WO2005041563A1 - 携帯電話 - Google Patents
携帯電話 Download PDFInfo
- Publication number
- WO2005041563A1 WO2005041563A1 PCT/JP2004/015118 JP2004015118W WO2005041563A1 WO 2005041563 A1 WO2005041563 A1 WO 2005041563A1 JP 2004015118 W JP2004015118 W JP 2004015118W WO 2005041563 A1 WO2005041563 A1 WO 2005041563A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- function
- image
- display
- mobile phone
- enlarged
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00127—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
- H04N1/00281—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a telecommunication apparatus, e.g. a switched network of teleprinters for the distribution of text-based information, a selective call terminal
- H04N1/00307—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a telecommunication apparatus, e.g. a switched network of teleprinters for the distribution of text-based information, a selective call terminal with a mobile telephone apparatus
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/69—Control of means for changing angle of the field of view, e.g. optical zoom objectives or electronic zooming
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/2628—Alteration of picture size, shape, position or orientation, e.g. zooming, rotation, rolling, perspective, translation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2250/00—Details of telephonic subscriber devices
- H04M2250/52—Details of telephonic subscriber devices including functional features of a camera
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2101/00—Still video cameras
Definitions
- the present invention relates to a mobile phone having a camera function that displays a captured image on a liquid crystal display screen and further has an enlarged display function for enlarging the captured image.
- a magnifying glass has been used as a tool to supplement the elderly and people with poor vision.
- mobile phones with a camera function are becoming widespread.
- the camera function captures people, landscapes, characters, or barcodes, records or reads them, and sends them to others by e-mail. Its main purpose is to use the mobile phone's LCD screen only to confirm the subject and display the operation menu when shooting.
- Patent Document 1 describes a method of using a liquid crystal screen display as a magnifying glass using this function.
- Patent Document 2 describes a method of enlarging and displaying information by various input methods regardless of a mobile phone.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2002-374450 ("Mobile phone with digital camera")
- Patent Document 2 Japanese Patent Application Laid-Open No. 2001-359088 ("Flat-type digital magnifying glass system")
- Patent Literature 1 and Patent Literature 2 mainly describe the device configuration.
- a mobile phone is provided with a close-up function and illumination means, and a means for adjusting a magnification is provided. It was too much power.
- the display screen is relatively small, and in mobile phones, it is desired that the function of a magnifying glass be used more and more easily.
- An object of the present invention is to provide an easy-to-use V and a user interface when a camera function of a mobile phone is used as a digital magnifier.
- the present invention is a mobile phone having a photographing function and an image display function of displaying an image photographed by the photographing function, wherein an enlargement display function of enlarging a photographed image photographed by the photographing function;
- the close-up function used when shooting nearby objects, the lighting function that illuminates the object to be shot, the full-screen image display function that hides the icons and clock displayed on the display screen and displays only the captured image
- a magnifying glass mode that integrates a photographed image size setting function for matching the photographed image size to the standby screen size and a process related to at least two or more functions selected from the group consisting of colors. It is a mobile phone.
- an operation unit for operating a mobile phone button or menu includes a magnifying glass mode button ⁇ an operation of each menu.
- the camera control unit controls the camera according to the processing content of the operation unit.
- the illumination unit has the function of illuminating the object, and is turned on automatically when the magnifying glass mode is set.
- the zoom unit performs settings for enlarging and photographing a photographed object.
- the magnification is set according to each function including the setting of the magnifying glass mode.
- the close-up section performs a process of focusing on the object when taking a close-up of the photographed object. For example, it is used for enlarging and displaying written characters.
- the image storage unit can store the photographed image and save the image before enlargement.
- the image processing unit performs image processing.
- the image display unit displays a captured image. If the image is processed by the processing of each function, the processed image is displayed.
- the present invention provides a mobile phone having: a photographing function; an image display unit that displays an image photographed by the photographing function; and an image storage unit that stores photographed image data photographed by the photographing function.
- a telephone an enlarged display function for enlarging a photographed image photographed by the photographing function and stored in the image storage unit and displaying the photographed image on the image display unit, and a close-up photographing function used for performing a close-up photographing ,
- a lighting function to illuminate the shooting target a shooting image full-screen display function that displays only the shooting image on the display screen, a shooting image size setting function to match the shooting image size to the standby screen size, and a camera
- the mobile phone is characterized by having a magnifying glass mode that integrates processing relating to at least two or more functions selected from a group.
- the magnified display function, the close-up function, and the lighting function When the enlarged display function and the close-up function are integrated among the full-screen display function of the captured image and the function of setting the size of the captured image, the macro photograph taken by the close-up function is further enlarged. Can be displayed. When the enlarged display function and the lighting function are integrated, the enlarged photograph can be taken brightly. By integrating the enlarged display function and the photographed image full screen display function, an enlarged photograph can be displayed in a wide range. When the enlarged display function and the photographed image size setting function are integrated, a wide range can be enlarged and displayed.
- a bright macro photograph taken by the close-up function and the lighting function can be further enlarged and displayed. In this way, the feature of each function is combined, and the photograph desired by the user can be automatically displayed.
- a function called a magnifying glass mode is newly added to a mobile phone, so that the mobile phone can be used with a simple operation.
- the user can specify the enlarged portion, operability is improved.
- the enlarged portion is a component for the user in advance, there is no need to move the camera again due to the area force after the enlarged display.
- it is possible to obtain an indication of the extent to which the image is displayed when the image is enlarged there is an advantage that the operation can be performed while visually confirming, and the operability is improved.
- displaying the reference at the time of enlarged display makes it easier to recognize the sentence, especially when reading the sentence, and helps to move the displayed portion.
- the movement of the hand is reduced, and the next area can be displayed reliably, and the next area can be displayed accurately.
- the boundary of the display character in an emphasized manner, there is an advantage that the visibility is further improved.
- FIG. 1 is a block diagram showing functional modules of a mobile phone according to an embodiment of the present invention.
- FIG. 2 is a front view of the mobile phone according to the first embodiment of the present invention.
- FIG. 3 shows a case where a display screen of a mobile phone according to the first embodiment of the present invention is displayed.
- FIG. 4 is a flowchart showing an example of a processing procedure for activating a magnifying glass function in the mobile phone according to the first embodiment of the present invention.
- FIG. 5 is a diagram showing an example of a display screen of a mobile phone according to a second embodiment of the present invention.
- FIG. 6 is a diagram showing a processing example when a desired enlargement position is at an edge of a liquid crystal screen according to the second embodiment of the present invention.
- FIG. 7 is a diagram showing an example of a magnification ratio table used for a magnifying glass function according to a second embodiment and a third embodiment of the present invention.
- FIG. 8 is a flowchart showing a flow of processing by a magnifying glass function according to a second embodiment of the present invention.
- FIG. 9 is a diagram showing a display example of a screen on a mobile phone according to a third embodiment of the present invention.
- FIG. 10 is a flowchart showing a flow of an enlargement function process according to a third embodiment of the present invention.
- FIG. 11 is a diagram showing an example of a display screen when the enlargement function is executed in the mobile phone according to the fourth embodiment of the present invention.
- FIG. 12 is a diagram showing an enlarged function of a mobile phone according to a fifth embodiment of the present invention.
- FIG. 13 is a flowchart showing a processing flow of a magnifying glass function according to a fifth embodiment of the present invention.
- FIG. 14 is a diagram showing an example of a Sobel filter used for an enlargement function of a mobile phone according to a sixth embodiment of the present invention.
- FIG. 15 is a flowchart illustrating an example of a processing procedure of the mobile phone according to the embodiment of the present invention.
- an image includes characters and the like.
- FIG. 1 is a functional block diagram of a mobile phone (hereinafter, referred to as “mobile phone”) according to the present embodiment.
- the mobile phone according to the present embodiment includes an operation unit 1 and a camera control unit. 2, an illumination unit 3, a zoom unit 4, a close-up unit 5, an image storage unit 6, an image processing unit 7, and an image display unit 8.
- it has a communication function and a telephone call function like a normal mobile phone, but is not directly related to a camera function, and thus is omitted in FIG.
- an operation unit 1 is an operation unit for operating buttons and menus of the mobile phone. , Operate the magnifying glass button and each menu.
- the camera control unit 2 controls the camera according to the processing content of the operation unit.
- the illumination unit 3 has a function to illuminate the object, and is automatically turned on when the magnifying glass mode is set.
- the zoom unit 4 performs settings for magnifying an object. It may be equipped with a side-distance function that automatically measures the distance to the subject. The magnification is set according to each function including the setting of the magnifying glass mode.
- the close-up section 5 performs a process of focusing on an object when taking a close-up of a photographed object. For example, it is used when a nearby written character is enlarged and displayed.
- the image storage unit 6 stores captured image data, and is also used when saving an image before enlargement.
- the image processing unit 7 performs various image processing.
- the image display section 8 displays a captured image. If the image has been processed by the processing of each function, the processed image is displayed.
- the illumination unit 3, the zoom unit 4, the close-up unit 5, the image storage unit 6, the image processing unit 7, and the magnifying glass function that performs the related control among the camera control unit 2 collectively
- the part integrated with the control unit 2a is referred to as a magnifying glass function processing unit Z, and performs processing relating to various magnifying glass mode functions described below.
- the mobile phone according to the present embodiment has a function of displaying a captured image on a liquid crystal display screen and an enlarged display function of enlarging the captured image. It is characterized by having.
- FIG. 2 and FIG. 3 are front views of the mobile phone according to the present embodiment.
- a magnifying glass mode key 9 is newly provided on the operation unit.
- a magnifying glass mode is displayed on the display screen in place of or together with the magnifying glass mode key 9 and can be selected.
- FIG. 4 is a flowchart showing the flow of the setting process of the magnifying glass mode. The description will be made with reference to FIGS. 1 to 3 as appropriate.
- the camera control unit 2 detects that the magnifying glass mode key 9 is pressed or the magnifying glass mode menu 10 is selected in step S401
- the camera is started (step S401).
- S402 When the camera starts up, the camera enlarges the captured image (step S403), activates the close-up function (step S404), sets the captured image size (step S405), displays the captured image on the full LCD screen, and displays the icon and clock.
- the display is turned off (step S406), the lighting is turned on (step S407), and a series of steps are automatically performed. The enlargement / reduction of the image may be automatically performed based on the distance measuring function.
- a default enlargement ratio may be determined in advance, and the default enlargement ratio may be set when the magnifying glass mode is set.
- the setting of the size of the captured image is to set the size to a certain reference size, for example, to match the size of the captured image with the size of the standby screen of the mobile phone.
- the execution order of the above-described functions is an example, and the execution order is variable. Note that it is preferable to have a captured image full-screen display function of hiding icons and a clock displayed on the display screen and displaying only the captured image.
- the mobile phone by adding a new magnifying glass mode to the mobile phone, simple operations such as one button operation or a selection operation on a menu screen are performed. With this, the magnifier mode can be activated and used conveniently.
- a mobile phone In the case of performing enlarged display, as the image is enlarged, the displayed area becomes smaller. For example, when displaying characters, 30 characters were displayed on the display screen before the enlargement, but only 10 characters are displayed after the enlargement. When enlarging a display, I want to display the character to be enlarged on the screen without losing the screen power.
- the mobile phone according to the present embodiment is characterized in that a portion to be enlarged is designated in advance, and only the designated area is enlarged. For example, set the center of the desired enlargement point and perform force enlargement display. FIG.
- FIG. 5 is a diagram showing a display before liquid crystal display screen 11 of the mobile phone according to the present embodiment is enlarged and displayed in the horizontal direction.
- the position to be enlarged is designated using, for example, the cross key 12.
- FIG. 7 is a diagram showing a correspondence relationship between a preset enlargement ratio and a display area.
- FIG. 8 is a flowchart showing the flow of the enlargement process according to the present embodiment.
- step S801 for example, the enlargement ratio table power shown in FIG.
- the display area size at the next enlargement ratio is acquired based on FIG. 8 (step S802) (step S803).
- step S803 usable enlargement ratios and area sizes that can be displayed at the time of enlargement are defined.
- step S804 the designated enlargement desired position is acquired (step S804), and when the enlargement is performed around that position, it is determined whether or not the enlarged display area fits within the image before enlargement (step S805).
- an enlargement area is set around the desired enlargement position (step S806). If it is determined that the image does not fit within the pre-enlargement image, a process of setting the area including the closest end including the desired enlargement position 12 as the enlargement area 13 (area indicated by a broken line) as shown in FIG. 6 is performed (Ste S807). After the enlargement area is set, the actual enlargement processing is performed (step S808). The series of processing ends when the enlarged display is performed.
- the enlargement ratio can be determined in advance, so that the enlargement process is simplified. Furthermore, since the enlarged portion can be specified on the screen, there is an advantage that the operability for the enlarged display is improved.
- the display area after the enlargement is indicated as "enlargement guide" 14. It is characterized in that it can be easily found and operated reliably.
- the range of the guide can be arbitrarily enlarged or reduced as shown by reference numerals 14a and 14b.
- the enlargement function can be enlarged and displayed while changing the enlargement ratio in several steps. Therefore, the display area when the display area is enlarged by one step may be shown, or the display area at a plurality of steps may be shown. In this case, it is preferable to perform processing such as enclosing the display of the area with a dotted line so that the display does not hinder the viewing as a magnifying glass.
- FIG. 9 is a diagram showing a display example when a plurality of enlargement guides 14 are displayed on the display screen 11. Based on this screen, it is possible to estimate the display area in the case where the enlarged display is actually performed.
- FIG. 10 is a flowchart illustrating a flow relating to display processing of the enlargement guide. As shown in FIG. 10, when the magnification button is pressed in the magnifying glass mode and detected (step S1001), the magnification at that time is acquired (step S1002). Next, referring to the enlargement ratio table (FIG. 7), the next enlargement ratio and display area size are obtained (step S1003).
- step S1004 an enlargement guide indicating an image display area when the next enlargement ratio is performed is displayed (step S1004).
- step S1005 When displaying a multi-step enlargement guide, the same processing is repeated (step S1005).
- step S1006 When a certain time has elapsed after displaying the enlarged guide (step S1006), the enlarged guide is deleted (step S1007), and the actual enlarged display is performed (step S1008).
- the enlarged portion can be estimated in advance, after the enlarged display, the actual enlarged display screen is out of the display area and the process is performed again. This eliminates the need to move the camera.
- the operation can be performed while visually confirming how far the image is displayed when the image is enlarged, there is an advantage that operability is improved.
- a mobile phone When displaying a magnified image on a mobile phone, only a part of the object is magnified and displayed on the display screen, so the image is magnified and the connection to the part is difficult to grasp! For example, when a sentence is enlarged and displayed, only the display screen area is enlarged and the top, bottom, left and right of the document are not displayed, so it is difficult to grasp the sense of a line. There is a feeling that it is difficult to recognize both when reading the rest of the sentence and when moving the displayed part.
- FIG. 11 is a diagram showing a display example on the mobile phone according to the present embodiment.
- a line is drawn on the screen, and the area between the lines is colored to form a “line guide” 15.
- the display of the line guide may be displayed at the same time when the magnifying glass is set, or may be displayed separately, as in the first embodiment. Further, it is preferable that the width (or height) of the line and color and the display color can be freely changed and set by a button operation or the like according to the display content.
- FIG. 11 is an example in which the background color is changed for each row, and there is an advantage that it is possible to easily grasp the interval between rows easily.
- FIG. 12 is a display screen showing the operation of the mobile phone according to the present embodiment. It is a figure for explaining on a surface. In FIG.
- reference numeral 18 denotes an image area before enlargement, and its contents are stored in the image storage unit 6 (FIG. 1).
- the area to be displayed next is determined according to the moving direction 16 of the operation key of the mobile phone (for example, the code 17 is displayed in the right direction)
- step S1301 when entering the magnifying glass mode (step S1301), an image before enlargement is acquired (step S1302) and recorded in the memory (step S1303). . Thereafter, enlarged display is performed as usual (step S1305). Subsequently, when the move key is pressed (step S1306), the direction of movement is acquired (step S1307), and the displacement of the coordinates of the enlarged area with respect to the display area before enlargement is calculated (step S1308). Thereafter, the coordinates of the enlarged display area are newly calculated according to the direction of movement (step S1309), and the screen after the movement is displayed (step S1310).
- Filters such as Sobel, Prewitt, and Labrassian can be used as processing for enhancing the boundary between characters and other parts.
- the filter shown in FIG. 14 can be used as a Sobel filter.
- Fig. 14 (a) shows a vertical edge detection filter, and (b) shows a horizontal edge detection filter.
- the Sobel filter shown in FIG. This is a filter that has coefficients for the weights of the surrounding eight pixels, and is one of the edge detection methods for obtaining the value of the drawing pixel from the values of the peripheral pixels calculated based on these coefficients.
- Figure 15 shows an example of applying this filter.
- FIG. 15 is a flowchart showing the flow of processing using a filter. As shown in Fig.
- step S1501 after the magnifying glass mode is detected (step S1501), if the characters are difficult to see, the emphasis display mode is further detected (step S1502). S 1503).
- the boundaries of the display characters are displayed with emphasis, so that there is an advantage that the visibility is further improved.
- the default value may be automatically changed based on the result of distance measurement or the previous data, or a plurality of magnifying glass modes may be prepared as a group of default values. You can keep it.
- the same processing can be performed for the reduced display as needed, as described for the enlarged display.
- Various programs for causing a computer to execute the processing described in the embodiments are also included in the scope of the present invention.
- the magnifying glass function of the present invention can be used for various mobile terminals such as PDAs, in addition to mobile phones.
- various mobile terminals such as PDAs
- the operability can be improved regardless of the size of the screen, it can be applied to various electronic devices such as a liquid crystal television.
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
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- Human Computer Interaction (AREA)
- Studio Devices (AREA)
- Telephone Function (AREA)
- Controls And Circuits For Display Device (AREA)
Description
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2005514930A JPWO2005041563A1 (ja) | 2003-10-22 | 2004-10-14 | 携帯電話 |
Applications Claiming Priority (2)
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JP2003362401 | 2003-10-22 | ||
JP2003-362401 | 2003-10-22 |
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WO2005041563A1 true WO2005041563A1 (ja) | 2005-05-06 |
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PCT/JP2004/015118 WO2005041563A1 (ja) | 2003-10-22 | 2004-10-14 | 携帯電話 |
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WO (1) | WO2005041563A1 (ja) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008058947A1 (de) * | 2006-11-13 | 2008-05-22 | Wolfgang Baum | Tragbares telefon mit nahkamera |
JP2010109707A (ja) * | 2008-10-30 | 2010-05-13 | Nec Corp | 画面表示方法、および携帯端末 |
FR2945695A1 (fr) * | 2009-05-13 | 2010-11-19 | Raoul Parienti | Appareil telephonique portable a ecran tactile particulierement adapte pour des utilisateurs malvoyants |
GB2477807A (en) * | 2010-02-16 | 2011-08-17 | Anwar St Clair | Providing a magnification feature via a portable communication device |
JP2011205534A (ja) * | 2010-03-26 | 2011-10-13 | Kyocera Corp | 携帯電子機器 |
WO2014200130A1 (ko) * | 2013-06-14 | 2014-12-18 | Oh Young Il | 휴대폰 전자식 디지털 돋보기 렌즈 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002374450A (ja) * | 2001-06-13 | 2002-12-26 | Michio Imada | デジタルカメラ付き携帯電話 |
JP2003235038A (ja) * | 2002-02-12 | 2003-08-22 | Canon Inc | 撮影光学手段付携帯機器 |
JP2004164559A (ja) * | 2002-09-27 | 2004-06-10 | Fuji Photo Film Co Ltd | 携帯端末装置 |
-
2004
- 2004-10-14 JP JP2005514930A patent/JPWO2005041563A1/ja active Pending
- 2004-10-14 WO PCT/JP2004/015118 patent/WO2005041563A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2002374450A (ja) * | 2001-06-13 | 2002-12-26 | Michio Imada | デジタルカメラ付き携帯電話 |
JP2003235038A (ja) * | 2002-02-12 | 2003-08-22 | Canon Inc | 撮影光学手段付携帯機器 |
JP2004164559A (ja) * | 2002-09-27 | 2004-06-10 | Fuji Photo Film Co Ltd | 携帯端末装置 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008058947A1 (de) * | 2006-11-13 | 2008-05-22 | Wolfgang Baum | Tragbares telefon mit nahkamera |
JP2010109707A (ja) * | 2008-10-30 | 2010-05-13 | Nec Corp | 画面表示方法、および携帯端末 |
FR2945695A1 (fr) * | 2009-05-13 | 2010-11-19 | Raoul Parienti | Appareil telephonique portable a ecran tactile particulierement adapte pour des utilisateurs malvoyants |
GB2477807A (en) * | 2010-02-16 | 2011-08-17 | Anwar St Clair | Providing a magnification feature via a portable communication device |
JP2011205534A (ja) * | 2010-03-26 | 2011-10-13 | Kyocera Corp | 携帯電子機器 |
WO2014200130A1 (ko) * | 2013-06-14 | 2014-12-18 | Oh Young Il | 휴대폰 전자식 디지털 돋보기 렌즈 |
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JPWO2005041563A1 (ja) | 2007-04-26 |
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