JP5656676B2 - Video display device, video display method and program - Google Patents

Description

  The present invention particularly relates to a video display device, a video display method, and a program suitable for use in displaying a stereoscopic video.

  Conventionally, guidelines for viewing stereoscopic (3D) video using binocular parallax have been formulated (see, for example, Non-Patent Document 1). Non-Patent Document 1 stipulates guidelines for reducing eye strain and discomfort of viewers because fatigue tends to accumulate when viewing stereoscopic images. In this way, it is possible to view stereoscopic images using binocular parallax with right and left eyes, but when viewing in binocular viewing in real space, focus on the object with the dominant eye and vaguely with the non-dominant eye The research result that it captures is reported (for example, refer nonpatent literature 2).

  On the other hand, in the binocular stereoscopic vision, if the image quality of one image is good to some extent, the overall image quality is not greatly affected even if the other image quality is somewhat bad. In view of this, a recording / reproducing apparatus that reduces the data amount by increasing the compression rate of one video signal has been proposed (see, for example, Patent Document 1).

JP-A-5-1111057

3D Consortium Safety Guidelines Subcommittee “3DC Safety Guidelines”, revised on April 20, 2010 Takashi Fujimon “Responding to Presbyopia”, Journal of the Japan Vision Training Association, Vol. 31, 2002, pp. 75-81

  In Non-Patent Document 1, as measures for reducing eyestrain and discomfort, measures for ensuring stereoscopic vision, such as viewing posture, viewing position, and parallax range, are defined as guidelines. However, since the difference in how to capture the image when viewing with both eyes in the actual space as described in Non-Patent Document 2 described above is not taken into consideration, eye strain and discomfort can be sufficiently reduced. Can not. Patent Document 1 discloses a technique for increasing the compression ratio of one video signal, but it is not a technique for reducing eye strain or discomfort during reproduction. Pleasure cannot be reduced.

  An object of the present invention is to make it possible to sufficiently reduce eye strain and discomfort when a stereoscopic image is viewed in view of the above-described problems.

Image display device of the present invention includes means for obtaining the dominant eye information Yu chromatography The, display control means for displaying on the display unit alternately left-eye video and the right-eye image, light incident to the left eye of the user A left-eye shutter used for blocking, a right-eye shutter used for blocking light incident on a user's right eye, a left-eye soft focus lens used for blurring the left-eye image, and the right eye Processing means for notifying shutter-type glasses having a right-eye soft focus lens used for blurring an image for use when the display control means is displaying the left-eye image. When the right-eye shutter is driven so that light incident on the right eye is blocked and the display control means displays the right-eye video, the user's left eye Which of the left-eye video and the right-eye video is displayed by the display control means for the shutter-type glasses so that the left-eye shutter is driven so that the emitted light is blocked. The dominant-eye information so that the image opposite to the user's dominant eye of the left-eye video and the right-eye video is blurred by the left-eye soft focus lens or the right-eye soft focus lens. the wherein further comprising a processing means for notifying to the shutter eyeglasses.

  According to the present invention, it is possible to approximate binocular vision in an actual space, and eye strain and discomfort can be sufficiently reduced.

It is a block diagram which shows the function structural example of the video display apparatus which concerns on 1st Embodiment. It is a figure for demonstrating the outline | summary of a stereoscopic vision image. It is a flowchart which shows an example of the process sequence which displays a stereoscopic vision image. It is a figure which shows an example of the stereoscopic vision image by 1st Embodiment. It is a block diagram which shows the function structural example of the video display apparatus which concerns on 2nd Embodiment. It is a flowchart which shows an example of the process sequence which views a stereoscopic vision image. It is a block diagram which shows the function structural example of the video display apparatus which concerns on 3rd Embodiment. It is a figure which shows the area | region used as a gaze area | region with respect to the image | video for left eyes, and the image | video for right eyes. It is a figure which shows the list of the extraction result of a non-gaze image element. It is a flowchart which shows an example of the process sequence which displays a stereoscopic vision image. It is a figure which shows an example of the stereoscopic vision image by 3rd Embodiment. It is a flowchart which shows an example of the process sequence which displays a stereoscopic vision image. It is a figure which shows the list of the calculation result of the position of a video element on either side. It is a figure which shows an example of the table for determining a filter coefficient. It is a figure which shows an example of the stereoscopic vision image by 4th Embodiment.

(First embodiment)
The configuration of the video display apparatus according to the first embodiment of the present invention will be described below with reference to the block diagram of FIG.
FIG. 1 is a block diagram illustrating a functional configuration example of the video display device 100 according to the present embodiment.
In FIG. 1, a video input unit 101 inputs video data via a storage medium such as a memory card or a hard disk, or an interface such as a USB or a network. At this time, a left-eye video and a right-eye video are input as video data. The dominant eye information setting unit 102 is for setting whether the dominant eye of the user who is the video observer is the right eye or the left eye. The user inputs the dominant eye information or uses a known technique. Set by determining the user's dominant eye.

  The non-dominant eye video selection unit 103 selects a non-effective eye image from the video data input from the video input unit 101 based on the dominant eye information set by the dominant eye information setting unit 102. That is, when the right eye is set as the dominant eye by the dominant eye information setting unit 102, the left eye image is selected as the non-dominant eye image, and when the left eye is set as the dominant eye by the dominant eye information setting unit 102, the non-dominant eye is selected. Select the right-eye image as the image.

  The video processing unit 104 performs blur processing, which is processing, on the video data selected by the non-dominant video selection unit 103. As the blur processing, one or any combination of a plurality of high frequency component reduction processing, contrast reduction processing, saturation reduction processing, and lightness reduction processing is performed. For example, a spatial low-pass filter is used for the high-frequency component reduction processing. The video output unit 105 uses the non-dominant eye image that has been subjected to the blurring process by the image processing unit 104 and the dominant eye image directly output from the non-dominant eye image selection unit 103 to display a stereoscopic image on a display screen. Perform display control.

  FIG. 2 is a diagram for explaining an overview of a stereoscopic video image related to video data input from the video input unit 101 in order to obtain a stereoscopic video image. Here, FIG. 2A and FIG. 2B are schematic diagrams for explaining how the stereoscopic image 201 is imaged by right and left parallax, and FIG. 2A shows a view seen from the front. FIG. 2 (b) shows a conceptual view seen from above. As shown in FIG. 2B, the video element 202 is imaged deeply with respect to the display surface, the video element 203 is imaged at the same depth as the display surface, and the video elements 204 and 205 are imaged with respect to the display surface. It shows that the image is formed in front.

  FIG. 2C shows a left-eye video 201L and a right-eye video 201R for forming the stereoscopic video 201. By observing the left-eye video 201L with the left eye and the right-eye video 201R with the right eye, the stereoscopic video 201 shown in FIG. 2A is perceived by the user as a stereoscopic video.

  The video element 202 includes a left-eye video element 202L and a right-eye video element 202R. At this time, the left-eye video element 202L is arranged at a position of 200 dots from the left end of the left-eye video 201L, and the right-eye video element 202R is arranged at a position of 250 dots from the left end of the right-eye video 201R. In this way, when the left-eye video element 202L is present at the left position compared to the right-eye video element 202R, the video element 202 when viewed stereoscopically by left and right parallax is imaged deeper than the display surface.

  The video element 203 includes a left-eye video element 203L and a right-eye video element 203R. Both the left-eye video element 203L and the right-eye video element 203R are arranged at a position of 825 dots from the left end. As described above, when there is no difference in the left and right positions between the left-eye video element 203L and the right-eye video element 203R, the video element 202 when viewed stereoscopically is imaged at the same depth as the display surface.

  On the other hand, the video element 204 includes a left-eye video element 204L and a right-eye video element 204R. The left-eye video element 204L is arranged at a position of 245 dots from the left end of the left-eye video 201L, and the right-eye video element 204R is arranged at a position of 155 dots from the left end of the right-eye video 201R. In this way, when the left-eye video element 204L is present at the right position compared to the right-eye video element 204R, the video element 204 when viewed stereoscopically by left and right parallax is imaged in front of the display surface. The same applies to the video element 205.

  Next, the operation of the video display apparatus 100 in the present embodiment will be described with reference to the flowchart of FIG. FIG. 3 is a flowchart illustrating an example of a processing procedure for displaying a stereoscopic video image in the present embodiment. Further, when performing the process shown in FIG. 3, it is assumed that dominant eye information is set in advance in the dominant eye information setting unit 102.

  First, video data relating to a stereoscopic video is input by the video input unit 101 (step S301). Next, the non-dominant eye image selection unit 103 reads out the dominant eye information set in the dominant eye information setting unit 102 (step S302). Then, it is determined from the dominant eye information read in step S302 whether or not the dominant eye is the right eye (step S303). If the result of this determination is that the dominant eye is the right eye, the video processing unit 104 performs blur processing on the video data related to the left-eye video (step S304). On the other hand, when the dominant eye is the left eye, the video processing unit 104 performs blurring processing on the video data related to the right-eye video (step S305). Then, the video output unit 105 displays a stereoscopic video image using the dominant-eye video data that has not been subjected to the blurring process and the non-dominant-eye video data that has been subjected to the blurring process in step S304 or step S305. (Step S306).

  FIG. 4 is a diagram illustrating an example of a stereoscopic video output from the video output unit 105. FIG. 4A illustrates an example of the left-eye video 401L and the right-eye video 201R obtained by performing blurring processing on the left-eye video 201L illustrated in FIG. FIG. 4B shows a right-eye video 401R and a left-eye video 201L obtained by subjecting the right-eye video 201R shown in FIG.

  In FIG. 4A, the left-eye video elements 402L, 403L, 404L, and 405L indicated by dotted lines indicate that the video elements have been subjected to blur processing. In FIG. 4B, the right-eye video elements 402R, 403R, 404R, and 405R indicated by dotted lines indicate that the video elements have been subjected to blur processing. As a result of the determination in step S303 in FIG. 3, when the right eye is dominant, the image shown in FIG. 4A is displayed. When the left eye is dominant, the image shown in FIG. 4B is displayed. .

  As described above, when the right eye is dominant, the left-eye image is blurred, and when the left eye is dominant, the right-eye image is blurred. It becomes possible to capture. As a result, stereoscopic images can be viewed in a state close to binocular vision in an actual space, and eye strain and discomfort can be reduced.

(Second Embodiment)
In the first embodiment described above, the case where the blur processing is performed in the apparatus and the stereoscopic video is displayed has been described. In the present embodiment, a case will be described in which blur processing is performed on the 3D glasses side when stereoscopic viewing is performed using 3D glasses dedicated to stereoscopic viewing, such as liquid crystal shutter glasses.

FIG. 5 is a block diagram illustrating a functional configuration example of the video display apparatus 500 according to the present embodiment.
In FIG. 5, the video display device 500 includes a video player 501 and 3D glasses 506. The video player 501 includes a video display unit 502, an LR signal transmission unit 503, a dominant eye information setting unit 504, and a dominant eye information transmission unit 505.

  The video display unit 502 alternately reproduces and displays the left-eye video and the right-eye video on a video display screen formed of a liquid crystal panel, a plasma panel, or the like. The LR signal transmission unit 503 transmits the L signal to the 3D glasses 506 when the image displayed on the image display unit 502 is the left-eye image, and transmits the R signal when the image is the right-eye image. The dominant eye information setting unit 504 sets whether the user's dominant eye is the right eye or the left eye. The setting method of dominant eye information is the same as in the first embodiment. The dominant eye information transmission unit 505 transmits the dominant eye information set in the dominant eye information setting unit 504 to the 3D glasses 506.

  The 3D glasses 506 include configurations of a left eye lens block 507 to a dominant eye information receiving unit 516, which will be described later. The left-eye lens block 507 controls an image incident on the user's left eye. The left-eye liquid crystal shutter 508 is a shutter for turning on / off an image incident on the user's left eye, and the on / off of the left-eye liquid crystal shutter 508 is controlled by the liquid crystal shutter driving unit 513. The left-eye soft focus lens 509 is a lens for performing blur processing on an image incident on the left eye of the user, and is controlled by the lens driving unit 515.

  The right-eye lens block 510 controls an image incident on the user's right eye. The right-eye liquid crystal shutter 511 is a shutter for turning on / off an image incident on the right eye of the user, and the on / off of the right-eye liquid crystal shutter 511 is controlled by the liquid crystal shutter driving unit 513. The right-eye soft focus lens 512 is a lens for performing blur processing on an image incident on the right eye of the user, and is controlled by the lens driving unit 515.

  When the signal received by the LR signal receiving unit 514 is an L signal, the liquid crystal shutter driving unit 513 controls the left-eye liquid crystal shutter 508 to be turned off and transmits the video, and the right-eye liquid crystal shutter 511 is turned on to perform the video. Control to shut off. On the other hand, when the signal received by the LR signal receiving unit 514 is an R signal, the left eye liquid crystal shutter 508 is turned on to control to block the image, and the right eye liquid crystal shutter 511 is turned off to control to transmit the image. To do. The LR signal receiving unit 514 is a receiving unit for receiving the L signal or the R signal transmitted by the LR signal transmitting unit 503.

  When the dominant eye information received by the dominant eye information receiving unit 516 is the right eye, the lens driving unit 515 controls to turn off the right eye soft focus lens 512 and transmit the image as it is. Then, the soft focus lens 509 for the left eye is turned on, and the image is blurred by the soft focus effect. On the other hand, when the dominant eye information received by the dominant eye information receiving unit 516 is the left eye, the left eye soft focus lens 509 is turned off and control is performed to transmit the image as it is. Then, the right-eye soft focus lens 512 is turned on, and the image is blurred by the soft focus effect. The dominant eye information receiving unit 516 receives the dominant eye information transmitted by the dominant eye information transmitting unit 505.

  Next, the operation of the video display apparatus 500 in this embodiment will be described with reference to the flowchart of FIG. FIG. 6 is a flowchart illustrating an example of a processing procedure for displaying a stereoscopic video image in the present embodiment. Here, FIG. 6A shows the operation of the video player 501, and FIG. 6B shows the operation of the 3D glasses 506. Further, when performing the process shown in FIG. 6, it is assumed that dominant eye information is set in advance in the dominant eye information setting unit 504.

  First, as the operation of the video player 501, the dominant eye information transmission unit 505 reads the dominant eye information set by the dominant eye information setting unit 504 (step S <b> 601), and transmits the read dominant eye information to the 3D glasses 506. (Step S602). Next, the video display unit 502 alternately reproduces and displays the left-eye video and the right-eye video (step S603). Then, it is determined whether or not the currently displayed video is a left-eye video (step S604). If the result of this determination is that the video is for the left eye, the LR signal transmission unit 503 transmits the L signal to the 3D glasses 506 (step S605), and the process ends. On the other hand, when the video is for the right eye, the LR signal transmission unit 503 transmits the R signal to the 3D glasses 506 (step S606), and ends the process.

  On the other hand, as the operation of the 3D glasses 506, first, the dominant eye information reception unit 516 receives the dominant eye information transmitted in step S602 (step S611). Then, it is determined whether or not the dominant eye is the right eye based on the received dominant eye information (step S612). If the result of this determination is that the dominant eye is the right eye, the lens driver 515 turns off the right eye soft focus lens 512 (step S613) and turns on the left eye soft focus lens 509 (step S614). On the other hand, if the dominant eye is the left eye, the lens driver 515 turns off the left-eye soft focus lens 509 (step S615) and turns on the right-eye soft focus lens 512 (step S616).

  Next, the LR signal receiving unit 514 receives the signal (L signal or R signal) transmitted in step S605 or S606 (step S617). Then, it is determined whether or not the received signal is an L signal (step S618). If the result of this determination is the L signal, in step S619, the liquid crystal shutter drive unit 513 turns off the left-eye liquid crystal shutter 508 (step S619), and turns on the right-eye liquid crystal shutter 511 (step S620). On the other hand, in the case of the R signal, the liquid crystal shutter drive unit 513 turns off the right eye liquid crystal shutter 511 (step S621) and turns on the left eye liquid crystal shutter 508 (step S622).

  As described above, when the right eye is dominant, the left eye of the 3D glasses is subjected to blur processing by the soft focus lens, and when the left eye is dominant, the right eye of the 3D glasses is subjected to the blur processing by the soft focus lens. . This makes it possible to grasp the video vaguely for non-dominant eyes. As a result, stereoscopic images can be viewed in a state close to binocular vision in an actual space, and eye strain and discomfort can be reduced.

(Third embodiment)
In the first and second embodiments described above, an example in which blur processing is performed on the entire image for non-dominant eyes has been described, but in this embodiment, blur processing is performed on a portion of the image for non-dominant eyes. An example of applying is described.

FIG. 7 is a block diagram illustrating a functional configuration example of the video display apparatus 700 according to the present embodiment. In addition, about the structure same as FIG. 1 demonstrated in 1st Embodiment, the code | symbol same as FIG. 1 is attached | subjected and description is abbreviate | omitted.
In FIG. 7, the gaze area specifying unit 701 specifies the area that the user is watching or the video element that is watching. The user's gaze area can be identified by using a known technique such as the user's gaze detection technique. For example, the area that is likely to be gazed at the user is identified as, for example, the vicinity of the center of the video. It is also possible to do. In the present embodiment, a case where the vicinity of the center of the video is set as the gaze area will be described.

  FIG. 8 is a diagram illustrating an area as a gaze area for the left-eye video 201L and the right-eye video 201R in the present embodiment. In the example shown in FIG. 8, the gaze area 801L is set in the left-eye video 201L, and the gaze area 801R is set in the right-eye video 201R.

  The non-gaze video element extraction unit 702 generates position information of all video elements and extracts video elements that do not exist in the gaze area. In the example of FIG. 8, the video elements 202 and 203 that do not exist in the gaze areas 801L and 801R are extracted as non-gaze video elements.

  FIG. 9 is a diagram illustrating a list of extraction results obtained by the non-gaze video element extraction unit 702. As shown in FIG. 9, for each video element, a non-gaze video element is represented as a gaze flag = 0, and a gaze video element is represented as a gaze flag = 1.

  The video processing condition setting unit 703 determines the blur processing to be applied to the non-gaze video element. As blur processing, processing types of high frequency component reduction processing, contrast reduction processing, saturation reduction processing, and lightness reduction processing are determined. In the case of high-frequency component reduction processing, the processing content such as the coefficient of the spatial low-pass filter is further determined. The video processing processing unit 704 performs blur processing on the video data selected by the non-dominant video selection unit 103 based on the processing conditions set by the video processing processing condition setting unit 703.

  Next, the operation of the video display apparatus 700 in the present embodiment will be described with reference to the flowchart of FIG. FIG. 10 is a flowchart illustrating an example of a processing procedure for displaying a stereoscopic video in the present embodiment. When performing the processing shown in FIG. 10, it is assumed that dominant eye information is set in advance in the dominant eye information setting unit 102. The same processing steps as those in FIG. 3 are denoted by the same reference numerals as those in FIG.

  When video data is input in step S301, the gaze area specifying unit 701 sets a gaze area for the input video data (step S1001). In the present embodiment, for example, gaze areas 801L and 801R as shown in FIG. 8 are set. Next, the non-gaze video element extraction unit 702 generates position information of each video element, and extracts a non-gaze video element from the input video data (step S1002). As an extraction procedure, for example, it is determined based on the extraction result shown in FIG. 9 whether or not each of the video elements 202 to 205 shown in FIG. 2 exists in the gaze areas 801L and 801R. As a result of the determination, the video elements 202 and 203 having no video elements in the gaze areas 801L and 801R are extracted as non-gaze video elements.

  If the result of determination in step S303 is that the dominant eye is the right eye, the video processing unit 704 performs blur processing on the non-gaze video element of the left-eye video. In the example illustrated in FIG. 8, blur processing is performed on the video elements 202 </ b> L and 203 </ b> L that are non-gaze video elements of the left-eye video. On the other hand, if the result of determination in step S303 is that the dominant eye is the left eye, blur processing is performed on the non-gaze image element of the right eye image. In the example shown in FIG. 8, blur processing is performed on the video elements 202R and 203R that are non-gaze video elements of the right-eye video.

  FIG. 11 is a diagram illustrating an example of a stereoscopic video output from the video output unit 105. FIG. 11A shows a left-eye video 1101L and a right-eye video 201R obtained by subjecting the left-eye video 201L shown in FIG. On the other hand, FIG. 11B shows a right-eye video 1101R and a left-eye video 201L obtained by performing blur processing on the right-eye video 201R. FIG. 11A shows that the left-eye video elements 1102L and 1103L indicated by dotted lines have been subjected to blur processing. Further, in FIG. 11B, it is shown that the right-eye video elements 1102R and 1103R indicated by dotted lines have been subjected to blur processing. As a result of the determination in step S303 in FIG. 3, when the right eye is dominant, the image shown in FIG. 11A is displayed, and when the left eye is dominant, the image shown in FIG. 11B is displayed.

  As described above, by performing blur processing on image elements outside the gaze area of the non-dominant eye image, it is possible to vaguely grasp the image outside the gaze area with the non-dominant eye. As a result, stereoscopic images can be viewed in a state closer to binocular vision in an actual space, and eye strain and discomfort can be reduced.

(Fourth embodiment)
In the third embodiment described above, an example in which uniform blur processing is performed on a non-gaze video element has been described. In the present embodiment, an example in which different blur processing is performed according to the parallax of a video element will be described. Note that the functional configuration of the video display apparatus according to the present embodiment is the same as that shown in FIG.

  Hereinafter, the operation of the video display device 700 in the present embodiment will be described with reference to FIGS. FIG. 12 is a flowchart illustrating an example of a processing procedure for displaying a stereoscopic video image in the present embodiment. When performing the process shown in FIG. 12, it is assumed that dominant eye information is set in advance in the dominant eye information setting unit 102. The same processing steps as those in FIG. 3 are denoted by the same reference numerals as those in FIG.

  When video data is input in step S301, the non-gaze video element extraction unit 702 sequentially calculates the positions of the video elements (step S1201). FIG. 13 is a diagram showing a list of calculation results of the positions of the video elements in the left-eye video 201L and the right-eye video 201R shown in FIG. For example, the center coordinate of the video element 202L is located at a position of 200 dots from the left end of the screen as the horizontal position, and is located at a position of 125 dots from the upper end of the screen as the vertical position. The same applies to other video elements.

  Next, the non-gaze video element extraction unit 702 calculates the parallax of each video element (step S1202). For example, in the case of the video element 202, since the horizontal positions of the left-eye video element 202L and the right-eye video element 202R are 200 dots and 250 dots, respectively, the horizontal parallax is calculated as minus 50 dots from the calculation result of 200-250. . The same applies to other video elements.

  Next, the non-gaze video element extraction unit 702 selects a video element close to the center of the screen as the gaze video element (step S1203). In the third embodiment, the non-gaze video element extraction unit 702 extracts the non-gaze video element. However, in this embodiment, the gaze area identification unit 701 identifies the gaze video element, and the non-gaze video element It is assumed that the extraction unit 702 extracts a gaze image element. The example shown in FIG. 13 shows an example in which the horizontal width of the video is 1000 dots and the vertical width is 650 dots. At this time, the center coordinates of the video are 500 dots at the horizontal position and 325 dots at the vertical position. Since the video element 205 is closest to the center of the screen among the video elements 202 to 205, the video element 205 is selected as the watched video element.

  Next, the video processing processing condition setting unit 703 calculates the difference from the parallax of the other video elements based on the parallax of the video element 205 that is the gaze video element, and determines the blur processing condition based on the parallax difference. (Step S1204). As the blur processing, one or a plurality of combination processings of high frequency component reduction processing, contrast reduction processing, saturation reduction processing, and lightness reduction processing are performed. In the present embodiment, a different blur effect is obtained as a video processing condition depending on the difference from the parallax of the watched video element. Hereinafter, a method for determining the filter coefficient of the spatial low-pass filter will be described.

  FIG. 14 is a diagram illustrating an example of a table for determining filter coefficients. As shown in FIG. 14, a filter coefficient is given that increases the blur effect as the absolute value of the difference in horizontal parallax increases. When the absolute value of the difference in horizontal parallax is less than 50, there is not much blurring effect, so the spatial low-pass filter is not applied. When the absolute value of the difference in horizontal parallax is 50 or more and less than 100, filter coefficients 1/8, 6/8, and 1/8 that reduce the blur effect are applied. As described above, when the absolute value of the difference in horizontal parallax is 100 or more and less than 150, a filter coefficient with a medium blur effect is applied, and when the absolute value is 150 or more, a filter coefficient with a large blur effect is applied.

  In the case of the video element 202 shown in FIG. 2, the parallax is minus 50, and the parallax of the video element 205 that is the gaze video element is plus 100. Accordingly, since the absolute value of the horizontal parallax difference is 150, the filter coefficients applied to the video element 202 are determined to be 1/4, 2/4, and 1/4. Similarly, since the absolute value of the parallax difference between the video element 203 and the video element 205 that is the gaze video element is 100, the filter coefficients are determined to be 1/6, 4/6, and 1/6. Then, since the absolute value of the parallax difference between the video element 204 and the video element 205 which is the gaze video element is 10, it is determined that no filtering is performed.

  If the result of determination in step S303 is that the dominant eye is the right eye, the video processing unit 704 performs blurring processing on the video element of the left-eye video based on the filter coefficient determined in step S1204. In the example shown in FIG. 2 (c), the left eye video element 202L is filtered with the filter coefficients 1/4, 2/4, and 1/4, and the left eye video element 203L is filtered. Filter processing is performed at 1/6, 4/6, and 1/6. Then, filter processing is not performed on the left-eye video elements 204L and 205L.

  If the result of determination in step S303 is that the dominant eye is the left eye, the video processing unit 704 performs blur processing on the video element of the right-eye video based on the filter coefficient determined in step S1204. In the example shown in FIG. 2C, the right-eye video element 202R is filtered with the filter coefficients 1/4, 2/4, and 1/4, and the right-eye video element 203R is filtered. Filter processing is performed at 1/6, 4/6, and 1/6. Then, the filtering process is not performed on the right-eye video elements 204R and 205R.

  FIG. 15 is a diagram illustrating an example of a stereoscopic video output from the video output unit 105. In FIG. 15A, for the left-eye video 201L shown in FIG. 2C, a moderate blur process is applied to the left-eye video element 203L, and a large blur process is applied to the left-eye video element 202L. An image 1501L and a right-eye image 201R are represented. On the other hand, in FIG. 15B, a moderate blur process is applied to the right-eye video element 203R and a large blur process is applied to the right-eye video element 202R with respect to the right-eye video 201R shown in FIG. A right-eye image 1501R and a left-eye image 201L are shown. FIG. 15A shows that the left-eye video elements 1502L and 1503L indicated by dotted lines have been subjected to blur processing. FIG. 15B shows that the right-eye video elements 1502R and 1503R indicated by dotted lines have been subjected to blur processing. As a result of the determination in step S303 in FIG. 3, when the right eye is dominant, the image shown in FIG. 15A is displayed, and when the left eye is dominant, the image shown in FIG. 15B is displayed.

  As explained above, by applying different blur processing to the image elements outside the gaze area of the non-dominant eye image according to the difference from the parallax of the gaze image element, the image outside the gaze area is imaged by the non-dominant eye It becomes possible to grasp vaguely according to the depth of the. As a result, stereoscopic images can be viewed in a state closer to binocular vision in an actual space, and eye strain and discomfort can be reduced.

  In this embodiment, the three-stage three-tap spatial low-pass filter coefficient has been described as an example of the blur processing. However, the present invention is not limited to this, and a stage other than three stages is provided, or a different filter coefficient and a different number of taps are provided. Filter coefficients may be used. Furthermore, in the present embodiment, the spatial low-pass filter has been described as an example of the blur processing. However, the present invention is not limited to this, and by reducing the contrast, saturation, and lightness stepwise according to the difference in parallax, Processing may be performed.

(Other embodiments)
The present invention can also be realized by executing the following processing. That is, software (program) that realizes the functions of the above-described embodiments is supplied to a system or apparatus via a network or various storage media, and a computer (or CPU, MPU, or the like) of the system or apparatus reads the program. It is a process to be executed.

103 Non-dominant video selection unit 104 Video processing unit 105 Video output unit

Claims (3)

It means for obtaining the dominant eye information Yu over The,
Display control means for alternately displaying left-eye video and right-eye video on the display means;
A left-eye shutter used to block light incident on the user's left eye, a right-eye shutter used to block light incident on the user's right eye, and used to blur the left-eye image Processing means for notifying shutter-type glasses having a left-eye soft focus lens and a right-eye soft focus lens used to blur the right-eye image;
When the display control means is displaying the left-eye video, the right-eye shutter is driven so that light incident on the user's right eye is blocked, and the display control means displays the right-eye video. The display control means displays either the left-eye video or the right-eye video so that the left-eye shutter is driven so that light incident on the left eye of the user is blocked. Notifying the shutter-type glasses whether the
Among the left-eye video and the right-eye video, the dominant-eye information is converted into the shutter-type glasses so that an image opposite to the user's dominant eye is blurred by the left-eye soft focus lens or the right-eye soft focus lens. image display device comprising it and a processing unit to be notified to. A video display method Film image display apparatus performs,
An acquisition process for acquiring user's dominant eye information;
A display control step of alternately displaying left-eye video and right-eye video on the display means;
A left-eye shutter used to block light incident on the user's left eye, a right-eye shutter used to block light incident on the user's right eye, and used to blur the left-eye image A processing step of notifying shutter-type glasses having a left-eye soft focus lens and a right-eye soft focus lens used to blur the right-eye image,
When the display control step is displaying the left-eye video, light incident on the right eye of the user is blocked by the right-eye shutter, and when the display control step is displaying the right-eye video The shutter-type glasses indicate which of the left-eye video and the right-eye video is displayed by the display control step so that light incident on the user's left eye is blocked by the left-eye shutter. As well as
Among the left-eye video and the right-eye video, the dominant-eye information is converted into the shutter-type glasses so that an image opposite to the user's dominant eye is blurred by the left-eye soft focus lens or the right-eye soft focus lens. image display method, characterized by comprising a process to be notified to. A program for causing a computer to operate as the video display device according to claim 1 .

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