used to determine the character taken under described OCR functional mode or the focus condition of bar code;
Recognition device is used for identification character of taking the photograph or bar code; And
The recognition result storage arrangement is used to store the recognition result of being made by described recognition device.
2. portable terminal comprises:
Photograph Target Setting device can be provided for the normal Photographing Mode of photographic images and be used to take the OCR functional mode of character or bar code;
The Photographing Mode switching device shifter is used for the setting of basis by the photograph target of described photograph Target Setting device, switches between normal mode and grand pattern;
Display unit is used for showing the image of taking the photograph;
Focus condition is determined device, is used to determine the character taken under described OCR functional mode or the focus condition of bar code;
Recognition device is used for identification character of taking the photograph or bar code; And
The recognition result storage arrangement is used to store the recognition result of being made by described recognition device.
3. according to the portable terminal of claim 1 or 2, wherein said focus condition determines that device is driven, and the character of being taken the photograph or bar code are discerned by described recognition device.
4. according to the portable terminal of claim 1 or 2, the discernible focus condition of wherein said character of taking the photograph or bar code determines that by described focus condition device determines, and the character of being taken the photograph or bar code are discerned by described recognition device.
5. according to the portable terminal of claim 1 or 2, comprise notifying device, be used to provide the relevant notice of determining the result that focus condition that device is made is determined by described focus condition.
6. according to the portable terminal of claim 1 or 2, comprise that providing relevant determines the result's that focus condition that device is made is determined notice and character or the bar code that identification is taken the photograph by described focus condition.
7. portable cell phone comprises:
Photograph Target Setting device can be provided for the normal Photographing Mode of photographic images and be used to take the OCR functional mode of character or bar code;
Display unit is used for showing the image of taking the photograph;
Focus condition is determined device, is used to determine the character taken under described OCR functional mode or the focus condition of bar code;
Recognition device is used for identification character of taking the photograph or bar code; And
The recognition result storage arrangement is used to store the recognition result of being made by described recognition device.
8. according to the portable cell phone of claim 7, wherein depend on the result of the identification of the bar code of being taken the photograph of being made by described recognition device, portable cell phone can be transferred to a communication standby condition corresponding to the result of identification.
9. according to the portable cell phone of claim 7, wherein when URL was derived as the result of the identification of the bar code of being taken the photograph by described recognition device, portable cell phone can be transferred to one made it can be connected via internet to the state of described URL.
10. according to the portable cell phone of claim 7, wherein when addresses of items of mail was derived as the result of the identification of the bar code of being taken the photograph by described recognition device, portable cell phone can be transferred to one made it can create the state of the mail that is addressed to described addresses of items of mail.
11. portable cell phone according to claim 7, wherein when telephone number was derived as the result of the identification of the bar code of being taken the photograph by described recognition device, portable cell phone can be transferred to one made it can proceed to the state of the call of described telephone number.
12. a portable terminal comprises:
Photograph Target Setting device can be provided for the normal Photographing Mode of photographic images and be used to take the OCR functional mode of character or bar code;
Display unit is used for showing the image of taking the photograph;
Focus condition is determined device, is used to determine the character taken under described OCR functional mode or the focus condition of bar code;
Recognition device is used for identification character of taking the photograph or bar code;
The recognition result storage arrangement is used to store the recognition result of being made by described recognition device; And
Communicator is used for executive communication.
13. according to the portable terminal of claim 12, wherein depend on the result of the identification of the bar code of being taken the photograph of being made by described recognition device, portable terminal can be transferred to a communication standby condition corresponding to the result of identification.
14. portable terminal according to claim 12, wherein when URL was derived as the result of the identification of the bar code of being taken the photograph by described recognition device, portable cell phone can be transferred to one made it can be connected via internet to the state of described URL.
15. portable terminal according to claim 12, wherein when addresses of items of mail was derived as the result of the identification of the bar code of being taken the photograph by described recognition device, portable cell phone can be transferred to one made it can create the state of the mail that is addressed to described addresses of items of mail.
16. portable terminal according to claim 12, wherein when telephone number was derived as the result of the identification of the bar code of being taken the photograph by described recognition device, portable cell phone can be transferred to one made it can proceed to the state of the call of described telephone number.
17. according to the portable terminal of claim 1, the result of the identification that wherein described at that time recognition device is made comprises and contains name, telephone number and or during a plurality of data item of addresses of items of mail, institute's recognition data all is recorded in telephone directory at once.
18. according to the portable terminal of claim 17, wherein said focus condition determines that device is driven, and the character of being taken the photograph or bar code are discerned by described recognition device.
19. according to the portable terminal of claim 17, the discernible focus condition of wherein said character of taking the photograph or bar code determines that by described focus condition device determines, and the character of being taken the photograph or bar code are discerned by described recognition device.
20. the portable terminal according to claim 17 comprises notifying device, is used to provide the relevant notice of being determined the result that focus condition that device is made is determined by described focus condition.
21., wherein provide relevant and determine the result's that focus condition that device is made is determined notice and character or the bar code that identification is taken the photograph by described focus condition according to the portable terminal of claim 17.
22. according to the portable terminal of claim 17, wherein portable terminal is the portable cell phone that is equipped with camera.
23. according to the portable cell phone of claim 7, the result of the identification that wherein described at that time recognition device is made comprises and contains name, telephone number and or during a plurality of data item of addresses of items of mail, institute's recognition data is recorded in telephone directory at once.
24. according to the portable cell phone of claim 23, wherein depend on the result of the identification of the bar code of being taken the photograph of being made by described recognition device, portable cell phone can be transferred to a communication standby condition corresponding to the result of identification.
25. portable cell phone according to claim 23, wherein when URL was derived as the result of the identification of the bar code of being taken the photograph by described recognition device, portable cell phone can be transferred to one made it can be connected via internet to the state of described URL.
26. portable cell phone according to claim 23, wherein when addresses of items of mail was derived as the result of the identification of the bar code of being taken the photograph by described recognition device, portable cell phone can be transferred to one made it can create the state of the mail that is addressed to described addresses of items of mail.
27. portable cell phone according to claim 23, wherein when telephone number was derived as the result of the identification of the bar code of being taken the photograph by described recognition device, portable cell phone can be transferred to one made it can proceed to the state of the call of described telephone number.
28. according to the portable terminal of claim 12, the result of the identification that wherein described at that time recognition device is made comprises and contains name, telephone number and or during a plurality of data item of addresses of items of mail, institute's recognition data is recorded in telephone directory at once.
29. according to the portable terminal of claim 28, wherein depend on the result of the identification of the bar code of being taken the photograph of being made by described recognition device, portable cell phone can be transferred to a communication standby condition corresponding to the result of identification.
30. portable terminal according to claim 28, wherein when URL was derived as the result of the identification of the bar code of being taken the photograph by described recognition device, portable cell phone can be transferred to one made it can be connected to the state of described URL via the Internet.
31. portable terminal according to claim 28, wherein when addresses of items of mail was derived as the result of the identification of the bar code of being taken the photograph by described recognition device, portable cell phone can be transferred to one made it can create the state of the mail that is addressed to described addresses of items of mail.
32. portable terminal according to claim 28, wherein when telephone number was derived as the result of the identification of the bar code of being taken the photograph by described recognition device, portable cell phone can be transferred to one made it can proceed to the state of the call of described telephone number.
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CNB2004800091679A Expired - Fee Related CN100451803C (en) | 2003-02-07 | 2004-01-16 | Focused state display device and focused state display method |
CN200610143352A Expired - Fee Related CN100588230C (en) | 2003-02-07 | 2004-01-16 | Protable cellular phone and protable terminal device |
CNB2006101433513A Expired - Fee Related CN100544406C (en) | 2003-02-07 | 2004-01-16 | Portable cell phone and portable terminal |
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CNB2004800091679A Expired - Fee Related CN100451803C (en) | 2003-02-07 | 2004-01-16 | Focused state display device and focused state display method |
CN200610143352A Expired - Fee Related CN100588230C (en) | 2003-02-07 | 2004-01-16 | Protable cellular phone and protable terminal device |
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JP2006157976A (en) | 2006-06-15 |
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CN1956500A (en) | 2007-05-02 |
CN100544406C (en) | 2009-09-23 |
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CN100588230C (en) | 2010-02-03 |
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JP3856813B2 (en) | 2006-12-13 |
JP3808087B2 (en) | 2006-08-09 |
CN100451803C (en) | 2009-01-14 |
JP3766431B1 (en) | 2006-04-12 |
JP2006238459A (en) | 2006-09-07 |
JP2006094561A (en) | 2006-04-06 |
CN100544405C (en) | 2009-09-23 |
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