JP5267334B2 - 3D image display apparatus and 3D image display method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce a burden on eyes, and to obtain more natural three-dimensional video display by correctly forming an image of information video data even in the case that the information video data whose three-dimensional vision is not considered are superposed to three-dimensional video data. <P>SOLUTION: A three-dimensional video display apparatus includes: a video acquisition part 150 for acquiring three-dimensional video data 134, 140; a line sequential part 154 for generating three-dimensional display data 142 from the three-dimensional video data; a horizontal parallax vector derivation part 158 for deriving a horizontal parallax vector between a left eye image and a right eye image; an information image adjustment part 160 for generating a control signal 182 based on the derived horizontal parallax vector; an image superposition part 162 for superposing the information video data to the three-dimensional display data according to the control signal; and an image output part 164 for outputting the three-dimensional display data to which the information video data are superposed. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a stereoscopic video display device and a stereoscopic video display method capable of displaying stereoscopic video based on binocular parallax on a display.

  2. Description of the Related Art In recent years, stereoscopic image display devices that present two or more images with parallax on a display and perceive the viewer as if the object exists stereoscopically have attracted attention. There are various formats for stereoscopic video data for realizing such video display, and there are various display formats depending on the display even when the final display is reached. The stereoscopic video display device plays a role of converting the format of such stereoscopic video data into a display format (stereoscopic display data) adapted to the display.

  As an example of stereoscopic video data input to the stereoscopic video display device, a side-by-side method is used in which a left-eye video is displayed on the left half of the effective video and a right-eye video is displayed on the right half. In such a side-by-side method, the right-eye video and the left-eye video are individually captured by a pair of cameras, or adjusted so as to generate binocular parallax, and are separately formed as different videos. Further, as an example of a display, there is a display provided with polarizing filters having different polarization characteristics every other line (for each line).

  The stereoscopic video display device displays the left-eye video and right-eye video horizontal lines in such a side-by-side format alternately on each other (hereinafter simply referred to as line sequential processing) and displays them on a display having different polarization characteristics. 3D display data is generated. The observer can visually recognize the left-eye image shown in the alternate line with the left eye and the right-eye image with the right eye through the polarizing glasses, and recognize the stereoscopic image based on the binocular parallax.

  On the other hand, the stereoscopic video display device can display information video data related to the input stereoscopic video data, for example, an OSD (On Screen Display) indicating the broadcast channel if it is a television broadcast. For example, Patent Document 1 describes a technique for superimposing an OSD on an arbitrary position of a display capable of displaying a stereoscopic video.

Japanese Patent Laid-Open No. 9-23450

  However, when the stereoscopic video display device simply superimposes the information video data 10 on the stereoscopic video data divided into the right eye video and the left eye video as shown in FIG. In the subsequent line sequential processing, as shown in FIG. 20 (b), an unintended discontinuous image 12 is displayed, and the display content is not understood without connecting the image through the polarizing glasses. Emits light unnecessarily and places a burden on the eyes.

  In view of such a problem, the present invention, even when information video data that does not take stereoscopic vision into consideration is superimposed on stereoscopic video data, the information video data is correctly imaged so that the burden on the eyes is reduced. It is an object of the present invention to provide a stereoscopic video display device and a stereoscopic video display method capable of reducing the above and realizing a more natural stereoscopic video display.

In order to solve the above-described problem, the present invention includes a left-eye image and a right-eye image generated so as to generate a parallax, and an image acquisition unit that acquires stereoscopic image data generated in a side-by-side manner, and an acquisition and juxtaposed horizontal line of the left-eye and right-eye images in the stereoscopic image data alternately, and the line sequential unit for generating stereoscopic display data to be displayed on the display, the left eye image of the stereoscopic image data obtained And the right-eye image are divided into blocks of a predetermined size, and the corresponding blocks are shifted relative to each other in the horizontal direction to derive a horizontal shift amount that minimizes the difference between the evaluation values of the corresponding blocks. The calculated horizontal shift amount is the horizontal shift amount of each divided block, and the calculated average value of the horizontal shift amount of each block is the maximum. Values, and the horizontal shift amount derivation unit that derives a horizontal shift amount of the stereoscopic image data to any one of the values of the maximum value, the information image to be superimposed on each of the left eye image and the right eye image Regarding the data, the position of the information video data superimposed on the left-eye video is shifted twice the horizontal shift amount of the derived stereoscopic video data with respect to the position of the information video data superimposed on the right-eye video. An information video adjusting unit that generates a control signal so as to be shifted in the horizontal direction by an amount, a video superimposing unit that superimposes information video data on stereoscopic display data according to the control signal, and stereoscopic display data on which the information video data is superimposed And a video output unit that outputs the stereoscopic video display device .

Here, the horizontal shift amount of the left-eye video and the right-eye video of the stereoscopic video data generated by the side-by-side method is obtained, a control signal is generated based on the horizontal shift amount , and a stereoscopic view is generated according to the control signal. The information video data is superimposed on the stereoscopic display data that has been converted. That is, the information video data is superimposed on the stereoscopic display data after the line sequential processing. With such a configuration, when the horizontal lines of the left eye video and the right eye video in the stereoscopic video data generated by the side- by- side method are alternately juxtaposed, the appropriate parallax is generated when the stereoscopic display data to be displayed on the display is generated. Thus, it is possible to superimpose information video data . As described above, the information video data is correctly imaged as in the case of the stereoscopic video data, thereby reducing the burden on the eyes and realizing a more natural stereoscopic video display.

The present invention also includes a left-eye image and a right-eye image generated so as to generate a parallax , a video acquisition unit that acquires stereoscopic video data generated by a side-by-side method, and a left-hand side of the acquired stereoscopic video data. The eye image and the right eye image are divided into blocks of a predetermined size, the corresponding blocks are relatively shifted in the horizontal direction, and the horizontal shift amount that minimizes the difference between the evaluation values of the corresponding blocks is determined. The calculated horizontal shift amount is the horizontal shift amount of each divided block, and any one of the calculated average value, minimum value, and maximum value of the horizontal shift amount of each block is calculated. a horizontal shift amount derivation unit that derives a single value as the horizontal shift amount of the stereoscopic image data or, based on the horizontal shift amount of the stereoscopic image data derived, stereoscopic image data Or generates information superimposed data from the information image data to correspond to the left-eye and right-eye images that provide information about the operation display of the stereoscopic display data to be displayed on the display, the information superimposed data to the left-eye and right-eye images and a information image data storage unit for generating control signals for superimposing a position having a shift amount of the same horizontal direction as the horizontal shift amount of the stereoscopic image data, the information superimposed data to the stereoscopic image data according to the control signal Predetermined horizontal lines are extracted from the left and right eye images of the 3D image data on which the information superimposition data is superimposed , and the extracted horizontal lines are alternately juxtaposed and displayed on the display. A line sequential unit for generating stereoscopic display data for output, and a video output unit for outputting superimposed stereoscopic display data Video superimposing unit provides a stereoscopic image display apparatus characterized by not overlapping the information overlay data in the horizontal line of the left-eye and right-eye images are not extracted in the line sequential unit.

Here, the horizontal shift amount between the left eye video and the right eye video of the stereoscopic video data is obtained, a control signal is generated based on the horizontal shift amount , and the left eye video and the right eye video of the stereoscopic video data are generated. After superimposing the information superimposing data respectively on the video data, line sequential processing is performed for each stereoscopic video data. That is, line information processing is performed after superimposing information video data on stereoscopic video data. With this configuration, binocular parallax can be imparted to information video data that does not take stereoscopic vision into consideration, and the viewer can perceive the information video data stereoscopically. As described above, the information video data is correctly imaged as in the case of the stereoscopic video data, thereby reducing the burden on the eyes and realizing a more natural stereoscopic video display.

When the stereoscopic video data is formed by the side-by-side method, the line sequential unit alternately extracts video lines corresponding to each line of the final stereoscopic display data one line at a time from the left eye video and the right eye video. In each eye image, only odd lines or even lines are used for stereoscopic display data. Here, for example, the video superimposing unit avoids superimposing information video data corresponding to even-numbered lines that are not used on one eye video that uses only odd-numbered lines, thereby avoiding unnecessary processing and reducing the load. Can be achieved.

The present invention also includes a step of acquiring stereoscopic video data generated by a side-by-side method, including a left-eye video and a right-eye video generated so as to generate parallax, and a left-eye video in the acquired stereoscopic video data And a step of generating stereoscopic display data to be displayed on the display by alternately juxtaposing the horizontal lines of the right-eye video, and the left-eye video and the right-eye video of the acquired stereoscopic video data into blocks of a predetermined size Divide and shift the corresponding blocks relatively in the horizontal direction to derive the horizontal shift amount that minimizes the difference in the evaluation value between the corresponding blocks, and divide the derived horizontal shift amount The horizontal shift amount of each block that has been calculated, and any one of the average value, the minimum value, and the maximum value of the calculated horizontal shift amount of each block For the horizontal shift amount of the stereoscopic video data, and for the information video data to be superimposed on each of the left eye video and the right eye video, the position of the information video data superimposed on the left eye video is Generating a control signal so that the position of the information video data superimposed on the eye video is shifted in the horizontal direction by a shift amount twice the horizontal shift amount of the derived stereoscopic video data; There is provided a stereoscopic video display method comprising: superimposing information video data on stereoscopic display data according to a control signal; and outputting stereoscopic display data on which the information video data is superimposed .

In this stereoscopic video display method, the horizontal shift amount of the left-eye video and right-eye video of the stereoscopic video data generated by the side-by-side method is obtained, a control signal is generated based on the horizontal shift amount, and the control signal Accordingly, the information video data is superimposed on the stereoscopic display data converted to be stereoscopically viewable. That is, the information video data is superimposed on the stereoscopic display data after the line sequential processing. With such a configuration, when the horizontal lines of the left eye video and the right eye video in the stereoscopic video data generated by the side-by-side method are alternately juxtaposed, the appropriate parallax is generated when the stereoscopic display data to be displayed on the display is generated. Thus, it is possible to superimpose information video data. As described above, the information video data is correctly imaged as in the case of the stereoscopic video data, thereby reducing the burden on the eyes and realizing a more natural stereoscopic video display.

Further, the present invention includes a step of acquiring stereoscopic video data generated by a side-by-side method, including a left-eye video and a right-eye video generated so as to generate parallax, and a left-eye video of the acquired stereoscopic video data And the right-eye image are divided into blocks of a predetermined size, and the corresponding blocks are shifted relative to each other in the horizontal direction to derive a horizontal shift amount that minimizes the difference between the evaluation values of the corresponding blocks. The derived horizontal shift amount is set as the horizontal shift amount of each divided block, and any one of the calculated average value, minimum value, and maximum value of the horizontal shift amount of each block is calculated. One value is derived as the horizontal shift amount of the stereoscopic video data, and the stereoscopic video data or display is determined based on the horizontal shift amount of the derived stereoscopic video data. Information superposition data corresponding to the left eye video and right eye video is generated from the information video data indicating information related to the operation display of the stereoscopic display data displayed on the ray, and the information superposition data is generated for the left eye video and the right eye video Generating a control signal for superimposing at a position having the same horizontal shift amount as the horizontal shift amount of the stereoscopic video data, superimposing the information superimposing data on the stereoscopic video data according to the control signal, and information Predetermined horizontal lines are extracted from left-eye video and right-eye video of stereoscopic video data with superimposed data, and the extracted horizontal lines are alternately juxtaposed to generate stereoscopic display data for display on a display. A step of superimposing the information superimposition data on the stereoscopic video data. -Up provides a stereoscopic image display method characterized by not superimposing information superimposed data in the horizontal line of the left-eye and right-eye images are not extracted in the step of generating a three-dimensional display data.

In this stereoscopic video display method, the horizontal shift amount between the left eye video and the right eye video of the stereoscopic video data is obtained, a control signal is generated based on the horizontal shift amount, and the left eye video of the stereoscopic video data is obtained. Then, after superimposing the information superimposition data on the right-eye video, line sequential processing is performed for each stereoscopic video data. That is, line information processing is performed after superimposing information video data on stereoscopic video data. With this configuration, binocular parallax can be imparted to information video data that does not take stereoscopic vision into consideration, and the viewer can perceive the information video data stereoscopically. As described above, the information video data is correctly imaged as in the case of the stereoscopic video data, thereby reducing the burden on the eyes and realizing a more natural stereoscopic video display .

When the stereoscopic video data is formed by the side-by-side method, the line sequential unit alternately extracts video lines corresponding to each line of the final stereoscopic display data one line at a time from the left eye video and the right eye video. In each eye image, only odd lines or even lines are used for stereoscopic display data. Here, for example, the video superimposing unit avoids superimposing information video data corresponding to even-numbered lines that are not used on one eye video that uses only odd-numbered lines, thereby avoiding unnecessary processing and reducing the load. Can be achieved .

According to the stereoscopic video display device and the stereoscopic video display method of the present invention, even when information video data not considering stereoscopic vision is superimposed on stereoscopic video data, the information video data is correctly imaged. Thus, it is possible to reduce the burden on the eyes and realize a more natural stereoscopic video display.

It is the functional block diagram which showed the schematic function of the stereoscopic video display apparatus by 1st Embodiment. It is explanatory drawing for demonstrating the display structure of a display. It is explanatory drawing for demonstrating the format of stereoscopic video data. It is explanatory drawing for demonstrating operation | movement of a line sequential part. It is explanatory drawing for demonstrating operation | movement of a line sequential part. It is explanatory drawing which showed derivation | leading-out of a horizontal parallax vector. It is explanatory drawing for demonstrating a control signal. It is the functional block diagram which showed the function of the image | video superimposition part. It is explanatory drawing which showed the stereoscopic display data on which the information video data was superimposed. It is the flowchart which showed the whole flow of the three-dimensional video display method. It is the functional block diagram which showed the schematic function of the stereoscopic video display apparatus by 2nd Embodiment. It is explanatory drawing for demonstrating operation | movement of an information video data storage part. It is explanatory drawing for demonstrating operation | movement of an information video data storage part. It is the functional block diagram which showed the function of the image | video superimposition part. It is the functional block diagram which showed the function of the image | video superimposition part. It is explanatory drawing for demonstrating operation | movement of a video superimposition part. It is explanatory drawing for demonstrating operation | movement of a line sequential part. It is explanatory drawing for demonstrating operation | movement of a line sequential part. It is the flowchart which showed the whole flow of the three-dimensional video display method. It is explanatory drawing for demonstrating the superimposition process of the information video data in the past.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in the embodiment are merely examples for facilitating understanding of the invention, and do not limit the present invention unless otherwise specified. In the present specification and drawings, elements having substantially the same function and configuration are denoted by the same reference numerals, and redundant description is omitted, and elements not directly related to the present invention are not illustrated. To do.

(First embodiment: stereoscopic image display device 100)
FIG. 1 is a functional block diagram illustrating schematic functions of the stereoscopic video display device 100. As shown in FIG. 1, the stereoscopic video display apparatus 100 is connected to a display 110, and includes a video acquisition unit 150, a video processing unit 152, a line sequential unit 154, an information video data storage unit 156, and a horizontal parallax vector derivation. Unit (horizontal shift amount deriving unit) 158, an information video adjusting unit 160, a video superimposing unit 162, and a video output unit 164. Although the case where the display 110 and the stereoscopic video display device 100 are configured separately will be described here, they may be configured integrally. Hereinafter, the display 110 that enables stereoscopic display will be described prior to the stereoscopic video display device 100.

  FIG. 2 is an explanatory diagram for explaining a display configuration of the display 110. Since the display surface 112 of the display 110 is provided with polarizing filters having different polarization characteristics every other line (for each line), the odd lines 114 and the even lines 116 have different polarization characteristics. An observer who observes the display 110 displays, for example, stereoscopic display data (left-eye stereoscopic display data 120) displayed on the odd-numbered line 114 on the even-numbered line 116 with the left eye through the polarized glasses 118 having different polarization characteristics on the left and right. The stereoscopic display data (right-eye stereoscopic display data 122) can be visually recognized by the right eye, and an object can be perceived at an imaging position 124 different from the display surface 112 by stereoscopic video based on binocular parallax.

  As shown in FIG. 2, the stereoscopic display data displayed on the display surface 112 of the display 110 includes left-eye stereoscopic display data 120 corresponding to the left-eye image and right-eye stereoscopic display data 122 corresponding to the right-eye image in line units. Are displayed alternately. The object included in the stereoscopic display data can be displayed in either stereoscopic view (crossing method) or parallel view (parallel method). The object included in the left-eye stereoscopic display data 120 and the right-eye stereoscopic display data 122 By shifting the position in the horizontal direction relative to the included object relatively to the left and right, the object can be imaged at either the back side or the near side of the display surface 112. At this time, if the shift amount in the horizontal direction is set to 0, the object is imaged on the display surface 112 of the display 110.

  In FIG. 2 and the drawings used in the following description, the number of horizontal lines is 12 for ease of understanding, but the number of lines depends on the structure of the display 110, the number of scanning lines of stereoscopic video data, and the like. Can be set arbitrarily.

  The video acquisition unit 150 of the stereoscopic video display device 100 converts the stereoscopic video data obtained by dividing the left-eye video and the right-eye video for realizing stereoscopic vision by binocular parallax into an external broadcast station 126 or a communication network (Internet). Or LAN) 128. In addition, stereoscopic video data can be acquired internally from a recording medium such as a DVD or a Blu-ray disc.

  FIG. 3 is an explanatory diagram for describing a format of stereoscopic video data. There are a plurality of formats of stereoscopic video data that can be acquired by the video acquisition unit 150, and parameters such as the number of pixels may be different in each format. Here, as a typical example, as shown in FIG. 3A, a left-eye image (left-eye stereoscopic image data) 130 for causing the left eye to visually recognize the left half of the effective image and a right eye to the right half are shown. 3D image data 134 according to the side-by-side method having a right-eye image (right-eye 3D image data) 132 for allowing the left eye to visually recognize the image as shown in FIG. 3B. It is assumed that the stereoscopic video data 140 according to the top-and-bottom method (abbe-and-bello method) having the left-eye image 136 for the right eye and the right-eye image 138 for the right eye to visually recognize in the lower half is used. The effective video is a video obtained by removing a non-display area (blank period) from the entire video. In the case of the side-by-side method, the right-eye stereoscopic video data 134 for allowing the right eye to visually recognize is arranged in the left half of the effective video, and the left-eye stereoscopic video data 132 for allowing the left eye to visually recognize the right eye is arranged in the right half of the effective video. The stereoscopic video data 134 may be used. Further, in the case of the top-and-bottom method, right-eye stereoscopic video data 138 for allowing the right eye to visually recognize is displayed in the upper half of the effective image, and left-eye stereoscopic video data 136 for allowing the left eye to be viewed in the lower half of the effective image. The stereoscopic video data 140 to be arranged may be used.

  In such stereoscopic image data 134 and 140, the left eye images 130 and 136 and the right eye images 132 and 138 are individually captured by a pair of cameras, or adjusted so that binocular parallax occurs. . However, the left-eye image 130 and the right-eye image 132 of the stereoscopic image data 134 according to the side-by-side method of the present embodiment have the same vertical resolution as the finally displayed stereoscopic display data, but the horizontal resolution is halved. Has been reduced. Accordingly, when the number of pixels of the effective image of the entire screen is 1920 × 1080, the number of pixels of the left eye image 130 and the right eye image 132 is 960 × 1080.

  The video processing unit 152 performs RGB processing (γ correction and color correction), enhancement processing, noise reduction processing, and the like on the side-by-side and top-and-bottom stereoscopic video data 134 and 140 acquired through the video acquisition unit 150. Perform video signal processing. The stereoscopic video data 134 and 140 that have undergone predetermined video signal processing are held in a memory (not shown).

  The line sequential unit 154 controls the read / write address of the memory that holds the stereoscopic video data 134 and 140 on which the predetermined video signal processing has been performed, thereby horizontally generating the left-eye video and the right-eye video in the stereoscopic video data 134 and 140. Stereo display data to be displayed on the display 110 is generated by arranging the lines alternately.

  4 and 5 are explanatory diagrams for explaining the operation of the line sequential unit 154. In particular, FIG. 4 shows the stereoscopic video data 134 from the side-by-side format, and FIG. 5 shows the stereoscopic video data 140 from the top-and-bottom format. Display data 142 is generated. As shown in FIG. 4A, when the video acquisition unit 150 acquires the side-by-side stereoscopic video data 134, the line sequential unit 154 includes the odd-line video L1, L3, L5, L7, L9 and L11 and the even-line images R2, R4, R6, R8, R10, and R12 of the right-eye image 132 are extracted, and the left ends of the lines of each eye image are aligned and rearranged alternately.

  Specifically, the first-line image L1 of the left-eye image 130 in FIG. 4A is changed to the first-line image L1 ′ of the stereoscopic display data 142 in FIG. 4B, and the right-eye image in FIG. The video R2 of the second line of the video 132 is converted into the video R2 ′ of the second line of the stereoscopic display data 142 in FIG. Therefore, the even-line images L2, L4, L6, L8, L10, and L12 of the left-eye image 130 and the odd-line images R1, R3, R5, R7, R9, and R11 of the right-eye image 132 are not used. . Here, odd lines are extracted from the left eye image 130 and even lines are extracted from the right eye image 132, but of course, even lines may be extracted from the left eye image 130 and odd lines may be extracted from the right eye image 132.

  However, since the horizontal resolution of each eye image of the stereoscopic video data 134 is ½ of the stereoscopic display data 142, when generating the stereoscopic display data 142 from the stereoscopic video data 134, the horizontal resolution is doubled. It must be enlarged. Generation of a new pixel accompanying such horizontal resolution enlargement can use linear interpolation or other filtering. The horizontal resolution magnification is appropriately adjusted according to the format of the stereoscopic video data 134 or the ratio of the number of pixels in the horizontal direction between each eye image of the stereoscopic video data 134 and the stereoscopic display data 142.

  Further, as shown in FIG. 5A, when the video acquisition unit 150 acquires the top-and-bottom stereoscopic video data 140, the line sequential unit 154 displays the video L1, L2, and the video L1, L2, all lines of the left-eye video 136. L3, L4, L5, and L6 and the images R1, R2, R3, R4, R5, and R6 of all lines of the right eye image 138 are alternately rearranged with the left ends of the lines aligned. Accordingly, the first line image L1 of the left eye image 136 in FIG. 5A is changed to the first line image L1 of the stereoscopic display data 142 in FIG. 5B, and the right eye image 132 in FIG. The image R1 of the first line is transferred to the image R1 of the second line of the stereoscopic display data 142 in FIG. 5B without executing enlargement processing or reduction processing. As described above, since there is no line that is not used in the top-and-bottom method and there is no enlargement of the horizontal resolution, it is possible to suppress the loss of information.

  The information video data storage unit 156 generates information video data 180 indicating information relating to operation display indicating information relating to the stereoscopic video data 134 and 140 or information relating to operation display of the stereoscopic display data 142 displayed on the display 110. For example, the information video data 180 related to the stereoscopic video data 134 and 140 specifies a program or content received by the stereoscopic video display device 100 from the broadcasting station 126 or via the communication network 128 such as the Internet, LAN, or dedicated line. An OSD (On Screen Display) 180 that visualizes information indicating a channel, a program title, a display mode, and the like. In the stereoscopic video display device 100, for example, when a channel of a broadcast program is changed during operation of the remote controller 144, the channel after the change is displayed on the display 110 as information video data 180 for confirmation. In addition, by displaying information on the program together with the stereoscopic display data 142 on the display 110, the convenience of the user is improved. In addition, the information video data 180 includes information related to operation display such as “play” and “stop” when a medium on which a stereoscopic video is recorded is played back by a player. In that case, the operation display such as “play” and “stop” is displayed on the display 110 together with the stereoscopic display data 142 to improve the convenience of the user. The information video data storage unit 156 is not limited to a configuration that generates information indicating a channel, a program title, a display mode, and the like, and may be configured to hold the above information in advance.

  The horizontal parallax vector deriving unit 158 derives a horizontal parallax vector between the left eye video and the right eye video of the stereoscopic video data 134 and 140 acquired by the video acquisition unit 150. In the present embodiment, the viewer is made to perceive a stereoscopic video by presenting stereoscopic video data 134 and 140 having parallax between the left and right eyes. Accordingly, the left-eye video object and the right-eye video object are provided with horizontal parallax, and the horizontal shift between the left-eye video object and the right-eye video object can be used as a horizontal parallax vector. The horizontal parallax vector deriving unit 158 divides the left eye video and the right eye video into a plurality of blocks of the same size, and relatively shifts corresponding blocks of the left eye video and the right eye video to obtain a difference in evaluation value. It is possible to derive a horizontal disparity vector (horizontal disparity shift amount and shift direction) of an object with a high occupancy in each block by selecting a shift amount that minimizes.

  FIG. 6 is an explanatory diagram showing the derivation of the horizontal parallax vector. For example, when the video acquisition unit 150 acquires the side-by-side stereoscopic video data 134, the size of the left-eye video 130 and the right-eye video 132 is 960 × 1080. The horizontal parallax vector deriving unit 158 divides the left eye image 130 and the right eye image 132 into a plurality of blocks 146 having a predetermined size, for example, 240 × 180 pixels as shown in FIG. The blocks corresponding to the block 146 are extracted and compared. Here, an example in which the blocks 146a and 146b shown in FIG.

As shown in FIG. 6C, the horizontal parallax vector deriving unit 158 moves the other block 146b relative to one block 146a of the extracted pair of blocks 146 in the horizontal direction by a predetermined number of pixels (here, (30 pixels) Stepwise shift is performed, and a difference between evaluation values in a central region (here, a region of 30 × 180 pixels indicated by hatching) 148 of the overlapping portion of both blocks 146a and 146b is obtained. Here, the numerical value of the subscript attached to the state P indicates the shift amount of the block 146b with respect to the block 146a in terms of the number of pixels. A subscript sign attached to the state P indicates a shift direction. That is, the minus of the subscript indicates a shift in the left direction. Then, a state in which the evaluation value is minimized, for example, a shift amount of the state P ₃₀ (30 pixels) and the shift direction (right) is horizontal disparity vector. Here, the block 146b for the right eye image is shifted with respect to the block 146a for the left eye image, but the other block may be shifted with reference to any block of the left eye image and the right eye image.

The evaluation value of the central region 148 is the value of one or more evaluation items selected from R (Red), G (Green), B (Blue), luminance, color difference, and saturation. Here the fact that the difference between the evaluation value is small, indicating that the difference between the video with each other less in each of the blocks as shown in the state P ₃₀ in FIG. 6 (c), i.e. the image is similar, and overlap.

  When the shift amount and the shift direction are different for each of the plurality of divided blocks 146, the horizontal parallax vector deriving unit 158 sets the average value, the minimum value, or the maximum value as the horizontal parallax vector.

  One or a plurality of objects having different imaging positions exist in the stereoscopic video data 134. In the present embodiment, the evaluation value is compared for each block 146 to derive the horizontal parallax vector. Therefore, when there are a plurality of objects having different imaging positions, the respective blocks 146 indicate different horizontal parallax vectors. There is. On the other hand, the information video data 180 should be arranged at an appropriate position that does not impair the stereoscopic effect of the object. Here, the information video data 180 is imaged at a predetermined position such as an average value, a minimum value (imaging position is the farthest) or a maximum value (imaging position is the foremost) of the horizontal parallax vectors of each block, thereby creating an object. Thus, the information video data 180 can be appropriately displayed without impairing the stereoscopic effect, and a stereoscopic image without a sense of incongruity can be realized. Such a horizontal parallax vector can be derived in the same procedure even in top-and-bottom stereoscopic video data 140.

  The information video adjustment unit 160 refers to the information acquired by the video acquisition unit 150 while referring to the horizontal synchronization signal and the vertical synchronization signal of the stereoscopic display data 142 based on the horizontal parallax vector derived by the horizontal parallax vector deriving unit 158. The horizontal position of the video data 180 in each horizontal line is adjusted, and a control signal 182 for superimposing the information video data 180 on the stereoscopic display data 142 is generated. The control signal 182 is a signal that can specify an arbitrary section from an arbitrary position of the horizontal synchronization signal, and represents a position at which the information video data 180 is superimposed on the stereoscopic display data 142.

  For example, in the horizontal parallax vector deriving unit 158, the horizontal parallax vector generated from the right-eye video and the left-eye video having a horizontal resolution that is 1/2 that of the side-by-side stereoscopic display data 140 has an average value of 20 pixels. Think about the case. In that case, the information video adjustment unit 160 needs to enlarge the horizontal resolution of the stereoscopic video data 134 to twice, and the information video is adjusted at a position having a parallax of 40 pixels, which is twice the horizontal resolution. A control signal 182 is generated so that the images of the left and right lines of the data 180 are superimposed. Therefore, adjacent lines of the information video data 180 superimposed by the video superimposing unit 162 described later are shifted by a pixel corresponding to a shift amount twice as large as the horizontal parallax vector derived by the horizontal parallax vector deriving unit 158. Become.

  FIG. 7 is an explanatory diagram for explaining the information video data 180 and the control signal 182. For example, the information video data storage unit 156 holds information video data 180 such as “201 ch: outer space” indicating a channel number and a program title as shown in FIG. Further, the position with respect to the entire display line shown in FIG. 7B is a superposition position of the information video data 180 with respect to the display surface of the display 110, and is represented by the control signal 182. Here, in each line of FIG. 7B, the hatched portion indicates the portion where the information video data 180 is superimposed, and the portion other than the hatched portion does not overlap the information video data 180, that is, the stereoscopic display data 142 is displayed. The part displayed as it is is shown. Here, since the horizontal parallax vector is not yet reflected, the starting point of the control signal 182 of each line is equal between adjacent lines, and no parallax occurs.

  Subsequently, the information image adjustment unit 160 applies the control signal 182 for the odd lines corresponding to the left-eye image to the right direction indicated by an arrow in FIG. 7C for 40 pixels obtained by doubling the horizontal parallax vector in the horizontal direction. And reading from the information video data storage unit 156 is started. By doing so, the information video data 180 has parallax as shown in FIG. Further, the position with respect to the overall display line indicated by the oblique lines in FIG. 7D indicates the position where the information video data 180 shown in FIG. 7C is output to the display surface of the display 110. Then, the information video adjustment unit 160 generates a control signal 182 corresponding to the position indicated by the oblique lines in FIG.

  As described above, in the stereoscopic video based on the binocular parallax, the imaging position where the information video data 180 is displayed can be adjusted according to the horizontal parallax vector. If the maximum value is used instead of the average value of the horizontal parallax vectors, the information video data 180 is arranged behind all objects when the minimum value is used in front of all objects in the stereoscopic video data 134 and 140. Therefore, natural 3D image display can be realized.

  Further, in the above-described embodiment, the example in which the imaging position of the information video data 180 is set in advance to the position where the average value, the minimum value, or the maximum value of the horizontal parallax vector is set is described. The 180 imaging positions can be individually set by the user or selected from a plurality of imaging positions prepared in advance.

  By the way, when the information video data 180 is superimposed on the position of the average value, minimum value, or maximum value of the horizontal parallax vector as described above, the information video data 180 is linked each time the average value, minimum value, or maximum value is changed. The image position changes, and it may be difficult to visually recognize the information video data 180. Therefore, for example, the information video adjustment unit 160 further applies a low-pass filter or the like to the average value, the minimum value, or the maximum value of the horizontal parallax vector, so that the change in the position of the information video data 180 is slowed down. It can also be stabilized.

  In addition, as described above, when the imaging position of the information video data 180 is an average value of the horizontal parallax vector or when the information video data 180 is fixed at a predetermined position, the information video is displayed on the object to be imaged before the imaging position. When the data 180 is superimposed, a phenomenon may occur in which only a portion of the object on which the information video data 180 is superimposed appears to be recessed. At this time, the information video adjustment unit 160 adjusts the imaging position of the information video data 180 to be in front of the object, or changes the superposition order of the information video data 180 and the stereoscopic display data 142 to change the stereoscopic display data 142 into information. It can be arranged before the video data 180 or the transmittance of the information video data 180 can be changed.

  The video superimposing unit 162 superimposes the information video data 180 on the stereoscopic display data generated by the line sequential unit 154 according to the control signal 182 generated by the information video adjusting unit 160.

  FIG. 8 is a functional block diagram illustrating the function of the video superimposing unit 162, and FIG. 9 is an explanatory diagram illustrating the stereoscopic display data 142 on which the information video data 180 is superimposed. Referring to FIG. 8, stereoscopic display data 142 and information video data 180 are input to two input terminals of the video superimposing unit 162, and a control signal 182 is input to a switching input. Accordingly, the video superimposing unit 162 outputs the stereoscopic display data 142 to the video output unit 164 during a period in which the control signal 182 is off (a period other than that indicated by the hatched portion in FIG. 8A) and a period in which the control signal 182 is on (FIG. 8). During the period indicated by the hatched portion in FIG. 5A, information video data 180 is output to the video output unit 164 instead of the stereoscopic display data 142. In this way, stereoscopic display data 142 on which the information video data 180 is superimposed is generated as shown in FIG.

  Further, the video superimposing unit 162 not only exclusively switches the stereoscopic display data 142 and the information video data 180, but also adds the information video data 180 to the stereoscopic display data 142 with an arbitrary transmittance while the control signal 182 is on. You may superimpose. With this configuration, it is possible to prevent the stereoscopic display data 142 as the background from being completely invisible by the information video data 180, and to effectively display both data in a stereoscopic manner.

  The video output unit 164 outputs the stereoscopic display data 142 on which the information video data 180 is superimposed by the video superimposing unit 162 to the display 110 or other externally connected device. As described with reference to FIG. 2, the display surface 112 of the display 110 is provided with polarization filters having different polarization characteristics every other line (for each line). Therefore, the stereoscopic display data 142 in which the left eye image and the right eye image are juxtaposed as shown in FIG. 9 can be displayed with appropriate polarization characteristics. By observing the left eye image with the left eye and the right eye image with the right eye, the observer can perceive a sense of depth by wearing dedicated polarizing glasses 118.

  In the stereoscopic video display device 100 described above, a horizontal parallax vector between the left-eye video and right-eye video of the stereoscopic video data is obtained, a control signal is generated based on the horizontal parallax vector, and the stereoscopic video that has been converted to be stereoscopically viewable. The information video data is superimposed on the display data. With this configuration, the information video data is correctly displayed on the display 110, and the operability of the observer can be improved. Further, binocular parallax can be imparted to information video data that does not take stereoscopic vision into consideration, and information video data can be perceived stereoscopically by an observer. As described above, the information video data is correctly imaged as in the case of the stereoscopic video data, thereby reducing the burden on the eyes and realizing a more natural stereoscopic video display.

(3D image display method)
Next, a stereoscopic video display method for displaying stereoscopic video by binocular parallax using the stereoscopic video display device 100 described above will be specifically described.

  FIG. 10 is a flowchart showing the overall flow of the stereoscopic image display method. When the video acquisition unit 150 of the stereoscopic video display apparatus 100 acquires the stereoscopic video data 134 and 140 (YES in S200), the video processing unit 152 performs video processing such as RGB processing (γ correction and color correction), enhancement processing, noise reduction processing, and the like. Signal processing is performed (S202). The line sequential unit 154 alternately displays the horizontal lines of the left eye video and the right eye video in the stereoscopic video data 134 and 140 subjected to the video signal processing in this manner, and displays the stereoscopic display data 142 for display on the display 110. Generate (S204).

  Following or in parallel with the processing described above, the information video data storage unit 156 generates information video data 180 indicating information related to operation display of the stereoscopic video data 134 and 140 (S206). The horizontal parallax vector deriving unit 158 derives a horizontal parallax vector between the left eye video and the right eye video (S208), and the information video adjusting unit 160 based on the derived horizontal parallax vector, the information video data storage unit 156. The horizontal direction position of each horizontal line of the generated information video data 180 is adjusted to generate a control signal 182 (S210).

  Finally, the video superimposing unit 162 superimposes the information video data 180 on the stereoscopic display data 142 according to the control signal 182 (S212), and the video output unit 164 displays the stereoscopic display data 142 on which the information video data 180 is superimposed on the display 110. Output (S214). Such a series of processing is repeated until the three-dimensional video data 134 and 140 disappear, and the observer can view the three-dimensional video in which the information video data 180 is displayed at an appropriate imaging position.

(Second embodiment: stereoscopic image display apparatus 300)
In the first embodiment, the configuration in which the information video data 180 is superimposed on the stereoscopic display data 142 that has been subjected to the line sequential processing has been described. In the second embodiment, first, the information video data 180 is superimposed on the left-eye video and the right-eye video of the stereoscopic video data 134 and 140, and then the line sequential processing is performed.

FIG. 11 is a functional block diagram illustrating schematic functions of the stereoscopic video display device 300. As shown in FIG. 11, the stereoscopic video display device 300 is connected to a display 110, and includes a video acquisition unit 150, a video processing unit 152, a horizontal parallax vector derivation unit (horizontal shift amount derivation unit) 158, an information video. The data storage unit 310, the video superimposing unit 312, the line sequential unit 314, and the video output unit 164 are configured.

  As described in the first embodiment, the video acquisition unit 150 acquires the stereoscopic video data 134 and 140 obtained by dividing the left-eye video and the right-eye video for realizing stereoscopic viewing by binocular parallax from the outside. To do. The video processing unit 152 performs video signal processing such as RGB processing (γ correction or color correction), enhancement processing, noise reduction processing, etc. on the input side-by-side or top-and-bottom stereoscopic video data 134 and 140. I do. The horizontal parallax vector deriving unit 158 divides the left eye video and the right eye video into a plurality of blocks to derive a horizontal parallax vector. In the second embodiment, as described below, the information video data 180 is superimposed in advance before the stereoscopic video data 134 and 140 are subjected to line sequential processing.

  Based on the horizontal parallax vector derived by the horizontal parallax vector deriving unit 158, the information video data storage unit 310 includes information superposition data 184 in which the information video data 180 is associated with the left eye video and the right eye video, and a control signal 182. And generate

  12 and 13 are explanatory diagrams for explaining the operation of the information video data storage unit 310. In particular, FIG. 12 shows a case where the video acquisition unit 150 acquires the side-by-side stereoscopic video data 134, and FIG. The case where the acquisition unit 150 acquires the top-and-bottom stereoscopic video data 140 is illustrated.

  When the video acquisition unit 150 acquires the side-by-side stereoscopic video data 134, the information video data storage unit 310 generates the information video data 180 illustrated in FIG.

  In addition, the information video data storage unit 310 calculates a position where the information video data 180 is superimposed on the left eye video and a position where the information video data 180 is superimposed on the right eye video while referring to the horizontal synchronization signal and the vertical synchronization signal of the stereoscopic display data 142. Thus, the information superimposition data 184 shown in FIG. Further, the information video data storage unit 310 generates a control signal 182 corresponding to the position with respect to the entire display line indicated by the hatched portion in FIG. However, the information video data storage unit 310 sets the superposition start position of the information superposition data 184 in the left eye video from the superposition start position of the information superposition data 184 in the right eye video as indicated by an arrow in FIG. Shift by the pixel corresponding to the vector. Binocular parallax can be imparted to the stereoscopic video data 134 through such a control signal 182.

  On the other hand, when the video acquisition unit 150 acquires the top-and-bottom stereoscopic video data 140, the information video data storage unit 310 generates the information video data 180 illustrated in FIG.

  Further, the information video data storage unit 310 extracts a portion corresponding to the odd line of the information video data 180 shown in FIG. 13A, and juxtaposes it on the top of the display line of the top-and-bottom method, Corresponding portions are extracted and juxtaposed below the top and bottom display lines.

  Further, the information video data storage unit 310 refers to the horizontal synchronization signal and the vertical synchronization signal of the stereoscopic display data 142, and displays the information video data 180 juxtaposed with the odd lines on the upper side and the even lines on the lower side. The position superimposed on the right eye image and the position superimposed on the right eye image are calculated to generate the information superimposed data 184 shown in FIG. Then, the information video data storage unit 310 generates a control signal 182 corresponding to the position with respect to the entire display line indicated by the hatched portion in FIG. However, the information video data storage unit 310 sets the superimposition start position of the information superposition data 184 in the left eye video from the superposition start position of the information superposition data 184 in the right eye video as indicated by an arrow in FIG. Shift by vector. In this way, binocular parallax can be given to the stereoscopic video data 140.

  The video superimposing unit 312 superimposes the information superimposing data 184 on the stereoscopic video data 134 and 140 according to the control signal 182 generated by the information video data storage unit 310.

  14 and 15 are functional block diagrams showing the functions of the video superimposing unit 312. In particular, FIG. 14 shows a case where the video acquisition unit 150 acquires the side-by-side stereoscopic video data 134, and FIG. Shows the case where the top-and-bottom stereoscopic video data 140 is acquired.

  Referring to FIG. 14A, side-by-side stereoscopic video data 134 and information superimposition data 184 are input to two input terminals of the video superimposing unit 312, and a control signal 182 is input to a switching input. Therefore, the video superimposing unit 312 outputs the stereoscopic video data 134 to the line sequential unit 314 during a period in which the control signal 182 is off (a period other than the shaded portion shown in FIG. During the hatched portion indicated by a), the information superimposition data 184 is output to the line sequential unit 314 instead of the stereoscopic video data 134. In this way, stereoscopic video data 134 on which the information superimposition data 184 is superimposed is generated as shown in FIG.

  Referring to FIG. 15A, as in FIG. 14, the top and bottom stereoscopic video data 140 and the information superimposition data 184 are input to the two input terminals of the video superimposing unit 312, and the control signal 182 is input to the switching input. Has been. Therefore, the video superimposing unit 312 outputs the stereoscopic video data 140 to the line sequential unit 314 during a period in which the control signal 182 is off (a period other than the shaded portion shown in FIG. 15A), and is on (FIG. 15 ( During the hatched portion indicated by a), the information superimposition data 184 is output to the line sequential unit 314 instead of the stereoscopic video data 140. In this way, stereoscopic video data 140 on which the information superimposition data 184 is superimposed is generated as shown in FIG.

  In addition, the video superimposing unit 312 not only exclusively switches the stereoscopic video data 134 and 140 and the information superimposing data 184, but also transmits information to the stereoscopic video data 134 and 140 at an arbitrary degree of transparency while the control signal 182 is on. The superimposition data 184 may be superimposed. With such a configuration, it is possible to prevent the stereoscopic display data 142 as the background from being completely invisible due to the information video data 180 finally displayed on the display 110, and to effectively display both data in a stereoscopic manner.

  Further, when the video acquisition unit 150 acquires the side-by-side stereoscopic video data 134, the video superimposing unit 312 adds the information superimposition data 184 to the horizontal line of the left eye video or the right eye video that is not used in the line sequential unit 314. It is not necessary to superimpose.

  FIG. 16 is an explanatory diagram for explaining the operation of the video superimposing unit 312. When the video acquisition unit 150 acquires the side-by-side stereoscopic video data 134, the line sequential unit 314 displays video lines corresponding to each line of the final stereoscopic display data 142, one line at a time from the left eye video and the right eye video. Since the images are alternately extracted, only odd lines or even lines are used for the stereoscopic display data 142 in each eye image. Here, for example, the video superimposing unit 312 does not superimpose information superimposition data 184 corresponding to even-numbered lines that are not used as shown in FIG. 16 on one eye video (here, the left-eye video) that uses only odd-numbered lines. By making (missing), useless processing can be avoided and the load can be reduced.

  The line sequential unit 314 alternately displays the horizontal display data 142 for displaying on the display 110 by juxtaposing the horizontal lines of the left eye video and the right eye video of the stereoscopic video data 134 and 140 on which the information superimposition data 184 is superimposed. Generate.

  FIGS. 17 and 18 are explanatory diagrams for explaining the operation of the line sequential unit 314. In particular, FIG. 17 is a side-by-side stereoscopic video data 134, and FIG. 18 is a top-and-bottom stereoscopic video data 140. Display data 142 is generated. As illustrated in FIG. 17A, when the video acquisition unit 150 acquires the side-by-side stereoscopic video data 134, the line sequential unit 314 includes the odd-line video L1, L3, L5, L7, Images L9, L11 and even-line images R2, R4, R6, R8, R10, R12 of the right-eye image 132 are extracted, and rearranged alternately with the left ends of the lines aligned.

  Specifically, the first-line image L1 of the left-eye image 130 in FIG. 17A is changed to the first-line image L1 ′ of the stereoscopic display data 142 in FIG. 17B, and the right-eye image in FIG. The video R2 of the second line of the video 132 is converted into the video R2 ′ of the second line of the stereoscopic display data 142 in FIG. Therefore, the even-line images L2, L4, L6, L8, L10, and L12 of the left-eye image 130 and the odd-line images R1, R3, R5, R7, R9, and R11 of the right-eye image 132 are not used. . Here, odd lines are extracted from the left eye image 130 and even lines are extracted from the right eye image 132, but of course, even lines may be extracted from the left eye image 130 and odd lines may be extracted from the right eye image 132.

  However, since the horizontal resolution of each eye image of the stereoscopic video data 134 is ½ of the stereoscopic display data 142, when generating the stereoscopic display data 142 from the stereoscopic video data 134, the horizontal resolution is doubled. It must be enlarged. Generation of a new pixel accompanying such horizontal resolution enlargement can use linear interpolation or other filtering. The magnification of the horizontal resolution is appropriately adjusted according to the ratio of the number of pixels in the horizontal direction between each eye image of the stereoscopic image data 134 and the stereoscopic display data 142.

  Also, as shown in FIG. 18A, when the video acquisition unit 150 acquires the top-and-bottom stereoscopic video data 140, the line sequential unit 314 displays the video L1, L2, and the video L1, L2, all lines of the left-eye video 136. L3, L4, L5, L6 and the images R1, R2, R3, R4, R5, R6 of all lines of the right eye image 138 are alternately rearranged with the left ends of the lines aligned. Accordingly, the video L1 of the first line of the left eye video 136 in FIG. 18A is changed to the video L1 of the first line of the stereoscopic display data 142 in FIG. 18B, and the right eye video 138 in FIG. The image R1 of the first line is transferred to the image R1 of the second line of the stereoscopic display data 142 in FIG. 18B without executing enlargement processing or reduction processing. As described above, since there is no line that is not used in the top-and-bottom system and there is no enlargement of the horizontal resolution, information loss is reduced.

  The video output unit 164 outputs the stereoscopic display data 142 subjected to the line sequential processing by the line sequential unit 314 to the display 110 or other externally connected device.

  In the stereoscopic video display device 300 described above, a horizontal parallax vector between the left eye video and the right eye video of the stereoscopic video data is obtained, information superimposition data and a control signal are generated based on the horizontal parallax vector, and the stereoscopic video data After superimposing information superimposition data on each of the left eye video and right eye video, line sequential processing is performed for each stereoscopic video data. With this configuration, binocular parallax can be imparted to information video data that does not take stereoscopic vision into consideration, and the viewer can perceive the information video data stereoscopically. As described above, the information video data is correctly imaged as in the case of the stereoscopic video data, thereby reducing the burden on the eyes and realizing a more natural stereoscopic video display.

(3D image display method)
Next, a stereoscopic video display method for displaying stereoscopic video based on binocular parallax using the stereoscopic video display device 300 described above will be specifically described.

  FIG. 19 is a flowchart showing the overall flow of the stereoscopic video display method. When the video acquisition unit 150 of the stereoscopic video display device 300 acquires the stereoscopic video data 134 and 140 (S400), the video processing unit 152 performs video signal processing such as RGB processing (γ correction and color correction), enhancement processing, noise reduction processing, and the like. (S402).

  Following or in parallel with the processing described above, the information video data storage unit 310 generates information video data 180 indicating information related to operation display of the stereoscopic video data 134, 140 or the stereoscopic display data 142 (S404). The horizontal parallax vector deriving unit 158 derives a horizontal parallax vector between the left eye video and the right eye video (S406), and the information video data storage unit 310 calculates the information video data 180 based on the derived horizontal parallax vector. The information superimposition data 184 corresponding to the left eye video and the right eye video and the control signal 182 are generated (S408), and the video superimposing unit 162 converts the information superimposition data 184 into the stereoscopic video data 134 according to the generated control signal 182. , 140 (S410).

  The line sequential unit 154 alternately displays the horizontal display data 142 for displaying on the display 110 by juxtaposing the horizontal lines of the left eye video and the right eye video of the stereoscopic video data 134 and 140 on which the information superimposition data 184 is superimposed. The video output unit 164 outputs the stereoscopic display data 142 (S414). Such a series of processing is repeated until the three-dimensional video data 134 and 140 disappear, and the observer can view the three-dimensional video in which the information video data 180 is displayed at an appropriate imaging position.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to this embodiment. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Understood.

  Note that each step of the stereoscopic image display method of the present specification does not necessarily have to be processed in time series in the order described in the flowchart, and may include processing in parallel or by a subroutine.

  INDUSTRIAL APPLICABILITY The present invention can be used for a stereoscopic video display device and a stereoscopic video display method capable of displaying stereoscopic video based on binocular parallax on a display.

100, 300 ... 3D image display device 110 ... Display 130, 136 ... Left eye image 132, 138 ... Right eye image 134, 140 ... 3D image data 146 ... Block 150 ... Image acquisition unit 152 ... Image processing unit 154, 314 ... Line Sequential sections 156, 310 ... information video data storage section 158 ... horizontal parallax vector derivation section 160 ... information video adjustment sections 162, 312 ... video superposition section 164 ... video output section 180 ... information video data 182 ... control signal 184 ... information superposition data

Claims (4)

A video acquisition unit that includes a left-eye image and a right-eye image generated so as to generate parallax with each other, and acquires stereoscopic video data generated in a side-by-side manner ;
A line sequential unit that alternately generates horizontal lines of left-eye video and right-eye video in the acquired stereoscopic video data and generates stereoscopic display data for display on a display;
The left eye image and the right eye image of the acquired stereoscopic image data are divided into blocks of a predetermined size, the corresponding blocks are relatively shifted in the horizontal direction, and the evaluation values of the corresponding blocks are compared. The horizontal shift amount that minimizes the difference between the horizontal blocks is derived, the derived horizontal shift amount is taken as the horizontal shift amount of each of the divided blocks, and the calculated horizontal shift amount of each block is calculated. A horizontal shift amount deriving unit for deriving any one of the average value, the minimum value, and the maximum value as a horizontal shift amount of the stereoscopic video data ;
For information video data to be superimposed on each of the left eye video and the right eye video, the position of the information video data superimposed on the left eye video is the position of the information video data superimposed on the right eye video. An information video adjusting unit that generates a control signal so as to be shifted in a horizontal direction with a shift amount that is twice a horizontal shift amount of the derived stereoscopic video data with respect to a position ;
A video superimposing unit that superimposes the information video data on the stereoscopic display data according to the control signal;
A video output unit that outputs stereoscopic display data on which the information video data is superimposed;
A stereoscopic video display device comprising: A video acquisition unit that includes a left-eye image and a right-eye image generated so as to generate parallax with each other, and acquires stereoscopic video data generated in a side-by-side manner ;
The left eye image and the right eye image of the acquired stereoscopic image data are divided into blocks of a predetermined size, the corresponding blocks are relatively shifted in the horizontal direction, and the evaluation values of the corresponding blocks are compared. The horizontal shift amount that minimizes the difference between the horizontal blocks is derived, the derived horizontal shift amount is taken as the horizontal shift amount of each of the divided blocks, and the calculated horizontal shift amount of each block is calculated. A horizontal shift amount deriving unit for deriving any one of the average value, the minimum value, and the maximum value as a horizontal shift amount of the stereoscopic video data ;
Based on the horizontal shift amount of the stereoscopic image data to which the derived, said from the stereoscopic image data or information image data indicating information on the operation display of the stereoscopic display data to be displayed on the display left-eye image and the right-eye image Information superimposition data corresponding to the left eye image and the right eye image is generated at a position having the same horizontal shift amount as the horizontal shift amount of the stereoscopic video data. an information image data storage unit for generating control signals for superimposing,
A video superimposing unit that superimposes the information superimposing data on the stereoscopic video data according to the control signal;
Stereo display data for extracting predetermined horizontal lines from the left-eye video and right-eye video of the stereoscopic video data on which the information superimposition data is superimposed, and arranging the extracted horizontal lines alternately and displaying them on the display A line sequential part that generates
A video output unit for outputting the superimposed stereoscopic display data;
With
The stereoscopic video display device , wherein the video superimposing unit does not superimpose the information superimposition data on a horizontal line of the left eye video and the right eye video that are not extracted in the line sequential unit . Acquiring left-eye video and right-eye video generated so as to generate parallax, and obtaining stereoscopic video data generated in a side-by-side manner;
Alternately generating horizontal lines of left eye video and right eye video in the acquired stereoscopic video data, and generating stereoscopic display data for display on a display;
The left eye image and the right eye image of the acquired stereoscopic image data are divided into blocks of a predetermined size, the corresponding blocks are relatively shifted in the horizontal direction, and the evaluation values of the corresponding blocks are compared. The horizontal shift amount that minimizes the difference between the horizontal blocks is derived, the derived horizontal shift amount is taken as the horizontal shift amount of each of the divided blocks, and the calculated horizontal shift amount of each block is calculated. Deriving any one of an average value, a minimum value, and a maximum value as a horizontal shift amount of the stereoscopic video data;
For information video data to be superimposed on each of the left eye video and the right eye video, the position of the information video data superimposed on the left eye video is the position of the information video data superimposed on the right eye video. Generating a control signal so as to be shifted in a horizontal direction with a shift amount twice as large as a horizontal shift amount of the derived stereoscopic video data with respect to a position;
Superimposing the information video data on the stereoscopic display data according to the control signal;
Outputting stereoscopic display data on which the information video data is superimposed;
A stereoscopic image display method comprising: Obtaining the generated stereoscopic video data generated by the side-by-side method, comprising a left-eye video and a right-eye video generated so as to generate parallax with each other;
The left eye image and the right eye image of the acquired stereoscopic image data are divided into blocks of a predetermined size, the corresponding blocks are relatively shifted in the horizontal direction, and the evaluation values of the corresponding blocks are compared. The horizontal shift amount that minimizes the difference between the horizontal blocks is derived, the derived horizontal shift amount is taken as the horizontal shift amount of each of the divided blocks, and the calculated horizontal shift amount of each block is calculated. Deriving any one of an average value, a minimum value, and a maximum value as a horizontal shift amount of the stereoscopic video data;
Based on the derived horizontal shift amount of the stereoscopic video data, the left-eye video and the right-eye video are obtained from the stereoscopic video data or information video data indicating information related to operation display of the stereoscopic display data displayed on the display. Information superimposition data corresponding to the left eye image and the right eye image is generated at a position having the same horizontal shift amount as the horizontal shift amount of the stereoscopic video data. Generating a control signal for superimposition;
Superimposing the information superimposition data on the stereoscopic video data according to the control signal;
Stereo display data for extracting predetermined horizontal lines from the left-eye video and right-eye video of the stereoscopic video data on which the information superimposition data is superimposed, and arranging the extracted horizontal lines alternately and displaying them on the display A step of generating
Outputting the superimposed stereoscopic display data;
With
The step of superimposing the information superimposition data on the stereoscopic video data does not superimpose the information superimposition data on horizontal lines of the left eye video and the right eye video that are not extracted in the step of generating the stereoscopic display data. 3D video display method .

Images