WO2010041457A1 - 映像出力装置及び映像出力方法 - Google Patents
映像出力装置及び映像出力方法 Download PDFInfo
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- WO2010041457A1 WO2010041457A1 PCT/JP2009/005255 JP2009005255W WO2010041457A1 WO 2010041457 A1 WO2010041457 A1 WO 2010041457A1 JP 2009005255 W JP2009005255 W JP 2009005255W WO 2010041457 A1 WO2010041457 A1 WO 2010041457A1
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Definitions
- the present invention relates to a video output device and a video output method that change the display mode of supplemental information according to the scaling factor of the display size of an input video.
- a device that receives a signal of a broadcast program provided by a television broadcast station or a cable television station processes the received signal and outputs an image.
- the device is referred to as “video output device”.
- the output destination of the video is a display equipped in the video output device, or an external display connected to the video output device via communication means such as a cable.
- a "two-screen mode" in which a screen is divided into two and displayed for two input videos is widely known.
- FIGS. 1 (a) to 1 (c) are diagrams showing display patterns in a general two-screen mode.
- FIG. 1A shows an example in which the input video A and the input video B are displayed in parallel at the same ratio.
- FIG. 1 (b) shows an example in which the input video A and the input video B are displayed with a difference in size.
- FIG. 1C shows an example in which an input video B of a small screen is superimposed and displayed on an input video A displayed on a full screen.
- FIGS. 2 (a) to 2 (c) show display examples in the case where an image is assigned to each display pattern of the two-screen mode shown in FIGS. 1 (a) to 1 (c).
- Patent Document 1 discloses one method for solving this problem. According to the method of this document, when the program accompanied by the data broadcast is reduced and displayed by screen division, the menu screen of the data broadcast designated on the program transmission side is reduced based on the layout information by the remote control operation by the user. Display superimposed on the outside of.
- this method is premised on that a predetermined character string and image data are attached to a program as data broadcasting together with layout information. Also, the user must operate the remote control continuously to display the information that he / she wants to confirm. Further, since information is superimposed and displayed on another divided screen, the other divided screen is hidden by the superimposed screen, and information is lost.
- Patent Document 2 discloses another method for solving the above problems. According to the method of this document, the first input video is displayed on the full screen for two or more input videos, the subtitle region including the character string is extracted from the second input video, and the extracted character string is It is superimposed and displayed on an arbitrary position of one input video.
- FIGS. 3 to 5 show an outline of processing according to the method disclosed in Patent Document 2.
- FIG. In the method of Patent Document 2, a character string area B 'is extracted from the input video B as shown in (b) of FIG. 3 out of the two input video A and B shown in (a) of FIG. As shown in (c) of FIG. 3, the character string area B ′ is superimposed and displayed on the input video A.
- FIG. 4 shows an example of display when an image is assigned to each screen shown in FIG. In the example shown in FIG. 4, in the baseball relay corresponding to the input video B, the score display portion corresponding to the character string area B ′ is displayed superimposed on the input video A.
- the information in the input video that the user wants to know needs to be a character string. Therefore, information that is not a character string (for example, a logo of a professional baseball team or the like) is not included in the character string area B '. Therefore, when the information that the user wants to know contains information that is not a string, there is a problem that the information is missing (can not be seen). For example, as shown in (a) of FIG. 5, when an unextractable symbol or mark is used in the score display portion of the input video B shown in FIG. 4, characters as shown in (b) of FIG. Only column parts are extracted. For this reason, as shown in (c) of FIG. 5, the symbols and marks are not displayed superimposed on the input video A.
- the character string area B ' can be superimposed and displayed at an arbitrary position of the input video A, but as long as the input video A is full screen display, the character string area B' is superimposed at any location of the input video A . For this reason, a part of information of the input video A is missing. For example, as shown in (c) of FIG. 4 and (c) of FIG. 5, since the character string area B ′ is superimposed on a part of the telop of the input video A, the telop information of the overlapped part Will be lacking.
- An object of the present invention is to provide a video output apparatus and a video output method that change the display mode of the supplementary information according to the scaling factor of the display size of the input video.
- the present invention relates to a screen configuration management unit for managing arrangement or scale of a screen for displaying at least one video, an area determination unit for determining a character area from an input video, and at least one character area determined by the area determination unit.
- the supplemental information storage unit configured to cut out the image of the supplemental information area including A supplementary information display determination unit that determines whether to perform the process and an output unit that outputs the input video and the supplementary information according to instructions from the screen configuration management unit and the supplementary information display determination unit, and the supplementary information display
- the determination unit displays the supplementary information based on the size of characters included in the character area in the input video, which changes according to the scale managed by the screen configuration management unit.
- the present invention relates to a screen configuration management unit for managing arrangement or scale of a screen for displaying at least one video, an area determination unit for determining a character area from an input video, and at least one character area determined by the area determination unit. It determines whether the supplementary information acquired by the communication unit is to be displayed, in addition to the input image based on the screen configuration managed by the screen configuration management unit and the communication unit acquiring the character string included in the information from the external server as the supplementary information A supplementary information display determination unit; and an output unit for outputting the input video and the supplementary information according to instructions from the screen configuration management unit and the supplementary information display determination unit, the supplementary information display determination unit
- the image output apparatus displays the supplementary information when the size of characters included in at least one character area determined by the area determination unit is smaller than a threshold.
- the present invention determines a character area from an input image, cuts out an image of a supplementary information area including at least one character area, holds it as supplementary information, and defines a screen layout or scale for displaying at least one image. It is a video output method for determining whether or not to display the supplementary information in addition to the input video based on the configuration, and outputting the input video and the supplementary information according to the screen configuration and the determination result, in the input video There is provided a video output method of determining to display the supplementary information based on the size of characters included in the character area.
- the present invention determines a character area from an input video, acquires a character string included in at least one character area as supplementary information from an external server, and defines a screen layout or scale for displaying at least one video.
- the video output apparatus and the video output method according to the present invention it is possible to change the display mode of the supplementary information according to the scaling factor of the display size of the input video. Therefore, even in the case of dividing a plurality of input videos into a screen, it is possible to complement as a supplementary information a portion where a character or symbol collapse occurs in the input video, and to prevent the absence of information that the user wants to know Can.
- FIG. 1 A diagram showing a display example when an image is assigned to each screen shown in FIG. 3
- Block diagram showing a video output device of the first embodiment and its related device (A)-(f) is a figure which shows the pattern of the full screen display which concerns on 1st Embodiment, and a two-screen display.
- a diagram showing an example of a screen configuration management table held by the screen configuration management unit 103 (A)-(f) is a figure which shows the example of a data structure of the screen configuration management table which the screen configuration management part 103 hold
- maintains A diagram showing a display example of the supplementary information screen in the two-screen display state C shown in FIG. 7 (e)
- a flowchart showing processing performed by the video output device 100 when displaying the supplementary information screen in response to the screen division request Flow chart showing supplementary information extraction processing Diagram showing character area and object area in input video 2 A diagram showing a character area table held by the supplementary information holding unit 113 A diagram showing an object area table held by the supplementary information holding unit 113 A flowchart showing the character area group definition process shown in step S213 in the flowchart of FIG.
- FIG. 7 Block diagram showing a video output apparatus of the second embodiment and its related apparatus Diagram showing screen configuration data provided by the supplemental information provision device A diagram showing a display example of supplementary information based on screen configuration data
- the video output apparatus is an apparatus for receiving contents such as a program or a commercial transmitted by a broadcasting station via a transmission station and displaying the contents on a display inside or outside the apparatus.
- FIG. 6 is a block diagram showing a video output apparatus and its related apparatus of the first embodiment. First, an outline of processing until the video output device displays the input video on the display will be described.
- the video output apparatus 100 includes an input unit 101, a terminal control unit 102, a screen configuration management unit 103, a video input unit 104, an application processing unit 105, a screen generation unit 106, and a composition.
- a section 107, an output section 108, an area determination section 112, a supplementary information storage section 113, and a supplementary information display determination section 115 are provided.
- the input unit 101 receives a control command signal from a remote control device (hereinafter referred to as “remote control”) attached to the video output device 100 or an externally connected device or the like, and transfers it to the terminal control unit 102.
- the terminal control unit 102 inquires of the screen configuration management unit 103 a screen configuration corresponding to the control command signal transferred from the input unit 101.
- the screen configuration is, for example, a configuration in which the channel viewed last is displayed on the full screen in accordance with the power on command of the video output device 100 or a program guide is displayed on the entire screen And so on.
- the screen configuration management unit 103 manages the configuration of the screen displayed on the display according to the control command.
- the screen configuration management unit 103 stores a screen configuration management table described later.
- the terminal control unit 102 transfers the program guide display instruction to the application processing unit 105.
- the application processing unit 105 can execute an application for realizing various functions in addition to the program guide display function. Further, the application processing unit 105 responds to the terminal control unit 102 with necessary processing (for example, displaying the current channel in a reduced size, etc.) according to the command input from the terminal control unit 102. Also, the application processing unit 105 provides the screen generation unit 106 with information necessary to generate a screen necessary for setting according to an instruction from the terminal control unit 102.
- the functions realized by the application that can be executed by the application processing unit 105 are, for example, a broadcast reception setting function, an image quality adjustment function, an alarm setting function, a calendar display function, a network connection setting function, etc. is there.
- the screen generation unit 106 performs a drawing process of basic parts (character strings, images, background colors, and the like) to be combined on the screen based on the information provided from the application processing unit 105.
- the video input unit 104 manages at least one video source to which the video output apparatus 100 can input, and transfers an input video obtained according to an instruction from the terminal control unit 102 to the synthesizing unit 107.
- the video input unit 104 includes, for example, a first tuner 109a, a second tuner 109b, an external input unit 109c, a communication unit 109d, decoders 110a to 110d, and processing units 111a to 111d. .
- the first tuner 109 a and the second tuner 109 b receive, via the antenna 200, contents such as programs and commercials that the broadcasting station 300 has sent via the sending station 400.
- the external input unit 109 c acquires the content output from the video providing device 500 such as a recorder having a recording medium or other video equipment.
- the communication unit 109 d receives the content transmitted from the video providing device 700 via the network 600.
- the decoders 110a to 110d decode signals from the corresponding first tuner 109a, second tuner 109b, external input unit 109c, or communication unit 109d, respectively.
- the processing units 111a to 111d use the image data from the corresponding decoders 110a to 110d, respectively, to change the color tone or scale of the image according to the instruction from the terminal control unit 102, and transfer the processed image to the synthesizing unit 107. Do.
- the synthesizing unit 107 synthesizes the video transferred from the video input unit 104 based on the setting of the screen configuration management unit 103, and outputs the synthesized video (hereinafter, simply referred to as “synthetic video”) to the output unit 108. . Specifically, the synthesizing unit 107 arranges each input image reduced by the processing units 111 a to 111 d to the scale requested by the terminal control unit 102 in the layout instructed by the application processing unit 105 to the screen configuration management unit 103. Compose based on the screen configuration.
- the output unit 108 displays the composite video on the display when the video output device 100 includes the display, and transfers the composite video to an external display when the video output device 100 does not include the display.
- FIGS. 7A to 7F are diagrams showing patterns of full screen display and two screen display according to the first embodiment.
- FIG. 8 is a diagram showing an example of the screen configuration management table held by the screen configuration management unit 103.
- FIG. 7A shows a state in which the input video 1 received by the first tuner 109a is displayed on the full screen of the display as an initial state (drama program only full screen display state).
- FIG. 7B when the user instructs a channel change using the remote control, the input video 1 received by the channel change of the first tuner 109a is displayed on the entire screen of the display by the channel change (base relay) Only show the full screen display state).
- FIG. 7C shows the channel (drama) previously selected as the input video 1 and the channel currently selected as the input video 2 (baseball relay) when the user instructs the two-screen display using the remote control. Shows a state in which the screen ratio is displayed as 1: 3 (two-screen display state A).
- FIG. 7D when the user operates the left and right buttons of the remote control to arbitrarily change the left and right screen ratios, the left screen ratio is increased and the left screen and right screen screen ratios are set to be the same.
- An example of display is shown. In the display example, it is determined that the user can not read the batter score (character string and symbol displayed at the upper left of the screen) of the baseball relay on the right screen (input video 2). For this reason, in the display example, the screen of the area indicating the batter score of the right screen (input video 2) is displayed in full size in the vicinity of the right screen (input video 2) as the supplementary information (two-screen display State B).
- FIG. 7E shows a display example in which the ratio of the left screen is set large.
- the display example it is determined that the user can not read the progress information (character strings and symbols displayed on the lower right of the screen) of the baseball relay on the right screen (input video 2) on the divided screen. Therefore, in the display example, in addition to the screen of the area indicating the batter score, the screen of the area indicating the progress information of the right screen (input video 2) is also included in the vicinity of the right screen (input video 2) as supplementary information. It is displayed in full size (two-screen display state C).
- FIG. 7F shows a display example in which the ratio of the left screen is maximized.
- the baseball relay on the right screen (input image 2) is minimized to a level at which it is possible to determine the general condition such as the batter hit.
- the screen of each area showing the batter score and the progress information is superimposed on a part of the left screen (input video 1) as supplementary information and displayed in full size (two-screen display state D).
- the previously selected channel is the input video 1
- the currently selected channel is the input video 2.
- the selection of the input video for the channel may be made by using the currently selected channel as the input video 1 received by the first tuner 109a and the channel last selected by the user in the second tuner 109b as the input video 2 .
- the user may select and change either left or right.
- the screen ratio at the time of instructing the two-screen display is not limited to one to three, and an arbitrary ratio may be set.
- the left and right screen ratios can be arbitrarily changed by operating the left and right buttons of the remote control, but any other input means such as a touch sensor or an acceleration sensor mounted on other buttons or remote control may be used.
- FIG. 7F shows an example in which the screen of each area showing batter scores and progress information which is supplementary information is superimposed on a part of the left screen (input video 1).
- the enlargement of the left screen may be controlled so that the screen showing the supplementary information is not superimposed on the left screen.
- the transparency of the screen showing the supplementary information may be lowered.
- the user can also check the input video 1 of the portion where the screens showing the supplementary information overlap.
- FIG. 8 shows a data configuration example of the screen configuration management table held by the screen configuration management unit 103 in the state shown in FIG. 7A.
- an input source an output flag, a width (W) indicating a screen drawing area, a height (H), and a horizontal axis drawing position (X) for each input video.
- the degree of transparency ( ⁇ ) is closer to transparency as it approaches 0.
- the state shown in FIG. 7A is a state in which only the input video 1 received by the first tuner 109a is displayed. Therefore, in the screen configuration management table at this time, only the output flag of the input video 1 is “true”, and the output flags of the other input videos are “false”.
- the width (W) is 1920
- the height (H) is 1080
- the drawing position (X) on the horizontal axis is 0,
- the drawing position (Y) on the vertical axis is 0.
- the parameters indicating the overlap between the input video 1 and the other video are 0 for depth (Z), 255 for transparency ( ⁇ ) of the input video 1, and 100% for the scale (R). In the case of such parameters, the input video 1 is displayed on the full screen on the display.
- FIGS. 9A to 9F show data configuration examples of the screen configuration management table corresponding to the display forms of FIGS. 7A to 7F. As shown in FIGS. 9A to 9F, when the screen configuration is different, the parameters of the screen configuration management table are different from each other in the output flag, the change of the screen composition ratio, and the scale.
- FIG. 10 is a view showing a display example of the supplementary information screen in the two-screen display state C shown in FIG. 7 (e).
- FIG. 11 is a diagram for explaining the screen elements shown in FIG.
- the display screen (1000/1100) is composed of two input video images.
- the left screen (1001) is screen 1 (1101) for displaying the input video 1
- the right screen (1002) is screen 2 (1102) for displaying the input video 2.
- the area (1003) indicating the batter score of the input video 2 (baseball relay) is reduced on the input video 2 and displayed on the screen 2 (1102), so that it is judged that the user can not read. I assume.
- the portion where the supplementary information object area SA1 is cut out and displayed is taken as the supplementary information screen 1 (1005/1105), and the part where the supplementary information object area SA2 is cut out and displayed is the supplementary information screen 2 (1006). / 1106). Furthermore, in the “emphasis expression section” (1007/1107) indicating that it is the supplementary information screen, the shadow (drop shadow) displayed in the outer frame of the supplementary information screen 2 (1006) or the supplementary information screen 2 (1006) Display symbols such as stars displayed on the left side of). In FIGS. 10 and 11, dotted lines are displayed from the supplementary information object area SA1 to the supplementary information screen 1 and from the supplementary information object area SA2 to the supplementary information screen 2.
- This dotted line is shown as a guideline for indicating to the user "which area information is enlarged and displayed."
- the dotted line as a guideline shows an example, and as long as it can be determined which area is shown, it may be an arrow, solid line, color or shade.
- FIG. 12 is a flowchart showing processing performed by the video output device 100 when displaying the supplementary information screen in response to the screen division request.
- the input unit 101 receives an instruction signal of "screen division mode request" from the remote control, and the screen configuration management unit 103 is received via the terminal control unit 102. Transfer the instruction.
- the screen configuration management unit 103 sets the screen division number (N) to “2” as initialization processing of the screen division mode processing, and determines the screen ratio at the time of display (for example, fixed magnification 1: 3 as an initial value). .
- the screen configuration management unit 103 instructs the video input unit 104 via the terminal control unit 102 to output the input video 1 and the input video 2 to the first tuner 109 a and the second tuner 109 b. Further, the screen configuration management unit 103 instructs the processing unit 111a and the processing unit 111b to reduce each input video so as to have a fixed magnification (1: 3) via the terminal control unit 102 (step S101).
- the initial value of the screen ratio of screen division is set to the fixed magnification (1: 3), but the user may optionally designate the desired magnification in advance as the fixed magnification (1: 1). .
- the screen division number (N) is “2” in the above description, the screen division number may be two or more, and the screen ratio may also be set freely.
- the screen configuration management unit 103 ends the screen division mode process (Y in step S102). On the other hand, if the screen division mode is continued, the screen configuration management unit 103 continues the process (N in step S102).
- a signal received by the second tuner 109b of the video input unit 101 via the antenna 200 is decoded by the decoder 110b.
- the decoder 110 b transfers the input video obtained by the decoding to the area determination unit 112.
- the area determination unit 112 executes supplemental information extraction processing on the input video transferred from the decoder 110 b (step S 103). Details of this process will be described later.
- the region determination unit 112 stores the extracted supplemental information in the supplemental information storage unit 113 when there is a character region to be supplemental information and the supplemental information is extracted. Then, if there is supplemental information in the input video (Y at step S104) and the predetermined determination condition is satisfied (Y at step S105), the supplemental information display determination unit 115 sets supplemental information on the input video (maximum The screen configuration management unit 103 is instructed to superimpose display on the designated position of the upper layer (step S106). By the instruction, the supplementary information screen 1 (1005) and the supplementary information screen 2 (1006) shown in FIG. 10 are displayed on the display.
- the determination condition used in step S105 is that “the appearance frequency of supplemental information is equal to or higher than a predetermined appearance frequency threshold (for example, 50%)” and “character size of extracted supplemental information ⁇ current input video”
- the scaling factor is equal to or less than a predetermined character size threshold (for example, 12 points).
- the supplementary information display determination unit 115 Change the change flag to "true” status. Then, when the change flag is “true” (Y in step S107), the supplemental information display determination unit 115 additionally displays a highlighted expression with respect to the displayed supplemental information (step S108). That is, in the highlighting by the supplementary information display determination unit 115, a symbol (1007) such as a shadow or an asterisk of the outer frame of the supplementary information screen 2 (1006) shown in FIG. 10 is displayed. On the other hand, when the change flag is "false", the supplementary information display determination unit 115 proceeds to the next process without displaying the emphasizing expression (N in step S107).
- the supplemental information display determination unit 115 manages the “guideline display mode” as the setting that can be changed by the user.
- the supplementary information display determination unit 115 displays a guideline connecting the supplementary information target area of the input video and the supplementary information screen by dotted lines (step S110).
- the guideline display mode is not set, the supplementary information display determination unit 115 proceeds to the next process without displaying the guideline (N in step S109).
- the extraction process of the supplementary information 1 and the supplementary information 2 for the input video 2, the emphasizing expression attached to the supplementary information screen 2, and the process of determining the components of the guideline display have been described.
- the display determination processing of the supplementary information 1 and the supplementary information 2 has been described at the same time to simplify the description, the display determination processing for the supplementary information 1 and the supplementary information 2 is performed as shown in steps S111 and S112 of the flowchart shown in FIG. Is performed sequentially.
- the display determination process of the input video 1 is performed after the display determination process of the input video 2. Note that the order of the display determination processing does not matter here because it depends on the implementation.
- step S114 when the display determination process on the input video 1 has not been executed (N in step S114), the process returns to the process of step S103 on the input video 1.
- the input video 1 shown in FIG. 10 since there is no character area suitable as supplementary information, no supplementary information is extracted even if the processing in step S103 is performed, so it is determined in step S104 that there is no supplementary information N in step S104).
- the video output device 100 repeats the processes in steps S103 to S115 in order to update the supplementary information.
- the screen configuration management unit 103 displays the entire input video (for example, the input video 1) of any one. Therefore, the screen configuration management unit 103 instructs the processing unit 111 a of the video input unit 104 to change the scale via the terminal control unit 102 and instructs the combining unit 107 to change the screen configuration. As a result, the screen shown in FIG. 7A is displayed on the display (step S116).
- FIG. 13 is a flowchart showing the supplementary information extraction process.
- FIG. 14 is a diagram showing a character area and an object area in the input video 2.
- FIG. 15 is a diagram showing a character area table held by the supplementary information holding unit 113.
- FIG. 16 is a diagram showing an object area table held by the supplementary information holding unit 113.
- FIG. 18 is a view showing the superimposed state of the character area and the object area in the input video 2.
- the decoder 110b decodes the signal received by the second tuner 109b of the video input unit 104, and detects the presence or absence of the character area in the obtained input video 2 (step S201).
- a widely known existing technology such as a method of extracting a text portion using a difference in luminance is used.
- step S202 When the area determination unit 112 detects a character area (Y in step S202), the area determination unit 112 determines that “a character area is present”, and internally holds the state (step S203). On the other hand, when the character area is not detected (N in step S202), the area determination unit 112 determines “no character area” and ends the process (step S204).
- the area determination unit 112 inquires of the supplementary information storage unit 113 whether there is a character area table for the input video (step S205). If the response from the supplementary information storage unit 113 is “no character area table exists” (N in step S205), the area determination unit 112 requests the supplementary information storage unit 113 to create a new character area table (step S206). ). On the other hand, if the response from the supplementary information storage unit 113 is "character area table exists" (Y in step S205), the area determination unit 112 compares the extracted character string with the previous character string, and retains the supplementary information The character area table of the unit 113 is updated (step S207).
- the area determination unit 112 determines and extracts the following part as a character area.
- the extracted character area is, for example, “S2 (1401)” “B3 (1402)” and “O2 (1403)” shown at the upper left of the screen (1400), “9th shown at the lower right of the screen (1400) And “2-3 (1405)” and a portion of “142 Km / h” shown in the upper right of the screen (1400).
- the area determination unit 112 stores information on the character area in the character area table of the supplementary information storage unit 113 (step S208).
- the character area table contains information such as extracted character strings in each character area, character size (point), width (W), height (H), horizontal axis (X) and vertical axis (Y) indicating the position on the screen. Is recorded.
- the area determination unit 112 detects an object that is not a character such as a symbol or a mark displayed on the screen (1400) of FIG. 14 and the screen (1800) of FIG. 18 as an object area.
- the object area to be detected is the symbol (1407/1807) indicating the baseball diamond on the upper left of the screen (1400/1800), the logo (1408/1808) indicating the baseball team on the lower right of the screen (1400/1800) And 1409/1809), pitcher (1410/1810) standing on the mound on the lower left of the screen (1400/1800), and referee and batter (1411/1811 and 1412/1812) on the upper right of the screen (1400/1800), etc. is there.
- the area determination unit 112 When the area determination unit 112 detects an object area (Y in step S209), the area determination unit 112 inquires the supplemental information storage unit 113 whether an object area table for the input video exists (step S209). If the response from the supplementary information holding unit 113 is “the object area table does not exist” (N in step S209), the area determination unit 112 requests the supplementary information holding unit 113 to create a new object area table (step S210). ). On the other hand, if the response from the supplementary information storage unit 113 is “the object area table exists” (Y in step S 209), the area determination unit 112 compares the extracted object with the previous object, and the supplementary information storage unit 113 The object area table of is updated (step S211).
- the area determination unit 112 records, for example, an object area table as shown in FIG. 16 in the supplementary information storage unit 113 (step S212).
- the object area table records information such as object ID, width (W) of each object area, height (H), horizontal axis (X) indicating position on the screen, and vertical axis (Y).
- FIG. 17 is a flowchart showing the character area group definition process shown in step S213 in the flowchart of FIG. FIG. 18 corresponds to the character area table and the object area of the screen shown in FIG. 14 by the character area table held by the supplementary information holding unit 113 and the IDs (T. * and Oj. *) Managed by the object area table.
- FIG. FIG. 19 shows a character area group table held by the supplementary information holding unit 113.
- FIG. 20 is a diagram showing a superimposed state detection pattern.
- FIG. 21 is a diagram showing an example of the margin width used for internal processing.
- character area group means a group for treating, among a plurality of extracted character areas, overlapping ones as one information unit. In the first embodiment, it is determined that "T.1 / T.2 / T.3" and “T.4 / T.5" overlap each other, and “T.6” is another character area. It is determined that there is no overlap with. The definition of three character area groups in this manner will be described below.
- the area determination unit 112 inquires the supplementary information storage unit 113 whether a character area group table for the input video exists. If the response from the supplementary information storage unit 113 is “no character area group table exists” (N in step S301), the area determination unit 112 requests the supplementary information storage unit 113 to create a new character area group table ( Step S302). On the other hand, when the response from the supplementary information holding unit 113 is “character area group table exists” (Y in step S301), the area determination unit 112 holds the character area group table held by the supplementary information holding unit 113 (FIG. 19). Refer to).
- the area determination unit 112 refers to the character area table shown in FIG. 15 held by the supplementary information holding unit 113 and adds a superposition detection margin to all the character areas (T. *) in order to detect the superposition state Step S303).
- a margin width pixel unit which changes in accordance with the scale of the input video as shown in FIG. 21 is set in advance. For example, assuming that the margin width when the scale factor of the input image is 25% is 10 pixels, the margin for overlap detection is calculated from the following formula.
- FIG. 20 is a diagram showing a pattern when detecting the overlapping state of the area n and the area n + 1.
- there are four sides of “a” to “d” in the area n and it is necessary to confirm the overlapping state with the area n + 1 to be investigated on all the four sides.
- S2 (1401)” and “B3 (1402)” extracted from the input image 2 shown in FIG. 14, that is, the screen (1800) in FIG. Of “T.1 (1801)” and “T.2 (1802)”, “the overlap between the lower side of T.1 (1801) and the upper side of T.2 (1802)” will be described. Note that, in FIG. Vertex T.1 (area n).
- the algorithm for detecting the overlap of the objects dispersed in the two-dimensional plane is not limited to that shown in the first embodiment, and other methods may be used.
- the area determination unit 112 determines whether the current survey target T.1. 1 and T.1. For the character area after adding a margin to each of the upper side of 2, the overlap is detected using the following formula.
- T. n (Xc) T. n (X) + T. n (W)
- m n + 1, T. n is T. 1, T.I. m is T. 2 shall be shown.
- Xc is T.I. Horizontal axis (X) at vertex c of 1; The horizontal axis (X) at the vertex d of 1 and “T.m (Y)” is T.1. The numerical value of the vertical axis (Y) at the vertex a (or b) of 2 is substituted (step S304).
- the area determination unit 112 determines whether T.I. 1 and T.1. In order to determine the overlap of the upper side of 2, the following determination formula is used. ⁇ T. m (X) ⁇ T. n (Xc) ⁇ T. m (X) + T. m (W) or T.I. m (X) ⁇ T. n (Xd) ⁇ T. m (X) + T. m (W) ⁇ And 0 ⁇ ⁇ T. n (Y) ⁇ margin width threshold (10)
- the area determination unit 112 refers to the character area group table of the supplementary information storage unit 113. If the area determination unit 112 determines that “the character area ID (T. n) exists in the previous superposition ID” or “the character area ID (T. n) exists in the latest superposition ID” (Y in step S 306) And the character area ID (T. n and T. m) are recorded in the latest superposition ID with reference to the existing character area group (step S 307). If it is determined in step S306 that “a character area ID (T.
- the area determination unit 112 newly defines a character area group, Character area IDs (T. n and T. m) are recorded in the latest superposition ID (step S 308).
- the region determination unit 112 determines that the T.I. 1 and T.1. It is determined that the upper side of 2 is not in the overlapping state, and the character area group table held by the supplementary information holding unit 113 is referred to. If the area determination unit 112 determines that "the character area ID (T. n) is recorded in the previous superposition ID" (Y in step S309), the existing character area group is referred to, and the character is used for the latest superposition ID. Only the area ID (T. n) is recorded (step S310). On the other hand, when it is determined in step S309 that "the character area ID (T. n) is not recorded in the previous superposition ID" (N in step S309), the area determination unit 112 newly defines a character area group. Only the character area ID (T. n) is recorded in the latest superposition ID (step S311).
- the area determination unit 112 determines the smallest character size (pt) of the latest superposition IDs (T. *) to which each character area group (Tx. *) Of the character area group table held by the supplementary information holding unit 113 refers. : Calculate and record point unit) (step S316). Furthermore, the area determination unit 112 calculates a rectangle including each character area in the latest superposition ID (T. *) to which each character area group (Tx. *) Refers, and records the rectangle in the character area group table (step S317). Thus, the character area group table as shown in FIG. 19 is completed.
- FIG. 22 is a flowchart showing the supplementary information definition process shown in step S214 in the flowchart of FIG.
- FIG. 23 shows the definition of the character area group area and the supplementary information area in the input video 2. Also, FIG. 23 shows IDs (the character area group table and the object area table held by the supplementary information holding unit 113) of the character area group, the object area, and the supplementary information of the screen shown in FIG. 14 and FIG. It is the figure which matched by Tx. *, Oj. *, SA- *).
- FIG. 24 is a diagram showing a supplementary information table which the supplementary information holding unit 113 holds.
- the supplementary information definition process shown in step S214 of FIG. 13 will be described.
- the "supplemental information” is a unit of information based on the extracted character area group, and among them, those which overlap with the object area can be treated collectively as one information unit.
- “Tx. 1 (2301)” of the screen (2300) is supplementary information 1 (SA-1: 2310) having an overlap with “Oj. 1 (2304)”
- “Tx. 2 (2302) is determined as supplemental information 2 (SA-2: 2311) overlapping with "Oj. 5 (2308)” and "Oj. 6 (2309)”.
- “Tx. 3 (2303)” is determined to be supplementary information 3 (SA-3: 2312) having no overlap with other object areas. It is explained below that three supplementary information are defined in this way.
- the area determination unit 112 inquires the supplementary information storage unit 113 whether there is a supplementary information table for the input video. If the response from the supplementary information storage unit 113 is “No supplementary information table exists” (N in step S401), the area determination unit 112 requests the supplementary information storage unit 113 to create a new supplementary information table (step S402). ). On the other hand, when the response from the supplementary information holding unit 113 is "character area group table exists" (Y in step S401), the area judging unit 112 holds the supplementary information table held by the supplementary information holding unit 113 (FIG. 24). Refer to
- the area judgment unit 112 refers to the character area group table and the object area table held by the supplementary information holding unit 113, and has a margin for superposition detection in all object area groups (Oj. *) In order to detect the superposition state.
- Add step S403.
- a margin width pixel unit which changes in accordance with the scale of the input video as shown in FIG. 21 is set in advance. For example, assuming that the margin width when the scale factor of the input image is 25% is 10 pixels, the margin for overlap detection is calculated from the following formula.
- Tx. 1 (2301)” and “Oj. 1 (2304)” shown in FIG. The explanation will be focused on the overlap between the right side of 1 and the left side of Oj.1. That is, in FIG. 1 (area n) on the right side Tx. 1b and Tx. 1c, Oj. 1 (area n + 1) on the left side Oj. 1a and Oj. Only the portion overlapping with 1 d will be described, and the description of the other overlapping portions will be omitted.
- the area determination unit 112 uses the Tx. 1 and the Oj. For the object area after adding a margin to each of the left side of 1, the overlap is detected using the following formula.
- m 1 and Tx.
- n Tx. 1
- Oj. m Oj.
- Yb Tx.
- the vertical axis (Y) at the vertex b of 1 and “Yc” are Tx.
- the vertical axis (Y) at the vertex c of 1 and “Oj.m (X)” is Oj. It is assumed that the numerical value of the horizontal axis (X) at the vertex a (or d) of 1 is substituted (step S404).
- the area determination unit 112 determines whether Tx. 1 and the Oj. In order to determine the overlap of the left side of 1, the following determination formula is used. ⁇ Oj. m (Y) ⁇ Tx. n (Yb) ⁇ Oj. m (Y) + Oj. m (H) or Oj. m (Y) ⁇ Tx. n (Yc) ⁇ Oj. m (Y) + Oj. m (H) ⁇ And 0 ⁇ ⁇ Tx. n (X) ⁇ margin width threshold (10)
- the area determination unit 112 refers to the supplementary information table held by the supplementary information holding unit 113. If the area determination unit 112 determines that “the character area group (Tx. N) is recorded in the parent ID” (Y in step S406), the area area determination unit 112 refers to the existing supplementary information, and the object area ID (Oj. m) is recorded, and the superposition flag is set to "true” (step S407). If it is determined in step S406 that “the character area group (Tx. N) is not recorded in the parent ID” (N in step S406), the area determination unit 112 newly defines supplemental information, The object area ID (Oj.m) is recorded, and the superimposition flag is set to "true” (step S408).
- the area determination unit 112 determines that Tx. 1 and the Oj. It is determined that the left side of 1 is not in the overlapping state, and the supplementary information table held by the supplementary information holding unit 113 is referred to. If the area determination unit 112 determines that “the character area group (Tx. N) is recorded in the parent ID” (Y in step S 409), the area area determination unit 112 refers to the existing supplementary information, and the object area ID (Oj. m) is recorded, and the superposition flag is set to "false” (step S410). On the other hand, when it is determined in step S409 that "the character area group (Tx. N) is not recorded in the parent ID" (N in step S409), the area determination unit 112 newly defines supplemental information, The object area ID (Oj.m) is recorded, and the superimposition flag is set to "false” (step S411).
- the area determination unit 112 sequentially confirms the superimposed state with respect to the character area group (Tx. N + 1) to be examined next (N in steps S 415 and S 416). Finally, the area determination unit 112 confirms the superimposed state of all the character area groups on the input video (Y in step S416). After that, the area determination unit 112 calculates a rectangle that includes the overlap between each character area group (Tx. *) Held by the supplementary information holding unit 113 and the object area (Oj. *) To be superimposed, and the supplementary information table (Step S417). Thus, the character area group table as shown in FIG. 24 is completed.
- the area determination unit 112 performs the processing according to the flowcharts shown in FIGS. 12, 13, 17 and 22 to create or update the supplementary information table shown in FIG. It is held by the holding unit 113. Since the area determination unit 112 repeats the process for each waiting time (Tw seconds), the content of the supplementary information is updated following the change of the input video, and the screen as shown in FIG. 10 continues on the display. Is displayed.
- FIG. 25 is a diagram showing the supplementary information display determination criteria according to the scale of the input video and the state of the screen division mode.
- the supplementary information is displayed only when the predetermined determination condition is satisfied in step S105 illustrated in the flowchart of FIG.
- the predetermined determination condition is, as described above, that the “frequency of occurrence (%)” recorded in the supplementary information table held by the supplementary information holding unit 113 is “the threshold of appearance frequency (for example, 50%)” or more and
- the “character size” ⁇ “the current input video scale factor” recorded in the character area group table is equal to or less than the “character threshold (for example, 12 points)”.
- the former condition in the supplementary information display determination criteria is for judging that the character string displayed for a certain period of time with respect to the input video is supplementary information intended by a program provider company such as a broadcasting station.
- a program provider company such as a broadcasting station.
- the condition for example, information that is not necessarily required when the screen is divided, such as a character string displayed suddenly and in a single shot, such as a television commercial, or notification information introduced in a baseball game. It can be prevented from displaying as supplementary information.
- SA-3 ball speed of pitcher for baseball relay
- the supplementary information display determination unit 115 uses the supplementary information 3 as the supplementary information. It is determined that the condition of is not satisfied.
- the latter condition in the supplementary information display determination criteria is determined to be displayed as supplementary information only when the displayed character string is determined to be unreadable by the user when the input video is displayed in a reduced size. It is for.
- the display of the supplementary information is displayed with 100% of the input video as the initial state as shown in FIG. 25 with respect to the “two-screen display states A to D” shown in FIGS.
- the character size of the place where it is done is as follows.
- the character size of character area group 1 (Tx. 1) is “18 points”
- the character size of character area group 2 (Tx. 2) is “26 points”.
- the scale factor of the input image 2 is "75%”
- the character size of the character area group 1 (Tx. 1) is “around 14 points”
- the character size of 2) is “around 19 points” and exceeds the threshold (12 points), so it is determined that the user is readable and the supplementary information is not displayed (FIG. 7C).
- the supplemental information display determination unit 115 starts displaying the supplemental information Do.
- the character size of the character area group 2 (Tx. 2) slightly exceeds the threshold (12 points) (see FIG. 7 (d)
- the character size of the character area group 2 (Tx. 2) is set to a threshold value (12 points) before reaching the “two-screen display state C”. Since it is less than this, in the "two-screen display state C", the supplementary information 2 is also displayed (Fig. 7 (e). Thereafter, after the "two-screen display state D", the character area group 1 is reached). Since the character sizes of and 2 are both below the threshold (12 points), the supplemental information 1 and 2 will continue to be displayed (FIG. 7 (f)).
- “display supplemental information with an appearance frequency of“ 50% ”or more” is displayed, but the user may freely change this determination criterion.
- “12 points” is taken as an example of the threshold of the character size to be determined, there is individual difference in the character size that the user can not read, so the user may be able to change it freely.
- display character strings such as font size settings such as menu screens managed by the terminal system, font size settings of the browser installed on the terminal, and font size settings (the size set at the end) of the EPG installed on the terminal.
- a threshold value of the character size for determining the display may be determined.
- FIG. 26 is a diagram showing an example of the factors for determining the display place of the supplementary information.
- FIG. 27 is a diagram showing an example of the layout configuration of the display screen.
- supplemental information 1 SA-1: 2601
- supplemental information 2 SA-2: 2602
- supplemental information 3 SA-3: 2603
- the area from the first quadrant to the fourth quadrant obtained by dividing the screen into four is defined, and the supplementary information display determination unit 115 determines which quadrant each supplementary information belongs to, Determine the approximate display position of supplementary information.
- supplementary information 1 SA-1 belongs to the second quadrant
- supplementary information 2 SA-2
- supplementary information 3 SA-3 belongs to the first quadrant. It will belong.
- FIG. 27 shows the screen layout configuration of the "two-screen display state C" shown in FIG. 7 (e).
- the supplementary information display determination unit 115 determines the display position of the supplementary information in step S106 shown in the flowchart of FIG. 12 and transfers the supplementary information to the screen configuration management unit 103 as a screen layout configuration.
- supplemental information 1 (SA-1) included in the input video 2 displayed on the screen 2 is located in the second quadrant as shown in FIG.
- SA-1 Supplemental information 1
- FIG. 27 shows a predetermined display margin from the boundary between the screen 1 and the screen 2 and the original size is displayed on the upper side of the screen 2 with left alignment.
- FIG. 27 shows the screen layout configuration of the "two-screen display state C" shown in FIG. 7 (e).
- the supplemental information 2 (SA-2) included in the input video 2 displayed on the screen 2 is located in the fourth quadrant. Therefore, in FIG. 27, the display margin is subtracted from the right end of the display frame instead of the boundary between the screen 1 and the screen 2, and the original is displayed right-justified below the screen 2.
- the composition ratio of screen division is 3: 1, and the border line between screen 1 and screen 2 is centered at the boundary, but the display method is not limited to this.
- a display margin may be prepared between screens, or a frame may be added to each screen.
- the supplementary information is displayed in full size (that is, a form in which a part is cut out from 100% display of the input video), but enlargement or reduction may be freely selected by the user. Further, the supplementary information may be automatically changed in scale in conjunction with the layout configuration of the screen.
- the screen configuration management unit 103 mutually refers to the area of the supplementary information held in association with the input video and displays the supplementary information in the input video 2, the screen configuration management section 103 places the character area group in the input video 1. You may perform the process which considered. Specifically, the processing that changes the position or the display size of the supplementary information so as not to superimpose the supplementary information of the input video 2 on the character area group of the input video 1, or does not display the supplementary information It is.
- a program for example, drama or baseball relay
- the input channel and format are not limited to broadcast programs, but include stored programs that other devices accumulate by recording etc., videos taken by individuals, video clips created by third parties, and videos delivered via a network. It doesn't matter.
- the supplementary information held by the supplementary information holding unit 113 is an example in which the supplementary information display determination unit 115 determines the presence / absence of display in the condition determination (step S105) illustrated in FIG.
- the supplemental information display determination unit 115 may compare with text data such as a program summary accompanying the broadcast, and may add condition determination such as displaying supplemental information only when the content matches.
- the video output apparatus 100 dynamically manages the drawing position and drawing size of at least one input video, and it is determined that the character string is crushed in the reduced input video. To automatically zoom in on the selected area as supplementary information.
- the number of operations by the user necessary for the enlarged display can be reduced, and the user can easily prevent the opportunity loss of information recognition by presenting easy-to-understand information with readable character size.
- the supplemental information is displayed in an unused area (for example, a portion that becomes a black band at the time of split into two screens) other than the reduced displayed screen.
- the free space of the screen can be effectively used without disturbing the video to be watched in the main.
- the supplemental information is displayed at a position close to the character area that is the reference source of the supplemental information in the reduced displayed screen.
- the area serving as a reference source of the supplemental information and the supplemental information area displayed in an enlarged manner are visually associated with a guideline.
- the user can intuitively determine which information is enlarged and displayed, and can provide easy-to-understand information.
- the display position of the supplemental information is determined in consideration of which position of the video the character area is located. As a result, it is possible to prevent the display of the character area on the video from being hidden in advance without superimposing supplementary information or another video on the character area on the video.
- the supplemental information of the character area determined to be the smallest in the character area group including the plurality of character areas is automatically displayed with priority. Accordingly, in the present embodiment, it is possible to provide, as supplementary information, character string information that is the most difficult to see among character information that has been smashed by image reduction, without requiring an extra operation for the user.
- supplemental information display is prevented in advance by a character string that is displayed suddenly and in a single shot in a caption supermarket displayed momentarily, a signboard accidentally caught in a video, a commercial, etc. It is possible to suppress the occurrence of screen flicker that may occur.
- the change of the extracted character string is determined, and the change of the supplementary information is notified on the screen as a highlighted expression.
- the present embodiment can intuitively recognize the state change in the reduced screen by the visual highlighting provided automatically, without the user having to always pay attention to the change of the supplementary information. .
- the present embodiment among the supplemental information extracted from the video, the supplemental information that matches the incidental information attached to the video is preferentially displayed. In this way, the present embodiment can prevent in advance the display of a character area that does not directly follow the content of the video, such as a character string of a signboard or the like that is accidentally shown in the video.
- the text area and the object area are extracted from the input video, and when each text area overlaps the object area, the area is cut out as one supplementary information, and the screen configuration is made according to the scale of the input video
- the case has been shown in which the supplementary information is superimposed and displayed on an empty area of the screen layout configuration managed by the management unit 103.
- the supplemental information extracted by the area determination unit 112 of the video output device 100 but also the supplemental information acquired from an external server via the network 600 and displayed Will be explained.
- FIG. 28 is a block diagram showing a video output apparatus and its related apparatus of the second embodiment.
- the internal configuration of the video input unit 104 of the video output apparatus 100 is not shown.
- FIG. 29 is a diagram showing screen configuration data provided by the supplementary information provision device.
- FIG. 30 is a diagram showing a display example of supplementary information based on screen configuration data.
- the video output device 100 of this embodiment has the same configuration as the video output device 100 of the first embodiment shown in FIG. In FIG. 28, the main difference from the first embodiment shown in FIG. 6 is that the communication unit 109 d connected to the network 600 is connected to the screen configuration management unit 103, and as an external server connected to the network 600 The point is that the supplementary information provision device 800 is added. Since the configuration other than the above is the same as that of FIG. 6, the same parts as those in FIG.
- the screen configuration management unit 103 performs screen configuration via the communication unit 109 d as needed for the supplementary information providing device 800 associated with the input video displayed by the output unit 108 via the combining unit 107. Request to get data.
- the supplemental information provision device 800 has a screen configuration as shown in FIG. 29 in which the display position of the supplemental information in the screen configuration of the input video being viewed by the video output device 100 is described according to the request from the video output device 100. Reply the data.
- the screen configuration management unit 103 analyzes the screen configuration data acquired via the communication unit 109d, and determines in which region the supplementary information is displayed for the input video.
- supplementary information 1 to 3 For example, in the case of the input video 2 (baseball relay) used in the description of the first embodiment, three pieces of supplementary information 1 to 3 are defined as shown in FIG.
- a batter score (RP-1), progress information (RP-2), and a ball speed (RP-3) exist, and each has a width (a position where the supplementary information is displayed). W), height (H), horizontal axis (X), vertical axis (Y) information is described.
- supplementary information URL Uniform Resource Locator
- the supplementary information URL can be acquired through the network 600 by preparing supplementary information in advance by the supplementary information providing device 800 in addition to the information on the position where the supplementary information is displayed.
- the case where the language setting is selected as Japanese as one of the profiles that can be arbitrarily selected by the user operating the video output device 100 will be described.
- the profile including the language setting is recorded in the screen configuration management unit 103 or a recording medium (not shown) included in the video output apparatus of the present embodiment. It is assumed that the progress information (RP-2) and the ball speed (RP-3) in the baseball relay of the input video 2 are in English, for example.
- the screen configuration management unit 103 acquires the “Japanese version of the supplementary information” provided by the supplementary information providing apparatus 800 according to the above language setting using the supplementary information URL, and displays the superimposed information on the input video as the supplementary information. . For example, as shown in FIG.
- the display area of supplemental information 1 to 3 (3001 to 3003) intended by the broadcast station on the screen (3000) can be determined by the screen configuration data. Also, the screen configuration management unit 103 displays the portion displayed as "9th" in the original input video 2 as “9 times” and "142 Km / h" by the image acquired using the supplementary information URL. The part is displayed as "142 km / h”.
- the image is acquired by the supplemental information URL, it may be a method of acquiring a text or a moving image distributed by streaming.
- the screen configuration data acquired from the supplementary information providing apparatus 800 via the network 600 is an outline of supplementary information intended by a program provider such as a broadcasting station, position information of a display area, and supplementary information.
- a program provider such as a broadcasting station
- position information of a display area and supplementary information.
- An example including the supplementary information URL to the supplementary information provided by the information providing apparatus 800 has been shown.
- the information to be included is not limited to this, and may include related information and a URL for accessing the related information, a secondary voice that can be acquired via the network 600, and the like.
- the user can change the setting of the supplemental information provision device 800 by one of the application processing units 105 of the video output device 100 or the browser of a personal computer. When changing this setting, the display position of the supplementary information for the input video, or the relative display position of the supplementary information for the screen (3000) when the input screen is reduced (or the input video is divided), It may be changed as a display designation area.
- the supplemental information is selected and displayed according to the profile of the user from among the plurality of types of supplemental information. Therefore, in the video output apparatus in which Japanese is set as the language setting, the Japanese version of the supplementary information is displayed.
- the screen configuration management unit 103 may translate the supplementary information into different languages. For example, the screen configuration management unit 103 translates the text extracted as English into Japanese according to the English-Japanese dictionary and displays it. As described above, in the present embodiment, supplemental display according to the language setting selected by the user is possible.
- the video output device may extract and display a video as supplemental information using the supplemental information area included in the supplemental information area pattern data acquired from the outside of the video output device.
- the supplementary information area pattern data is data indicating the position of the supplementary information area in the input video. In this case, the processing load of the video output device necessary for calculation of the supplemental information area is reduced, and the video output device can reliably specify the supplemental information area intended by the video producer.
- the video output device may display the supplemental information in accordance with the supplemental information display designation area included in the screen configuration data acquired from the outside of the video output device. In this case, the processing load of the video output device necessary for calculating the display position and size of the supplemental information is reduced, and the video output device can reliably display the supplemental information in the designated area intended by the user.
- the present invention is not limited to the first and second embodiments described above. The following cases are also included in the present invention.
- Each of the above-described devices is specifically a computer system including a microprocessor, a ROM, a RAM, a hard disk unit, a display unit, a keyboard, a mouse and the like.
- a computer program is stored in the RAM or the hard disk unit.
- Each device achieves its function by the microprocessor operating according to the computer program.
- the computer program is configured by combining a plurality of instruction codes indicating instructions to the computer in order to achieve a predetermined function.
- the system LSI is a super-multifunctional LSI manufactured by integrating a plurality of components on one chip, and more specifically, a computer system including a microprocessor, a ROM, a RAM, and the like. . A computer program is stored in the RAM. The system LSI achieves its functions as the microprocessor operates in accordance with the computer program.
- the IC card or the module is a computer system including a microprocessor, a ROM, a RAM, and the like.
- the IC card or the module may include the super multifunctional LSI described above.
- the IC card or the module achieves its function by the microprocessor operating according to the computer program.
- the present invention may be the method shown above. Also, these methods may be computer programs implemented by a computer.
- the computer program or the digital signal may be recorded in a computer readable recording medium, such as a flexible disk, a hard disk, an optical disk, a semiconductor memory, or the like.
- the computer program may be transmitted via a telecommunication line, a wireless or wired communication line, a network typified by the Internet, data broadcasting, and the like.
- the present invention may be a computer system comprising a microprocessor and a memory, wherein the memory stores the computer program, and the microprocessor operates according to the computer program.
- the video output apparatus can be applied to a digital television receiver, a digital video disc recorder, a set top box, a projector, an external monitor, a personal computer for outputting video to the outside, a mobile device having a video display output function, etc. .
- video output device 101 input unit 102 terminal control unit 103 screen configuration management unit 104 video input unit 105 application processing unit 106 screen generation unit 107 synthesis unit 108 output unit 109 a first tuner 109 b second tuner 109 c external input unit 109 d communication unit 110 Decoder 111 Processing Unit 112 Area Determination Unit 113 Supplemental Information Holding Unit 115 Supplemental Information Display Determination Unit 200 Antenna 300 Broadcast Station 400 Transmission Station 500 Video Providing Device A 600 Network 700 Image Providing Device B 800 Supplemental Information Providing Device
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Abstract
Description
図6は、第1の実施形態の映像出力装置及びその関連装置を示すブロック図である。まず、当該映像出力装置が入力映像をディスプレイに表示するまでの処理概要を説明する。
高さ(H)=高さ(H)+上マージン(10)+下マージン(10)
横軸(X)=横軸(X)-左マージン(10)
縦軸(Y)=縦軸(Y)-上マージン(10)
T.n(Xd)=T.n(X)
ΔT.n(Y)={T.n(Y)+T.n(H)}-T.m(Y)
{T.m(X)≦T.n(Xc)≦T.m(X)+T.m(W)、またはT.m(X)≦T.n(Xd)≦T.m(X)+T.m(W)}
かつ
0≦ΔT.n(Y)≦マージン幅閾値(10)
高さ(H)=高さ(H)+上マージン(10)+下マージン(10)
横軸(X)=横軸(X)-左マージン(10)
縦軸(Y)=縦軸(Y)-上マージン(10)
Tx.n(Yc)=Tx.n(Y)+Tx.n(H)
ΔTx.n(X)={Tx.n(X)+Tx.n(W)}-Oj.m(X)
{Oj.m(Y)≦ Tx.n(Yb)≦ Oj.m(Y)+Oj.m(H)、またはOj.m(Y)≦Tx.n(Yc)≦Oj.m(Y)+Oj.m(H)}
かつ
0≦ΔTx.n(X)≦ マージン幅閾値(10)
第1の実施形態では、入力映像から文字領域及びオブジェクト領域を抽出し、各文字領域がオブジェクト領域と重なる場合には、ひとつの補足情報として領域を切り出し、入力映像の縮尺率に応じて画面構成管理部103が管理する画面レイアウト構成の空き領域に、前記補足情報を重畳して表示するケースを示した。第2の実施形態では、映像出力装置100の領域判定部112が抽出した補足情報に限らず、映像出力装置100がネットワーク600を介して、外部にあるサーバから補足情報を取得して表示する場合について説明する。
101 入力部
102 端末制御部
103 画面構成管理部
104 映像入力部
105 アプリケーション処理部
106 画面生成部
107 合成部
108 出力部
109a 第一チューナ
109b 第二チューナ
109c 外部入力部
109d 通信部
110 デコーダ
111 加工部
112 領域判定部
113 補足情報保持部
115 補足情報表示判定部
200 アンテナ
300 放送局
400 送出局
500 映像提供装置A
600 ネットワーク
700 映像提供装置B
800 補足情報提供装置
Claims (17)
- 少なくとも1つの映像を表示する画面の配置又は縮尺を管理する画面構成管理部と、
入力映像から文字領域を判定する領域判定部と、
前記領域判定部が判定した少なくとも1つの文字領域を含む補足情報領域の映像を切り出して補足情報として保持する補足情報保持部と、
前記画面構成管理部が管理する画面構成に基づく入力映像に加え、前記補足情報保持部が保持する補足情報を表示するかを判定する補足情報表示判定部と、
前記画面構成管理部及び前記補足情報表示判定部からの指示に従い、前記入力映像及び前記補足情報を出力する出力部と、を備え、
前記補足情報表示判定部は、前記画面構成管理部が管理する縮尺に応じて変化する入力映像中の文字領域に含まれる文字のサイズに基づいて、前記補足情報を表示すると判定する映像出力装置。 - 請求項1に記載の映像出力装置であって、
前記領域判定部は、前記入力映像から前記文字領域の存在を判定した場合、当該文字領域の近傍にオブジェクト領域が存在するかを判定し、
前記補足情報領域には、前記領域判定部が判定した少なくとも1つの文字領域及びオブジェクト領域が含まれる映像出力装置。 - 請求項1に記載の映像出力装置であって、
前記補足情報表示判定部は、少なくとも1つの映像を表示する領域以外の領域を、前記補足情報の表示位置として決定する映像出力装置。 - 請求項1に記載の映像出力装置であって、
前記補足情報表示判定部は、前記補足情報の表示位置及び表示サイズを、当該補足情報を含む入力映像中の補足情報領域の位置、他の画面との相対位置、及び所定の余白幅に従って決定する映像出力装置。 - 請求項1に記載の映像出力装置であって、
前記補足情報表示判定部は、前記補足情報を表示する際、当該補足情報を含む入力映像中の補足情報領域を示すフレーム枠を前記入力映像に表示して、前記補足情報と前記フレーム枠との関係を示すガイドを表示するよう処理する映像出力装置。 - 請求項1に記載の映像出力装置であって、
前記補足情報表示判定部は、前記補足情報の表示位置及び表示サイズを、前記領域判定部が抽出した他の文字領域を含む補足情報領域の映像を切り出した他の補足情報と重ならないよう決定する映像出力装置。 - 請求項1に記載の映像出力装置であって、
前記補足情報表示判定部は、前記領域判定部が抽出した少なくとも1つの文字領域のうち、文字のサイズが最も小さいと判定された文字領域を含む補足情報領域の映像を切り出した補足情報を優先的に表示する映像出力装置。 - 請求項1に記載の映像出力装置であって、
前記補足情報表示判定部は、前記領域判定部による判定結果を前記補足情報保持部に記録し、前記領域判定部によって抽出された少なくとも1つの文字領域又はオブジェクト領域を含む補足情報領域のうち、入力映像中に所定時間以上存在している補足情報領域を優先的に表示すると判定する映像出力装置。 - 請求項1に記載の映像出力装置であって、
前記補足情報保持部は、前記補足情報中の文字領域から抽出された文字列を保持し、
前記補足情報表示判定部は、前記補足情報保持部が保持する文字列が、同じ文字領域から直近に抽出された文字列と異なる場合に、前記補足情報を強調して表示するよう処理する映像出力装置。 - 請求項1に記載の映像出力装置であって、
前記補足情報保持部は、前記補足情報に加え、当該補足情報中の文字領域から抽出された文字列を保持し、
前記補足情報表示判定部は、当該映像出力装置のユーザのプロファイルに従って前記文字列を変換して表示するよう処理する映像出力装置。 - 請求項1に記載の映像出力装置であって、
少なくとも1つの映像を表示する画面の配置及び大きさを示す画面構成データを外部サーバから受信する通信部を備え、
前記画面構成管理部は、前記通信部が前記外部サーバから取得した前記画面構成データに従って画面構成を管理し、
前記補足情報表示判定部は、前記画面構成データによって指定された領域に前記補足情報を表示するよう処理する映像出力装置。 - 請求項11に記載の映像出力装置であって、
前記補足情報表示判定部は、前記画面構成管理部が管理する縮尺に応じて変化する入力映像中の文字領域に含まれる文字のサイズに基づいて、前記画面構成データによって指定された領域に前記補足情報を表示するよう処理する映像出力装置。 - 請求項1に記載の映像出力装置であって、
入力映像中の補足情報領域の位置を示す情報を外部サーバから受信する通信部を備え、
前記通信部が前記外部サーバから取得した情報に含まれる補足情報領域を用いて、補足情報となる映像を抽出して表示する映像出力装置。 - 少なくとも1つの映像を表示する画面の配置又は縮尺を管理する画面構成管理部と、
入力映像から文字領域を判定する領域判定部と、
前記領域判定部が判定した少なくとも1つの文字領域に含まれる文字列を補足情報として外部サーバから取得する通信部と、
前記画面構成管理部が管理する画面構成に基づく入力映像に加え、前記通信部が取得した補足情報を表示するかを判定する補足情報表示判定部と、
前記画面構成管理部及び前記補足情報表示判定部からの指示に従い、前記入力映像及び前記補足情報を出力する出力部と、を備え、
前記補足情報表示判定部は、前記領域判定部が判定した少なくとも1つの文字領域に含まれる文字のサイズが閾値よりも小さい場合、前記補足情報を表示する映像出力装置。 - 請求項14に記載の映像出力装置であって、
前記通信部は、少なくとも1つの映像を表示する画面の配置及び大きさを示す画面構成データを前記外部サーバから受信し、
前記画面構成管理部は、前記通信部が前記外部サーバから取得した前記画面構成データに従って画面構成を管理し、
前記補足情報表示判定部は、前記画面構成データによって指定された領域に前記補足情報を表示するよう処理する映像出力装置。 - 入力映像から文字領域を判定し、
少なくとも1つの文字領域を含む補足情報領域の映像を切り出して補足情報として保持し、
少なくとも1つの映像を表示する画面の配置又は縮尺を規定する画面構成に基づく入力映像に加え、前記補足情報を表示するかを判定し、
前記画面構成及び前記判定結果に従い、前記入力映像及び前記補足情報を出力する映像出力方法であって、
前記入力映像中の文字領域に含まれる文字のサイズに基づいて、前記補足情報を表示すると判定する映像出力方法。 - 入力映像から文字領域を判定し、
少なくとも1つの文字領域に含まれる文字列を補足情報として外部サーバから取得し、
少なくとも1つの映像を表示する画面の配置又は縮尺を規定する画面構成に基づく入力映像に加え、前記外部サーバから取得した補足情報を表示するかを判定し、
前記画面構成及び前記判定結果に従い、前記入力映像及び前記補足情報を出力する映像出力方法であって、
少なくとも1つの文字領域に含まれる文字のサイズが閾値よりも小さい場合、前記補足情報を表示すると判定する映像出力方法。
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US20100265401A1 (en) | 2010-10-21 |
JP5372916B2 (ja) | 2013-12-18 |
US8724027B2 (en) | 2014-05-13 |
EP2334063A1 (en) | 2011-06-15 |
CN101897178A (zh) | 2010-11-24 |
CN101897178B (zh) | 2014-09-24 |
US8482672B2 (en) | 2013-07-09 |
US20130321703A1 (en) | 2013-12-05 |
JPWO2010041457A1 (ja) | 2012-03-08 |
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