JP2012100256A - Three-dimension-adapted-data-broadcast output apparatus, three-dimension-adapted-data-broadcast output method, and three-dimension-adapted-data-broadcast output program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a three-dimension-adapted-data-broadcast output apparatus, a three-dimension-adapted-data-broadcast output method, and a three-dimension-adapted-data-broadcast output program that normally display data broadcasting data which is displayed on a BML browser in a predetermined three-dimensional broadcasting method.SOLUTION: The three-dimension-adapted-data-broadcast output apparatus comprises: generating means that horizontally or vertically reducing, to half, each frame of data-broadcasting data which is displayed on a BML browser, and generates a frame formed by two reduced frames in the reducing direction; and output means that bisects the generated frame in the reducing direction, decompresses each bisected frame to double in the reducing direction to form two frames, and temporally alternately outputs the two frames to a display device.

Description

  The present invention relates to a technique for displaying 2D content while displaying 3D video data.

  In 2D (two dimentions) digital broadcasting (hereinafter referred to as 2D broadcasting), by pressing the “d” button on the attached remote control terminal while viewing the broadcast program, the broadcast program is displayed on the BML browser described in Broadcast Markup Language. 2D content data broadcasts such as related information and news / weather forecasts. This BML browser is an information presentation means that is independent of a broadcast program, and is often displayed in an L shape in a superimposed manner around the display video area being viewed. The technology related to the BML browser is described in detail in Non-Patent Document 1.

  Currently, 3D (three dimentions) digital broadcasting (hereinafter referred to as 3D broadcasting) has already started on satellite broadcasting or CATV (Cable Television), or will start soon. In this 3D broadcasting, a separate glasses for the left eye and the right eye are displayed alternately in time, and each displayed image is viewed with the left and right eyes through the 3D glasses, so that the images are stereoscopically viewed. Is adopted. Therefore, unlike 2D broadcasting, separate videos for the left eye and for the right eye are transmitted from the distribution device, and therefore it is necessary to perform stereoscopic processing with a receiving device such as a digital television.

  Currently, Side by Side (hereinafter abbreviated as SbS for convenience of description) or Top and Bottom (hereinafter referred to as SbS) for distributing and processing video data in a band equivalent to the conventional 2D broadcast so as not to affect the broadcast wave band. A method called “TaB” is a mainstream for convenience of description.

  As shown in FIG. 9, in the distribution apparatus, the left-eye video and the right-eye video are displayed in the horizontal direction or the vertical direction (horizontal direction in the case of the SbS system and vertical direction in the case of the TaB system). The video data for 3D, which is reduced in half and arranged in the reduction direction, is stored in one screen by arranging the two reduced images. Then, in the receiving apparatus, the video area composed of the transmitted video data for one screen is divided into two equal parts in the reduction direction, and each divided video is expanded twice in the reduction direction, and the video for the left eye And right-eye video, and each video restored by the generation is displayed alternately in time.

  At this time, since a method for automatically distinguishing whether the receiving device is 2D broadcasting or 3D broadcasting has not been realized, it is determined that the receiving device is 3D broadcasting visually and a button on the remote control terminal is pressed. Thus, the display is switched to 3D broadcast display. For example, if the received video is divided into two in the horizontal direction or the vertical direction, it is determined as 3D broadcasting.

"BML Content Development Handbook <Terrestrial Digital / Satellite Digital Broadcasting Bias> Second Edition", Impress R & D, Internet Media Research Institute, Survey Report Series, p.12-15, p.26-35

  However, since the BML browser does not support the SbS system or the TaB system, there is a problem that the data broadcast cannot be normally displayed when the 3D broadcast is displayed. For example, as shown in FIG. 10, when a data broadcast is displayed by pressing the “d” button while a 3D broadcast is displayed in the SbS format, one frame of data broadcast data displayed on the BML browser is also divided into two in the middle of the screen. Since each frame is stretched horizontally, the characters up to “Ay” and “Kakiku” are displayed in one frame in the display area corresponding to L in the BML browser, In this frame, the character “Keko” is displayed in a state stretched horizontally only in the display area corresponding to the horizontal bar of the L character instead of the L shape. Furthermore, since these two stretched frames are alternately displayed in time, it is difficult to provide appropriate data broadcasting.

  The present invention has been made in view of the above. For realizing 3D broadcasting using the same band as 2D broadcasting, such as the SbS system and the TaB system, one screen is divided to be used for the left eye and the right eye. In the 3D broadcasting system in which each video is transmitted, and each video is divided and expanded on the receiving device side and displayed alternately in time, the data broadcasting data displayed on the BML browser is displayed normally. And

  The 3D-compatible data broadcast output device according to claim 1, wherein one frame of data for data broadcasting displayed by the BML browser is shrunk in half in the horizontal direction or the vertical direction, and two shrunk reduced frames are in the reduction direction. Generation means for generating arranged frames; and the generated frames are divided into two equal parts in the reduction direction, and each divided frame is expanded twice in the reduction direction to form two frames. Output means for alternately outputting to the display device in terms of time.

  According to the present invention, one frame of data for data broadcasting displayed on the BML browser is shrunk in half in the horizontal direction or the vertical direction, and a frame in which two shrunk reduced frames are arranged in the reduction direction is generated and generated. In order to divide the divided frame into two equal parts in the reduction direction and to expand each divided frame twice to two frames in the reduction direction and to output the two frames to the display device alternately in time. In order to realize 3D broadcasting using the same band as 2D broadcasting like SbS system and TaB system, one screen is divided and each image for left eye and right eye is transmitted, and each receiving device side In the 3D broadcasting system in which the video is divided, expanded and displayed alternately in time, the data broadcasting data displayed on the BML browser can be displayed normally.

  The 3D-compatible data broadcast output device according to claim 2 is the 3D-compatible data broadcast output device according to claim 1, wherein the left-eye video and the right-eye video shrunk in half in the reduction direction are A reduction means for extracting a left-eye video and a right-eye video by dividing a video area composed of video data arranged in the reduction direction into two equal parts in the reduction direction, and reducing each of the extracted videos. And a superimposing unit that superimposes each reduced video on each reduced frame of the frame.

  The 3D-compatible data broadcast output device according to claim 3 is the 3D-compatible data broadcast output device according to claim 2, wherein the data broadcast data and the video data are received via a wireless or wired communication network. And an analyzing means for analyzing whether or not the received video data is for stereoscopic viewing.

  5. The 3D-compatible data broadcast output method according to claim 4, wherein in the 3D-compatible data broadcast output method performed by a computer, one frame of data broadcast data displayed on the BML browser is reduced by half in the horizontal direction or the vertical direction. Generating a frame in which two reduced frames are arranged in the reduction direction, and dividing the generated frame into two equal parts in the reduction direction, and doubling each divided frame in the reduction direction. And decompressing into two frames, and outputting the two frames to the display device alternately in time.

  According to the present invention, one frame of data for data broadcasting displayed on the BML browser is shrunk in half in the horizontal direction or the vertical direction, and a frame in which two shrunk reduced frames are arranged in the reduction direction is generated and generated. In order to divide the divided frame into two equal parts in the reduction direction and to expand each divided frame twice to two frames in the reduction direction and to output the two frames to the display device alternately in time. In order to realize 3D broadcasting using the same band as 2D broadcasting like SbS system and TaB system, one screen is divided and each image for left eye and right eye is transmitted, and each receiving device side In the 3D broadcasting system in which the video is divided, expanded and displayed alternately in time, the data broadcasting data displayed on the BML browser can be displayed normally.

  6. The 3D-compatible data broadcast output method according to claim 5, wherein the left-eye video and the right-eye video shrunk in half in the horizontal direction or the vertical direction are reduced in the 3D-compatible data broadcast output method performed by a computer. Extracting a left-eye image and a right-eye image by dividing the image area composed of image data arranged in a direction into two equal parts in the reduction direction, and reducing each extracted image; A step of reducing one frame of data broadcasting data displayed in the BML browser in half in the reduction direction, generating a frame in which two reduced frames are arranged in the reduction direction, and each of the reduced videos A step of superimposing each of the reduced frames on each reduced frame, and dividing the frame after superposition into two equal parts in the reduction direction, and dividing each divided frame into the reduced frames, respectively. Direction and two frames with stretched twice, and having a step of outputting the two frames temporally display alternately a.

  According to the present invention, one frame of data for data broadcasting displayed on the BML browser is shrunk in half in the horizontal direction or the vertical direction, and a frame in which two shrunk reduced frames are arranged in the reduction direction is generated and generated. In order to divide the divided frame into two equal parts in the reduction direction and to expand each divided frame twice to two frames in the reduction direction and to output the two frames to the display device alternately in time. In order to realize 3D broadcasting using the same band as 2D broadcasting like SbS system and TaB system, one screen is divided and each image for left eye and right eye is transmitted, and each receiving device side In the 3D broadcasting system in which the video is divided, expanded and displayed alternately in time, the data broadcasting data displayed on the BML browser can be displayed normally.

  The 3D-compatible data broadcast output method according to claim 6 is a 3D-compatible data broadcast output method performed by a computer, in which one frame of data broadcast data displayed on a BML browser is shrunk in half in a horizontal direction or a vertical direction. Generating a frame in which two reduced frames are arranged in the reduction direction, and video data in which a left-eye video and a right-eye video that are reduced in half in the reduction direction are arranged in the reduction direction A video region consisting of two parts in the reduction direction to extract a left-eye video and a right-eye video, respectively reducing each of the extracted videos, A step of superimposing each of the reduced frames on the reduced frame, and a step of dividing the superimposed frame into two equal parts in the reduction direction, and dividing the divided divided frames into the reduced frames, respectively. Direction and two frames with stretched twice, and having a step of outputting the two frames temporally display alternately a.

  According to the present invention, one frame of data for data broadcasting displayed on the BML browser is shrunk in half in the horizontal direction or the vertical direction, and a frame in which two shrunk reduced frames are arranged in the reduction direction is generated and generated. In order to divide the divided frame into two equal parts in the reduction direction and to expand each divided frame twice to two frames in the reduction direction and to output the two frames to the display device alternately in time. In order to realize 3D broadcasting using the same band as 2D broadcasting like SbS system and TaB system, one screen is divided and each image for left eye and right eye is transmitted, and each receiving device side In the 3D broadcasting system in which the video is divided, expanded and displayed alternately in time, the data broadcasting data displayed on the BML browser can be displayed normally.

  A 3D-compatible data broadcast output program according to claim 7 causes a computer to execute each step in the 3D-compatible data broadcast output method according to any one of claims 4 to 6.

  According to the present invention, in order to realize 3D broadcasting using the same band as 2D broadcasting like SbS system and TaB system, one screen is divided and each image for left eye and right eye is transmitted, In the 3D broadcasting system in which each video is divided, expanded and displayed alternately in time on the receiving device side, data broadcasting data displayed on the BML browser can be normally displayed.

It is a figure which shows the basic principle of the data broadcasting display method in 3D broadcasting system. It is a figure which shows the functional block structure of a 2D / 3D corresponding | compatible data broadcasting display apparatus. It is a figure which shows the operation | movement flow of the 2D / 3D corresponding | compatible data broadcasting display apparatus in the case of performing 3D display by a SbS system. FIG. 4 is a reference diagram for explaining the operation flow of FIG. 3. It is a figure which shows the flag setting procedure of a video data analysis process part. It is a figure which shows the example of mounting in the case of implement | achieving 2D / 3D corresponding | compatible data broadcasting display apparatus by STB. It is a figure which shows the example of mounting in the case of implement | achieving a 2D / 3D corresponding | compatible data broadcast display apparatus by IPTV. It is a figure which shows the example of mounting in the case of implement | achieving 2D / 3D corresponding | compatible data broadcasting display apparatus by STB for IPTV. It is a figure which shows a SbS system and a TaB system. It is a figure which shows the display state of the data broadcast at the time of 3D broadcast display. It is a figure which shows the other functional block structure in a 2D / 3D corresponding | compatible data broadcasting display apparatus. It is a figure which shows the 3D conversion processing operation | movement flow of an image | video and data broadcasting. It is a figure which shows the input timing and output timing of a flame | frame.

  Hereinafter, an embodiment for carrying out the present invention will be described with reference to the drawings. However, the present invention can be implemented in many different modes and should not be construed as being limited to the description of the present embodiment.

[Basic Principle of the Present Invention]
First, the basic principle of the present invention described in detail below will be described. FIG. 1 is a diagram for explaining the basic principle of a data broadcasting display method in the 3D broadcasting system.

  The reception device receives video data and data broadcast data transmitted from the distribution device, as in the conventional case. For example, when 3D display is performed using the SbS method, one frame of data broadcasting data displayed on the BML browser (consisting of a display area of the BML browser and data broadcasting data displayed on the display area). 1 frame) is shrunk to a half size in the horizontal direction, and a frame in which two reduced frames are arranged in the horizontal direction is generated (see FIG. 1A). After that, as in the conventional processing for the video area of the video data, the generated frame is divided in the horizontal direction, and each divided frame after the division is expanded into two frames, and the two frames are alternately arranged in time. Display (see FIG. 1B). Note that each process of dividing / decompressing / alternating display of the generated frame is basically entrusted to the same processing unit as the conventional processing unit that divides / expands / alternately displays the video area. The feature is to generate a display area as shown in FIG.

  The video data referred to here is video data generated so as to be stereoscopically viewed by 3D glasses. Specifically, as shown in FIG. 9, a left-eye video and a right-eye video are displayed. Is 3D video data that is reduced in half in the horizontal or vertical direction, and the two reduced images are arranged in one reduction screen side by side in the reduction direction. The video area is a video area that is formed by the video data and displayed on the screen.

  As described above, since the same processing as that performed on the received video data is performed on the BML browser, the entire screen including the BML browser is displayed normally, and the data broadcast is viewed in the display state in the SbS system. (See FIG. 1 (c)). However, when the data broadcasting data displayed on the BML browser is not processed for the left eye and the right eye, there is no parallax and the 2D display is performed through the 3D glasses. Even in the TaB system, the same effect can be obtained by the same basic principle.

[Configuration example of receiving device]
Next, the configuration of a receiving apparatus that can execute such a basic principle will be described. FIG. 2 is a diagram showing a functional block configuration of the 2D / 3D-compatible data broadcast display device according to the present embodiment. This 2D / 3D-compatible data broadcast display device is mounted inside a 3D-compatible digital television (3D-TV).

  The 2D / 3D-compatible data broadcast display device 1 includes a reception processing unit 101, a video data analysis processing unit 102, a 3D video display state flag holding unit 103, a data broadcast data extraction / accumulation processing unit 104, and a data broadcast Data storage unit 105, data broadcast data read processing unit 106, data broadcast display instruction processing unit 107, 2D / 3D switching processing unit 108, 2D-BML browser display processing unit 109, overlay display processing unit 110, A 3D-BML browser display processing unit 111, an L / R overlay display processing unit 112, a 3D display processing unit 113, and a display 114 are included. Hereinafter, functions of these functional blocks will be described.

  The reception processing unit 101 has a function of acquiring data received by the antenna 3 via a wireless communication network (not shown) through the reception interface 9a, and separating the acquired data into video data and data for data broadcasting. ing.

  The video data analysis processing unit 102 analyzes whether the video data separated by the reception processing unit 101 is 2D or 3D. In the case of 3D video data, the video data analysis processing unit 102 sets the 3D video display status flag of the 3D video display status flag holding unit 103. In the case of 2D video data, the flag is set off.

  The data broadcast data extraction / accumulation processing unit 104 has a function of storing the data broadcast data separated by the reception processing unit 101 in the data broadcast data storage unit 105.

  When receiving the display instruction signal for displaying the data broadcast, the data broadcast data read processing unit 106 reads out the data broadcast data from the data broadcast data storage unit 105 and performs the 3D / 3D switching processing unit 108. Based on the 2D switching process, the data broadcasting data is transmitted to the 2D-BML browser display processing unit 109 or the 3D-BML browser display processing unit 111.

  When the data broadcast display instruction processing unit 107 receives a data broadcast display instruction signal by pressing the “d” button of the remote control terminal 5 through the remote control interface 9b, the data broadcast display instruction processing unit 107 instructs the data broadcast data read processing unit 106 to display the data broadcast. It has a function to output a signal.

  The 2D / 3D switching processing unit 108 refers to the 3D video display state flag held in the 3D video display state flag holding unit 103, determines whether the flag is on or off, and determines whether the 3D video display state flag is on or off. / 2D display method switching function.

  The 2D-BML browser display processing unit 109 displays a frame made up of a BML browser that displays the data broadcasting data sent from the data broadcasting data read processing unit 106 (that is, displayed in the display area of the BML browser and the display area). 1 frame composed of data broadcasting data).

  The overlay display processing unit 110 superimposes (overlays) the video area made up of 2D video data separated by the reception processing unit 101 on the frame generated by the 2D-BML browser display processing unit 109, and outputs the frame to the display 114. have.

  The 3D-BML browser display processing unit 111 has one frame of data for data broadcasting sent from the data broadcasting data reading processing unit 106 (that is, the display area of the BML browser and the data broadcasting data displayed in the display area). 1 frame) is reduced in half in the horizontal direction or vertical direction (horizontal direction in the case of SbS method, vertical direction in the case of TaB method), and two reduced reduced frames are arranged in the reduction direction. It has the function to generate.

  The L / R overlay display processing unit 112 bisects the video region composed of the 3D video data separated by the reception processing unit 101 in the same direction as the reduction direction, thereby generating a left-eye video and a right-eye video. A function of extracting each video, reducing each extracted video, and superimposing (overlaying) each reduced video on each reduced frame of the frame generated by the 3D-BML browser display processing unit 111. is doing.

  The 3D display processing unit 113 bisects a frame in which each reduced video is superimposed in the same direction as the reduction direction, and extends each divided frame twice in the same direction as the reduction direction. And two frames (two frames each including a left-eye image and a right-eye image) are alternately output to the display 114 in terms of time. Further, it has a function of transmitting a synchronization control signal (left eye / right eye shutter switching signal) to the 3D glasses 7 through the 3D glasses control interface 9c.

[Characteristic operation of 2D / 3D compatible data broadcasting display device]
Next, a characteristic operation of the 2D / 3D compatible data broadcast display device 1 will be described. FIG. 3 is a diagram showing an operation flow of the 2D / 3D-compatible data broadcast display device when 3D display is performed using the SbS method.

  First, the viewer presses the “d” button on the remote control terminal 5 to request the start of data broadcast display (S101). In response to this request, the data broadcast display instruction processing unit 107 outputs a data broadcast display instruction signal regarding the broadcast channel being viewed to the data broadcast data read processing unit 106, and the data broadcast data read processing unit 106 displays the display signal. The data broadcast data corresponding to the instruction signal is read from the data broadcast data storage unit 105 and sent to the 2D-BML browser display processing unit 109 or the 3D-BML browser display processing unit 111 via the 2D / 3D switching processing unit 108. Sent out.

  Next, the 2D / 3D switching processing unit 108 refers to the 3D video display state flag set in the 3D video display state flag holding unit 103, and determines whether it is on or off (S102). When the 3D video display state flag is off, the 2D video data separated by the reception processing unit 101 is set (switched) to be sent to the overlay display processing unit 110, and the data broadcast data read processing unit is set. The data broadcasting data sent from 106 is set (switched) to be sent to the 2D-BML browser display processing unit 109. On the other hand, when the 3D video display state flag is on, the 3D video data separated by the reception processing unit 101 is set (switched) to be sent to the L / R overlay display processing unit 112, and is used for data broadcasting. The data broadcasting data sent from the data read processing unit 106 is set (switched) to be sent to the 3D-BML browser display processing unit 111.

  Next, when the 3D video display state flag is off, the data broadcast is displayed by superimposing the data broadcasting data on the video data in an L-shape using the full screen, as in the case of the conventional 2D. (S103). Specifically, the 2D-BML browser display processing unit 109 generates a BML browser frame in which data broadcasting data is displayed in an L shape, and the overlay display processing unit 110 converts the video area of the video data into the frame. The image is superimposed and output on the display 114.

  After the process of S103, when the data broadcast display end is requested by re-pressing the “d” button of the remote control terminal 5 (S104), the superimposition display of S103 ends, and only the video data is output and displayed on the display 114. (S105).

  On the other hand, if the 3D video display state flag is ON in the determination process of S102, the L / R overlay display processing unit 112 divides the video area made up of 3D video data into two equal parts in the horizontal direction and extracts the result. The left-eye video and the right-eye video are reduced so as to fit in the area excluding the L-shaped area of the BML browser (S106, FIG. 4A).

  After the processing of S106, the 3D-BML browser display processing unit 111 reduces one frame of the data broadcasting data such as characters and illustrations displayed on the BML browser by ½ in the horizontal direction. Two frames for the right eye and the right eye are generated (S107, FIG. 4B). Note that, when reducing, instead of simple horizontal ½ sampling, ½ sampling may be performed after applying a low-pass filter in the horizontal direction in order to prevent the occurrence of moire noise. Further, the process of S107 may be performed before or simultaneously with the process of S106.

  After the process of S107, the L / R overlay display processing unit 112 superimposes the video for the left eye and the video for the right eye reduced in S106 on each reduced frame in the frame generated in S107. (S108, FIG. 4 (c)). Thereby, data in which both the video data and the data for data broadcasting correspond to the SbS method is generated. The generated data can be viewed in 3D through the 3D glasses 7 by inputting the generated data to the 3D display processing unit 113 that performs 3D display processing by the SbS method. Hereinafter, the description of the basic operation flow will be continued.

  After the processing of S108, the 3D display processing unit 113 divides the frame in which each reduced image is superimposed into two equal parts in the horizontal direction, and each divided divided frame is doubled in the horizontal direction to obtain two frames. The two frames are output to the display 114 alternately in time (S109).

  After that, when the data broadcast display end is requested by pressing the “d” button of the remote control terminal 5 again (S110), the data broadcast display is ended (S111), and the left-eye video and the right-eye display are displayed. Is restored to the size before reduction (vertical half of the screen) (S112), and only the video is displayed in the SbS system (S113).

  In the present embodiment, as described above, the 3D video display state flag is set to determine whether the currently broadcast video data is 2D or 3D within the 2D / 3D-compatible data broadcast display device 1. It has been introduced. Here, the on / off setting procedure of the 3D video display state flag in the video data analysis processing unit 102 will be briefly described. FIG. 5 is a diagram showing a flag setting procedure of the video data analysis processing unit 102.

  Usually, video data is displayed in 2D (S201), and when 3D broadcast program video data is received, the 3D video display state flag is turned on (S202). Then, the output of the video data is switched to 3D video display by the 2D / 3D switching processing unit 108 referring to the changed 3D video display state flag (S203). Thereafter, after the reception of the 3D broadcast program is completed or when switching to another channel that is 2D broadcast, the 3D video display state flag is changed to OFF, and the display returns to 2D (S204).

  Whether the received video data is 3D or not is determined based on a signal input based on a button pressing operation of the remote control terminal 5 when the viewer views the screen and determines that the video data is 3D, or video data Or an identifier (3D broadcast identification metadata) assigned to an EPG (Electronic Program Guide).

  In addition, since the 3D video data and the data display data are not always displayed at the same time, that is, when the data broadcast is displayed in 3D, the data broadcast may be displayed on the full screen. And S108 can be omitted.

[Overall operation of 2D / 3D compatible data broadcasting display device]
The overall operation of the 2D / 3D-compatible data broadcast display device 1 will be described using the functional block configuration and basic operation flow of the 2D / 3D-compatible data broadcast display device 1 described above.

<Operation A for Displaying Video Only>
First, a case where only video is displayed without displaying data broadcasting will be described. The reception processing unit 101 separates data from the antenna 3 received from the reception interface 9a into video data and data broadcasting data. Then, the video data analysis processing unit 102 analyzes whether the received video data is 2D or 3D. If the received video data is 3D, the 3D video display status flag of the 3D video display status flag holding unit 103 is set. If it is turned on and 2D, the flag is turned off. Thereafter, the 2D / 3D switching processing unit 108 switches the 2D / 3D display method according to the on / off state of the 3D video display state flag.

  In the case of 2D, the overlay display processing unit 110 outputs and displays video data on the display 114. However, in the case of this operation A, the overlay display processing unit 110 simply outputs and displays the video data on the display 114 as it is.

  On the other hand, in the case of 3D, after the L / R overlay display processing unit 112, the 3D display processing unit 113 performs display method processing according to SbS or the like, and then the video data is displayed on the display 114 in 3D. At the same time, a synchronization control signal is transmitted to the 3D glasses 7 worn by the viewer through the 3D glasses control interface 9c. However, in the case of this operation A, the L / R overlay display processing unit 112 simply transmits the video data to the 3D display processing unit 113 as it is.

<Operation B for Displaying Data Broadcast in 2D>
Next, a case where data broadcasting is displayed in 2D will be described. The data broadcasting data separated by the reception processing unit 101 is stored in the data broadcasting data storage unit 105 by the data broadcasting data extraction / storage processing unit 104. When the start of data broadcast display is instructed by the viewer's remote control operation (pressing operation of the “d” button), the data broadcast display instruction processing unit 107 outputs the data broadcast display instruction signal to the data broadcast data read processing unit. 106.

  Thereafter, the data broadcast data read processing unit 106 reads the data broadcast data from the data broadcast data storage unit 105 and sends it to the display 114. At that time, the 2D / 3D switching processing unit 108 refers to the 3D video display state flag of the 3D video display state flag holding unit 103. When the flag is off and the video data is 2D, the 2D / 3D switching processing unit 108 Then, the data for data broadcasting is sent to the 2D-BML browser display processing unit 109.

  Then, the 2D-BML browser display processing unit 109 generates one frame of data broadcasting data composed of a BML browser on which the transmitted data broadcasting data is displayed (corresponding to rendering in a normal Web browser), and overlay After the video area of the video data is superimposed by the display processing unit 110, the data broadcast and the video are displayed on the display 114.

<Operation C for Displaying Data Broadcast in 3D>
Next, a case where data broadcasting is displayed in 3D will be described. In the case of the operation B, if the 3D video display state flag is on and the video data is 3D, the data broadcasting data is sent to the 3D-BML browser display processing unit 111 via the 2D / 3D switching processing unit 108. The

  Then, the 3D-BML browser display processing unit 111 reduces one frame of data for data broadcasting displayed on the BML browser by ½ in the horizontal direction, and two reduced frames for the left eye and the right eye. A connected frame is generated. Further, the L / R overlay display processing unit 112 divides the video area of the video data into two equal parts in the horizontal direction, and the left-eye video and the right-eye video extracted thereby are reduced.

  Thereafter, the L / R overlay display processing unit 112 superimposes the reduced left-eye video and right-eye video on each reduced frame in the generated frame. The 3D display processing unit 113 performs display method processing according to SbS or the like, and then the data broadcast and the video are displayed in 3D on the display 114, and the viewer puts it on through the 3D glasses control interface 9c. A synchronization control signal is transmitted to the 3D glasses 7.

[Other configuration examples of 2D / 3D compatible data broadcasting display device]
So far, the case of 3D video service in broadcasting such as satellite broadcasting and CATV has been described, but the same applies to the case of 3D video distribution service by communication such as IPTV. Further, in addition to mounting on a 3D-compatible digital television with a built-in display as described above, it may be mounted on an STB (Set Top Box), a tuner built-in disk recorder, or the like. These device mounting examples will be described below.

  FIG. 6 is a diagram illustrating an implementation example in the case of realizing with STB instead of 3D-TV illustrated in FIG. 2. Unlike the functional block configuration shown in FIG. 2, the display 114 is not built in, and data broadcast and video are output from the video output interface 9d and displayed on an external 3D-compatible digital television (3D-TV 11). Yes.

  FIG. 7 is a diagram showing an implementation example in the case of realizing by IPTV instead of broadcasting instead of 3D-TV shown in FIG. Unlike the functional block configuration shown in FIG. 2, instead of the antenna 3 and the reception interface 9a, a wired communication network 13 and a communication interface 9a 'are employed as the data input unit. Further, a communication processing unit 101 ′ is employed instead of the reception processing unit 101.

  FIG. 8 is a diagram showing an implementation example in the case where the STB for IPTV is realized instead of the broadcast instead of the STB shown in FIG. Unlike the functional block configuration shown in FIG. 6, instead of the antenna 3 and the reception interface 9a, a wired communication network 13 and a communication interface 9a 'are employed as the data input unit. Further, a communication processing unit 101 ′ is employed instead of the reception processing unit 101.

  In addition, the SbS method has been described as an example of the 3D display method. However, in the case of the TaB method, only the vertical and horizontal directions are changed, and can be realized by the same method as the SbS method.

  Furthermore, when a plurality of systems such as the SbS system and the TaB system are mixed and serviced, for example, “0: 2D display, 1: SbS” is used instead of the 3D video display state flag on / off value. You may change to the flag which can take a value required in order to show which system it is like "system 2: TaB system". In such a case, the processing after S102 in FIG. 3 is branched into three or more flows according to the changed flag value, and thereafter processed by a display method according to each method.

  As described above, according to the present embodiment, one frame of data for data broadcasting displayed on the BML browser is reduced in half in the horizontal direction or the vertical direction, and two reduced reduced frames are arranged in the reduction direction. The generated frame is divided into two equal parts in the reduction direction, each divided frame is doubled in the reduction direction to become two frames, and the two frames are alternately displayed in time. Since it is output to the device, in order to realize 3D broadcasting using the same band as 2D broadcasting like SbS system and TaB system, one screen is divided and each image for left eye and right eye is transmitted, In the 3D broadcasting system in which each video is divided, expanded and displayed alternately in time on the receiving device side, data broadcasting data displayed on the BML browser can be normally displayed. Thereby, unnaturalness of display is eliminated as compared with the case where the present invention is not applied, and comfortable 3D broadcasting can be provided to the viewer.

[Other embodiments]
Next, another embodiment will be described. The present embodiment shown below is based on the following reference, and after scaling the video (drawing on the moving picture plane), scaling (changing the size and position), and overlaying the designated area of the character graphic plane, the video data and Data broadcasting data is displayed three-dimensionally.

  Reference: “Data Broadcast Coding and Transmission Methods in Digital Broadcasting” (Radio Industry Association, ARIB STD-B24 5.4 Edition, Volume 2, Appendix 1, “6.5 Video Scaling”, 2009).

  FIG. 11 is a diagram showing another functional block configuration in the 2D / 3D-compatible data broadcast display device. The 2D / 3D-compatible data broadcast display device 1 according to the present embodiment includes a reception processing unit 301, a DEMUX unit 302, a video processing unit 303, a data processing unit 304, an overlay processing unit 305, and a monitor output unit 306. And a 3D conversion instruction unit 307. Hereinafter, functions of these functional units will be described.

  The reception processing unit 301 has a function of receiving data transmitted from a distribution device (not shown) via a wireless or wired communication network.

  The DEMUX unit 302 separates the data received by the reception processing unit 301 into video data and data broadcasting data, outputs the video data to the video processing unit 303, and outputs the data broadcasting data to the data processing unit 304. It has a function to do.

  The video processing unit 303 has a function of outputting the video data separated by the DEMUX unit 302 to a moving image plane and outputting the moving image plane to the overlay processing unit 305.

  The data processing unit 304 analyzes the BML included in the data broadcasting data separated by the DEMUX unit 302, outputs the character graphic element (object) obtained thereby to the character graphic plane, and converts the character graphic plane into the character graphic plane. It has a function of outputting to the overlay processing unit 305.

  The overlay processing unit 305 has a function of scaling the moving image plane output from the video processing unit 303 and superimposing it on a predetermined position of the character / graphic plane output from the data processing unit 304.

  The monitor output unit 306 has a function of outputting the moving image plane and the character graphic plane superimposed by the overlay processing unit 305 to the monitor.

  The 3D conversion instruction unit 307 has a function of transmitting a 3D conversion processing request based on the pressing operation of the “3D” button of the remote control terminal to the video processing unit 303 and the data processing unit 304, respectively. Note that the video playback device 1 further includes a depth adjustment unit (not shown) that adjusts the three-dimensional depth (three-dimensional depth amount) of the data. Alternatively, the stereoscopic depth value of data broadcasting is included.

  Next, the overall operation of the 2D / 3D-compatible data broadcast display device 1 according to the present embodiment will be described.

  First, the data distributed from the distribution device is received by the reception processing unit 301, and the received data is separated into video data and data for data broadcasting by the DEMUX unit 302 and temporarily stored in the storage means ( S301).

  Next, when simultaneous viewing of the video and the data broadcast is desired by pressing the “d” button on the remote control terminal, the video data is read from the storage means by the video processing unit 303 and output on the moving picture plane. At the same time, the data processing unit 304 reads out the data broadcasting data from the storage means, analyzes the BML included in the data broadcasting data, and displays the characters and graphics obtained by the analysis processing on the character / graphic plane. (S302). At this time, the overlay processing unit 305 is also notified of the drawing position and scaling size of the video arranged in the BML browser.

  Here, with reference to FIG. 12, a 3D conversion processing operation of video and data broadcasting in the case where the distributed video is SbS 3D video data will be described in detail.

  First, since the distributed video is video data for 3D, when the user presses the “3D” button on the remote control terminal, a 3D conversion request is sent from the 3D conversion instruction unit 307 to the video processing unit 303 and data processing. The data is transmitted to the unit 304 (S302-1).

  Next, the video processing unit 303 determines whether or not the distributed video is 3D video data (S302-2).

  Next, since the distributed video is SbS 3D video data, the video processing unit 303 divides the video data into left and right parts and expands each divided video by 2 times in the horizontal direction. By doing so, the video for the left eye and the video for the right eye are respectively restored, and each video data is output on the moving picture plane alternately at a speed double the input rate (S302-3).

  On the other hand, in S302-3, the data processing unit 304 draws the analyzed character or figure in the first frame as specified, and enlarges or reduces the character or figure in accordance with the left and right parallax. Processing such as position movement is performed and drawing is performed in the second frame, and a character / graphic plane including these two frames is output to the overlay processing unit 305. Note that the right and left parallaxes are obtained based on a desired three-dimensional depth value designated by the user.

  In other words, regarding the position movement process commensurate with the left and right parallax, the data processing unit 104 includes the first frame in which the character / graphic element is drawn at the designated position designated in the data for data broadcasting and the 3D conversion request. A process of generating a character / graphic plane composed of a second frame in which the same character / graphic element is drawn at a position shifted from the specified position based on a pixel movement distance calculated from a user-specified solid depth value. is doing. Simply, the position of the object is moved by the calculated pixel movement distance.

  Note that the output timing of the character / graphic plane is double the input rate as in the case of the moving image plane. For example, as shown in FIG. 13, when a data frame transmitted from a distribution device is input to the 2D / 3D-compatible data broadcast display device 1 at a time interval of t1, it is output at a time interval of t2 = (t1) / 2. Therefore, the left and right moving image planes and character graphic planes are output at double the input timing of one frame.

  Next, the overlay processing unit 305 enlarges / reduces / positions the moving image plane based on the image drawing position and scaling size notified in S302, and the left eye image data included in the moving image plane The video data for the right eye is superimposed on the first frame and the second frame of the character graphic plane, respectively, and then output to the monitor output unit 306 (S303).

  Finally, the monitor output unit 306 causes the first frame on which the video data for the left eye is superimposed and the second frame on which the video data for the right eye are superimposed alternately in time at a double speed of the input rate. The data is output on the BML browser and the left and right composite frames are alternately displayed on the screen (S304).

  As described above, according to the present embodiment, it is calculated from the first frame in which the character / graphic element obtained by analyzing the data for data broadcasting is drawn at the designated position and the desired stereoscopic depth value designated by the user. A character / graphic plane composed of a second frame in which the same character / graphic element is drawn at a position shifted from the designated position based on the pixel movement distance to be generated, and for the left eye and the right eye included in the moving image plane Since each video data is superimposed on each of the first and second frames of the character / graphic plane and alternately output to the monitor, the left and right composite frames are sequentially output. Normal and three-dimensional viewing is possible.

  When the video is not 3D video data, the output rate of the character / graphic plane output from the data processing unit 304 is twice the output rate of the moving image plane output from the video processing unit 303. In this case, a video representing 2D video may be output in 3D data broadcasting by overlapping one moving picture plane with two character / graphic planes.

  The data distributed from the distribution apparatus is generally generated in the MPEG-2TS format, but may be generated in other formats.

  In addition, the same effect can be obtained by the same processing even if the video data for 3D is TaB method instead of the SbS method.

  Finally, the 2D / 3D-compatible data broadcast display device 1 described in each embodiment is configured by a computer. That is, the 3D video display state flag holding unit 103 and the data broadcast data storage unit 105 are realized by a storage unit such as a memory. The reception processing unit 101, the communication processing unit 101 ′, the video data analysis processing unit 102, the data broadcast data extraction / storage processing unit 104, the data broadcast data read processing unit 106, and the data broadcast display instruction process Unit 107, 2D / 3D switching processing unit 108, 2D-BML browser display processing unit 109, overlay display processing unit 110, 3D-BML browser display processing unit 111, L / R overlay display processing unit 112, The 3D display processing unit 113, the reception processing unit 301, the DEMUX unit 302, the video processing unit 303, the data processing unit 304, the overlay processing unit 305, the monitor output unit 306, and the 3D conversion instruction unit 307 are: It is realized by a calculation means such as a CPU and executed by a program.

  Further, the 2D / 3D-compatible data broadcast display device 1 described in each embodiment is recorded as a program in a readable manner on a recording medium such as an optical storage device or a magnetic storage device, and this recording medium is incorporated into a computer or recorded. A program recorded on a medium is downloaded to a computer via an arbitrary communication line, or installed from a recording medium, and the computer is operated with the program, whereby each processing operation described above is performed as 2D / 3D compatible data broadcasting. Of course, it can function as the display device 1.

1 ... 2D / 3D compatible data broadcast display device (3D compatible data broadcast output device)
101. Reception processing unit (reception means)
101 '... Communication processing unit (receiving means)
102 ... Video data analysis processing unit (analysis means)
DESCRIPTION OF SYMBOLS 103 ... 3D video display state flag holding part 104 ... Data broadcast data extraction / accumulation processing part 105 ... Data broadcast data storage part 106 ... Data broadcast data read-out processing part 107 ... Data broadcast display instruction processing part 108 ... 2D / 3D Switching processing unit 109 ... 2D-BML browser display processing unit 110 ... Overlay display processing unit 111 ... 3D-BML browser display processing unit (generation means)
112 ... L / R overlay display processing unit (reducing means, superimposing means)
113 ... 3D display processing unit (output means)
114 ... Display 3 ... Antenna 5 ... Remote control terminal 7 ... 3D glasses 9a ... Reception interface 9a '... Communication interface 9b ... Remote control interface 9c ... 3D glasses control interface 9d ... Video output interface 11 ... 3D-TV
DESCRIPTION OF SYMBOLS 13 ... Communication network 301 ... Reception processing part 302 ... DEMUX part 303 ... Video processing part 304 ... Data processing part 305 ... Overlay processing part 306 ... Monitor output part 307 ... 3D conversion instruction | indication part S101-S113, S201-S204, S301-S304 , S302-1 to S302-3 Step

Claims (7)

Generating means for generating a frame in which one frame of data for data broadcasting displayed in the BML browser is reduced in half in the horizontal direction or the vertical direction, and two reduced reduced frames are arranged in the reduction direction;
The generated frame is divided into two equal parts in the reduction direction, and each divided frame is doubled in the reduction direction to become two frames, and the two frames are output to the display device alternately in time. Output means for
A 3D-compatible data broadcast output device. Left-eye video by dividing the video region composed of video data in which the left-eye video and the right-eye video shrunk in half in the reduction direction into two equal parts in the reduction direction And a right-eye image, and a reduction means for reducing each extracted image,
Superimposing means for superimposing each reduced image on each reduced frame of the frame;
The 3D-compatible data broadcast output device according to claim 1, further comprising: Receiving means for receiving the data for data broadcasting and the video data via a wireless or wired communication network;
Analyzing means for analyzing whether the received video data is for stereoscopic viewing;
The 3D-compatible data broadcast output device according to claim 2, further comprising: In a 3D-compatible data broadcast output method performed by a computer,
Generating a frame in which one frame of data for data broadcasting displayed in the BML browser is reduced in half in the horizontal direction or the vertical direction, and two reduced reduced frames are arranged in the reduction direction;
The generated frame is divided into two equal parts in the reduction direction, and each divided frame is doubled in the reduction direction to become two frames, and the two frames are output to the display device alternately in time. And steps to
A 3D-compatible data broadcast output method. In a 3D-compatible data broadcast output method performed by a computer,
The left eye image and the right eye image shrunk in half in the horizontal direction or the vertical direction are divided into two equal parts in the reduction direction for the left eye by dividing the video area into the reduction direction. Extracting the right image and the right eye image, and reducing each extracted image,
Generating a frame in which one frame of data for data broadcasting displayed on the BML browser is reduced in half in the reduction direction, and two reduced reduction frames are arranged in the reduction direction;
Superimposing each reduced video on each reduced frame of the frame;
The superimposed frame is divided into two equal parts in the reduction direction, and each divided frame is doubled in the reduction direction to form two frames, and the two frames are output to the display device alternately in time. And steps to
A 3D-compatible data broadcast output method. In a 3D-compatible data broadcast output method performed by a computer,
Generating a frame in which one frame of data for data broadcasting displayed in the BML browser is reduced in half in the horizontal direction or the vertical direction, and two reduced reduced frames are arranged in the reduction direction;
Left-eye video by dividing the video region composed of video data in which the left-eye video and the right-eye video shrunk in half in the reduction direction into two equal parts in the reduction direction Extracting the video for the right eye, and reducing each extracted video,
Superimposing each reduced video on each reduced frame of the frame;
The superimposed frame is divided into two equal parts in the reduction direction, and each divided frame is doubled in the reduction direction to form two frames, and the two frames are output to the display device alternately in time. And steps to
A 3D-compatible data broadcast output method.   A 3D-compatible data broadcast output program that causes a computer to execute each step in the 3D-compatible data broadcast output method according to any one of claims 4 to 6.

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