JP2014175813A - Stereoscopic video display method and device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stereoscopic video display method and a stereoscopic video display device that take eye health into consideration by suppressing eye fatigue in observing three-dimensional video.SOLUTION: Stereoscopic video display areas 12b, 13b and a planar video display area 11a surrounding the whole periphery of the stereoscopic video display areas are provided in video displayed on an image display surface 18 of a stereoscopic video display device, three-dimensional video is displayed in the stereoscopic video display areas, and two-dimensional video is displayed in the planar video display area, thereby suppressing a sense of incongruity in observing the three-dimensional video, so that eye fatigue is suppressed.

Description

  The present invention relates to a stereoscopic image display method and apparatus in consideration of eye hygiene.

  In recent years, 3D video technology has been rapidly developed, and 3D video can be used in various aspects. For example, even in exhibitions and academic lectures, there are an increasing number of scenes where 3D images with high reproducibility to the actual object are used. In particular, the use of stereoscopic images with a high sense of realism is expected in surgical review meetings. In addition, stereoscopic television broadcasting has been attempted.

At present, a stereoscopic movie is normally displayed on a movie theater screen by stereoscopic glasses using a two-parallax stereoscopic display method using a side-by-side video signal or an LR2 stream video signal.
Also, at trade shows and lectures, stereoscopic video display is performed by a two-parallax stereoscopic display method using a liquid crystal display device and a projection device when a large screen is required.
In addition, stereoscopic video broadcasting is also performed on some commercial broadcasts, CATV (cable television), IPTV (television broadcasting using the Internet protocol), etc., and many transmit side-by-side video signals that can be handled in the same way as conventional ones. Video is displayed on a 3D receiver and viewed using stereoscopic glasses.
In these three-dimensional video display methods, a three-dimensional video is usually displayed on the entire screen.

These two-parallax stereoscopic display systems use the principle that a stereoscopic effect can be obtained if images corresponding to the parallax of the right eye and the left eye are displayed on the respective eyes.
In this method, a person recognizes a stereoscopic image by synthesizing an LR image by focusing the right eye and the left eye on different left and right LR images presented on a display surface such as a display screen or a self-illuminating display device. While the brain perceives a solid at a different position from the display surface of the display device, the eye tries to focus on the display surface, so it is believed that there will be a contradiction between accommodation and convergence in stereoscopic vision. It has been. According to this concept, this contradiction is considered to cause eye strain during stereoscopic image observation.

  However, the Virtual Reality Society of Japan Journal (TVRSJ) Vol. 16 NO. 2 pp. According to 139-148, 2011 (Katsu Miyao et al.), It has been experimentally shown that the brain perceives a solid at the same position as the display image of the display device, and focuses the eyes on the stereoscopic video display position. This contradicts the above description, but the above description is not supported by scientific experimental data, so it is considered to lack certain reliability. The human eye may be a function acquired by training, but it is designed to focus on the vergence of the eye, with what is originally intended to be seen as a target. Thinking like this, you can understand the correctness of the above paper together with the experimental results.

  That is, in the case where the right eye and the left eye are projected at different positions on the retina in the 3D image, the person moves the eyeball by using the binocular convergence function of the eyes so as to project at the same position on the retina. At that time, the focus is linked to the convergence, but generally 3D images create images with a deep depth of focus, so the image will not be blurred no matter where the focus is moved. On the other hand, as long as an image with a deep depth of focus is viewed no matter where the focal point is, there is no problem in viewing, but the convergence of the eye and the movement of the focus change drastically by being dragged by the presented moving image 3D image. This change is an extraordinary action that exceeds everyday life and appears as fatigue when viewing 3D images. In the case of a moving image, this fatigue is particularly amplified by the change in the depth of the left and right images of the image at the same position and the difference in the depth of the left and right images at every point in the image.

  On the other hand, in the stereoscopic view of a stereoscopic image created for two right and left eyes with still images, the entire image is stereoscopically displayed even though the congestion of human eyes is located on the still screen and there is no difference in depth. I can see it. At this time, the convergence of the eyes and the change of focus do not exceed the daily routine, and fatigue does not occur for long-time viewing. Note that the three-dimensional effect generated other than the staring image recognizes the three-dimensional image by the shift of the image projected on the retina on the right eye and the left eye retina.

In addition, conventional TV viewing of 2D video captures the same video from the right and left eyes from the display surface, and the convergence and focus of the eyes do not deviate from the display screen and are fixed at a fixed position. I don't feel tired. It is often said to avoid looking at a point because the eyes are tired, but this also leads to avoiding an extraordinary situation where the congestion and focus do not fluctuate over time.
As described above, it is an important viewpoint in a stereoscopic image display method in consideration of eye hygiene how to suppress the convergence of the eyes and the change of the focus so as not to be unusual in the presentation of the 3D image.

For example, the National Institute of Information and Communications Technology (NICT) is investigating fatigue when viewing stereoscopic video. In addition, many papers and reports at lectures discuss the safety associated with the viewing environment of 3D images.
Broadcasting business that 3D video has been proven to cause health problems such as eye strain at a certain rate for those who watch it, and is currently difficult to adopt for broadcasting that is viewed by unspecified majority Some people.

In Patent Document 1, a lens unit capable of switching between two-dimensional image display and three-dimensional image display is arranged on a 3D display of an autostereoscopic method, and each of a plurality of display areas is displayed in a three-dimensional display mode and a two-dimensional display. An information processing apparatus is disclosed that is used in a video display apparatus capable of mixed display that can be set to any one of the modes, and that avoids disturbing the three-dimensional image display when mixed display is performed.
In the information processing apparatus disclosed in Patent Document 1, the two-dimensional display is displayed on the back surface in a portion where the three-dimensional image display area (first display area) and the two-dimensional image display area (second display area) in the display screen overlap. It is characterized by giving priority to the three-dimensional display by moving or hiding it.

  The technique disclosed in the cited document 1 is intended to prevent the display of the 3D image from being distorted and difficult to see when the 2D image overlaps the front of the 3D image. It doesn't care about hygiene.

JP 2012-227714 A

  Therefore, the problem to be solved by the present invention is to provide a new 3D image display method and 3D image display device that suppresses eye strain when observing a 3D image and that considers eye hygiene.

  The stereoscopic video display method according to the present invention includes a stereoscopic video display region and a planar video display region that surrounds the entire circumference of the stereoscopic video display region, or a planar video display region and a planar surface on the video displayed on the video display surface of the stereoscopic video display device. A stereoscopic video display area surrounding the entire circumference of the video display area is provided, a three-dimensional video is displayed in the stereoscopic video display area, and a two-dimensional video is displayed in the planar video display area.

  In addition, the stereoscopic video display device of the present invention defines a stereoscopic video display region in a two-dimensional video displayed on a video display surface of a display screen or a self-illuminating display device, and displays a portion from the three-dimensional video to the stereoscopic video display region. A stereoscopic image display setting unit for defining a three-dimensional image, and a stereoscopic image for displaying on the video display surface a video in which the portion of the 3D video defined by the stereoscopic image display setting unit is embedded in the stereoscopic video display region portion in the 2D video A video signal forming unit for forming a video signal, and displaying a 3D video and a 2D video surrounding the 3D video on a video display surface.

Note that it is preferable that the two-dimensional image used in the present invention avoids a monochrome image, a gradation image, a fog image, a cloud image, or the like. A person performs convergence so as to make the difference between the colors and brightness of the images entering both eyes zero, and focuses on the entity to make a stereoscopic view. However, since there is no color difference in a monochromatic image or the like, the convergence of the eye is set to infinity, and the function of fixing the focus of the eye at an appropriate position may be weakened. For this reason, it is preferable not to use a monochromatic image or the like as the two-dimensional image.
In the stereoscopic video display device of the present invention, the stereoscopic video area may be provided so as to surround the entire circumference of the planar video area, contrary to the above.
In the planar video area of the 3D display device, a two-dimensional video can be formed by displaying the same video for each of the right eye and the left eye.

  According to the 3D image display method and display device of the present invention, a 3D image is surrounded by a 3D image on the image display surface, or vice versa. Therefore, a person recognizes a stereoscopic image as a presentation or expression incorporated in a part of a conventional flat image, and the congestion of the eyes is compared with the case where the entire display surface is a stereoscopic image. The focus is stably fixed on the image display surface of the 2D image, avoiding that the convergence and focus of the eye are always indefinite as in the case where the entire surface is a stereoscopic image, reducing the sense of discomfort, The load is greatly reduced and eye strain is less likely to occur.

  In the stereoscopic video display method and display device of the present invention, a stereoscopic video display area is defined based on an object displayed in a two-dimensional video, and the three-dimensional 3D display method is adapted to the defined stereoscopic video display area. The video signal may be transformed.

  For example, in a 2D image including a display screen, a 3D image display area can be defined in accordance with the shape of the display screen, and a 3D image can be formed there. Also, for example, when a 3D image display area is defined in accordance with the outline of a moving person in a 2D image and a 3D image is displayed in accordance with this, the 3D image is displayed in 3D in the plane image. The appearance of a person exercising is displayed, and a great effect is obtained.

  In the stereoscopic video display method and display device of the present invention, it is preferable that the two-dimensional video and the three-dimensional video transition smoothly between the boundary areas. For example, the two-dimensional video and the three-dimensional video may be separated by performing a fade-in / fade-out process on each other or expressing the boundary area as a frame.

  In addition, the stereoscopic image display method and display apparatus of the present invention creates a 3D image by creating a 3D object according to the shape to be displayed when there is an uneven image in the stereoscopic image display area. It is preferable to transform the left-eye video by mapping it to the 3D object. In particular, since a 3D image cannot be viewed as a correct stereoscopic image if there is a flaw in the right-eye image and the left-eye image, it is preferable to perform expansion and compression in accordance with the depth of the image display surface.

  In the stereoscopic image display method and display device of the present invention, the shape, position, and position of the region in which the 3D image is embedded in the 2D image or the region in which the 2D image is embedded in the 3D image using the console. The set time and the range of the 3D video or 2D video to be inserted may be designated.

  The 3D image display method and display apparatus of the present invention display a 3D image in a movie, exhibition, academic lecture, TV broadcast, or the like by displaying a 3D image embedded in a 2D image. 3D images with reduced fatigue can be presented, contributing to eye hygiene.

It is a conceptual diagram which shows the principle of the stereo image display method which concerns on 1st Example of this invention. FIG. 6 is a conceptual diagram showing another aspect of the stereoscopic video display method according to the first embodiment. 1 is a configuration diagram illustrating a configuration of a stereoscopic video display apparatus according to a first embodiment. FIG. It is a conceptual diagram which shows the principle of the stereo image display method which concerns on 2nd Example of this invention. It is a block diagram which shows the structure of the stereo image display apparatus which concerns on 2nd Example.

The stereoscopic image display method and apparatus of the present invention display a 3D image embedded in a 2D image of the ground, or display a 2D image embedded in a 3D image. The line of sight for observing a stereoscopic image is difficult to move because the convergence position and focal position of the eye are dragged by the adjacent planar image, and approaches the everyday mode for the eyes. By feeling the captured production and expression, the sense of incongruity in stereoscopic vision is reduced and eye strain is alleviated.
Hereinafter, based on an example, a 3D image display method and device concerning the present invention are explained in detail, referring to drawings. In the drawings, in order to easily understand the idea of the invention, the description is conceptually described by substituting the video that should be represented by the video signal processed at each stage.

As shown in FIGS. 1 to 3, the stereoscopic image display method and apparatus according to the first embodiment of the present invention are configured such that the ground 2D image and the 3D image embedded in the 2D image are independent of each other. Applicable when
FIG. 1 for explaining the stereoscopic video display method of the present embodiment illustrates a video explained by a lecturer using a stereoscopic video displayed on a display screen. For example, it is possible to assume a case where a place explaining the progress of surgery is photographed while showing a stereoscopic image of visceral surgery.

In the method of this embodiment, a two-dimensional image 11 as shown in FIG. 1A is provided as a ground image. In the 2D image 11 of the ground, a 3D image display area 11b such as a display screen surface for displaying the 3D image is partially captured.
Accordingly, as shown in FIG. 1B, an outline 11c of the stereoscopic video display area 11b is defined to form an image that leaves the flat video display area 11a other than the stereoscopic video display area 11b. The contour 11 c can determine the shape and position in the image based on the provided two-dimensional video 11. The operator can specify and define the position, shape, coordinates, and the like of the contour 11c from the console. It is also possible to automatically determine and use the contour 11c using an image processing technique such as edge extraction.
Note that the portion of the stereoscopic video display area 11b can also be formed by overwriting the stereoscopic video and invalidating it.

As shown in the figure, if the display screen is viewed obliquely from the front, it is projected into a trapezoid, and the position and shape of the display screen may change from frame to frame in accordance with the camera work.
The outline 11c can take an appropriate shape such as a polygon, a circle, or a cloud according to the image. Further, when moving a person into a three-dimensional image, a moving object can be identified and recognized as the outline 11c of the stereoscopic video display area.

On the other hand, the stereoscopic video displayed on the display screen is for the left eye as shown in FIG. 1C at the bottom of FIG. 1 according to a two-parallax stereoscopic display method in which different images based on parallax are given to the right and left eyes. The L image 12 and the R image 13 for the right eye are supplied as a pair.
As the two-parallax stereoscopic display method, there are a polarization method, a shutter method, a parallax method, a wrench killer method and the like using stereoscopic glasses, and in recent years, a new method that allows viewing with the naked eye has been developed.
As shown in FIG. 1D, the portions 12a and 13a to be displayed in the stereoscopic video display area 11c are cut out from the provided L video 12 and R video 13, and as shown in FIG. 11 is expanded and contracted so as to conform to the shape of the stereoscopic image display area 11b, and the embedded L image 12b and the embedded R image 13b are formed.

  Next, as shown in FIG. 1 (f), the composite L video 14 is formed by inserting the embedded L video 12b into the two-dimensional video in the planar video display area 11a shown in FIG. 1 (b). The composite R video 15 is formed by inserting the R video 13b into the two-dimensional video.

  In addition, since the boundary part between the 2D video and the 3D video tends to give the viewer a sense of incongruity, it is preferable to moderate the transition at the boundary to reduce the sense of discomfort. Therefore, the process of fading in one and fading out the other at the part where the 2D video and 3D video are in contact, or forming a frame-like mask in the boundary area so that the 2D video and 3D video do not touch directly. It is possible to adopt a process such as In this embodiment, as shown in FIG. 1 (g), a composite L video 16 in which a frame 16a is formed around the padded L video 12b and a composite R video in which a frame 17a is formed around the padded R video 13b. 17 is generated.

The composite L video 16 and the composite R video 17 are transmitted to the video display 18, and as shown in FIG. 1 (h), a three-dimensional video according to the two-parallax stereoscopic display method can be observed surrounded by the two-dimensional video. A stereoscopic image is displayed.
In this way, a person who observes a 3D image surrounded by 2D images is less likely to suffer from eye strain compared to a case where only the 3D image is displayed on the entire display surface. Can withstand viewing.

FIG. 2 is a conceptual diagram illustrating a case where the stereoscopic video display method according to the first embodiment is applied to a side-by-side stereoscopic video. Compared to the mode shown in FIG. 1, only the stereoscopic video display method is different, and the others are not changed.
In the stereoscopic video display method of this aspect, as shown in FIG. 2A, a 2D video 21 in which a stereoscopic video display area 21b for displaying a 3D video is partially used is used as a ground video.
Therefore, as shown in FIG. 2B, the outline 21c of the stereoscopic video display area 21b is demarcated, and a planar video is formed in which the planar video display area 21a other than the stereoscopic video display area 21b is left. The contour 21 c can determine the shape and position in the image based on the provided object in the two-dimensional video 21.

The position and shape of the stereoscopic video display area can take an appropriate shape, and may change from frame to frame as in the case where an object in the video or a camera to be photographed moves.
On the other hand, as shown in FIG. 2C at the lower end of FIG. 2, the left-eye L image 23 and the right-eye R image 24 are compressed in accordance with the two-parallax stereoscopic display method. Are supplied as side-by-side video signals arranged side by side.
As shown in FIG. 2D, portions 23a and 24a to be displayed in the stereoscopic video display area 21b are cut out from the provided L video 23 and R video 24, and as shown in FIG. The embedded L video 23b and the embedded R video 24b are formed by expanding and contracting and shaping so as to conform to the shape of the stereoscopic video display area 21b.

  Next, as shown in FIG. 2 (f), the L image 23b is embedded into the 2D image leaving the planar image display area 21a surrounding the stereoscopic image display area 21b to form a composite L image 25a. Further, a composite R video 25b is formed by inserting the R video 24b into a two-dimensional video that leaves the same planar video display area 21a, and is combined side by side to form a composite stereoscopic video signal 25.

Further, as shown in FIG. 2G, the composite stereoscopic image 26 is subjected to boundary area processing in which a frame 26a is formed around the embedded L image 23c and a frame 26b is formed around the embedded R image 24c. .
The composite stereoscopic video 26 subjected to the boundary area processing is transmitted to the video display device 27, and a three-dimensional video can be observed in a part of the two-dimensional video according to the two-parallax stereoscopic display method as shown in FIG. An image is displayed.

  FIG. 3 is a diagram illustrating a configuration example of a stereoscopic video display apparatus for realizing the stereoscopic video display method according to the first embodiment. The stereoscopic video display device includes a camera group that generates a planar video signal and a stereoscopic video signal, a signal processing device that receives the video signal from the camera group and forms a video signal in which the stereoscopic video is embedded in the planar video, and a video display It is composed of a vessel. The signal processing apparatus may be accompanied by an operation console for specifying specifications necessary for video processing.

  The stereoscopic image display apparatus according to the present embodiment includes a two-dimensional camera 31 that acquires a planar image, and a right-eye camera 32 and a left-eye camera 33 that acquire a pair of parallax images for forming a stereoscopic image. The R video signal formed by the right-eye camera 32 and the L video signal formed by the left-eye camera 33 are supplied to the stereoscopic video signal generator 34 and converted into a stereoscopic video signal for displaying a stereoscopic image on the video display. Transformed. Various 3D display signal formats that can be accepted by 3D display devices, such as side-by-side video signals that are formed by compressing left and right parallax images and arranging them in the horizontal direction, and two-stream video signals that use one channel for each channel. Can be used.

  The signal processing device 35 is a core device of the stereoscopic video display device of the present embodiment, and is a flat video signal processor 35a, a stereoscopic video display setting device 35b, a flat video transformer 35c, an LR signal separator 35d, and an R video transformer. 35e, an L video transformer 35f, a composite stereoscopic video signal generator 35g, and a boundary area processor 35h, and a console 36 can be attached.

  The flat image signal processor 35a receives the flat image signal from the two-dimensional camera 31 and forms an image. In actuality, it is only necessary to be able to determine the position and display time of an image in a video signal assuming visualization. Instead of receiving the video signal directly from the camera, the video signal recorded in advance on the recording medium can be captured and processed.

The stereoscopic video display setting unit 35c receives the planar image signal, demarcates a stereoscopic video display area in which the stereoscopic video is embedded in the planar video, and designates a part of the stereoscopic video to be displayed in the stereoscopic video display area.
For example, when a 3D image is inserted into a display screen imaged in a flat image, a region of the display screen in the image is defined and a 3D image imaged on the display screen is designated.

The stereoscopic video display area can be defined, for example, by using a point device or specifying an outline of a display area such as a display screen by coordinates in the image by an address. Moreover, it is also possible to mechanically demarcate by automatically detecting the contour of the object using chroma key composition or image processing techniques such as edge extraction and object extraction. Furthermore, in order to synchronize the planar video and the stereoscopic video, the time for displaying the stereoscopic video can be designated by time or frame number.
Note that the shape and position of the stereoscopic video display area can be determined as appropriate. For example, it is possible to display a stereoscopic image by designating a cloud-shaped area on the screen, or to designate a person or an animal that moves around in the video to perform stereoscopic display.

  Specifications relating to stereoscopic video display in the video, such as the shape and position of the stereoscopic video display area on the screen, the range of the stereoscopic video to be displayed, or the stereoscopic video display time, can also be specified via the console 36. Information input from the console 36 is transmitted to the stereoscopic video display setting device 35c, and is used for designating the stereoscopic video display in the planar video.

  Also, the stereoscopic video signal supplied from the stereoscopic video signal generator 34 is input to the LR signal separator 35d, and is separated into a right-eye video signal and a left-eye video signal. The LR signal separator 35d can also take in and process the parallax video signal recorded in advance on the recording medium.

  The R video signal for the right-eye video separated by the LR signal separator 35d is input to the R video transformer 35e. The R video transformer 35e cuts out the right-eye video portion corresponding to the stereoscopic video to be displayed in the stereoscopic video display area, and changes the shape of the display area based on the display area information supplied from the stereoscopic video display setting unit 35c. In addition, the right-eye video is deformed, compressed and expanded, and supplied to the composite stereoscopic video signal former 35g.

  The L video signal for the left-eye video separated by the LR signal separator 35d is input to the L video transformer 35f, and the left-eye video portion corresponding to the stereoscopic video to be displayed in the stereoscopic video display area is displayed. It is cut out, deformed based on the display area information, compressed and decompressed, matched with the shape of the stereoscopic video display area, and supplied to the synthesized stereoscopic video signal generator 35g.

  The composite stereoscopic video signal generator 35g corresponds to the planar video signal formed by cutting out the stereoscopic video display area from the flat video by the flat video transformer 35c and the part of the stereoscopic video display area output from the R video transformer 35e. Receiving the right-eye video signal and the left-eye video signal corresponding to the portion of the stereoscopic video display area output from the L video transformer 35f, and receiving the stereoscopic video right-eye video signal in the stereoscopic video display area. And a composite L video signal in which a left-eye video signal of a stereoscopic video is embedded in a stereoscopic video display area of a planar video, and the two parallax image signals are combined to generate 2 A composite stereoscopic video signal of the parallax stereoscopic display method is generated and supplied to the video display 37.

The synthesized stereoscopic video signal output from the synthesized stereoscopic video signal forming unit 35g is further passed through the boundary area processor 35h before being supplied to the video display 37, so that the plane video around the stereoscopic video display area can be obtained. It is preferable to form a transition zone in a boundary area where the stereoscopic video is in contact so as to prevent interference between the planar video and the stereoscopic video.
Boundary area processing that prevents interference between a planar image and a stereoscopic image can be achieved by, for example, fading in one video at the transition zone and fading out the other video, or forming a frame-like video surrounding the stereoscopic video Can be achieved by the following process.

In this manner, the video display 37 displays a composite video in which a stereoscopic video is embedded in a part of a flat video on a display screen, a self-illuminating display device, or the like. The viewer can observe the video using stereoscopic glasses.
Note that the stereoscopic video signal formed by the signal processing device 35 is recorded on a recording medium such as a hard disk, an optical storage medium, or an electromagnetic storage medium, and then reproduced and used instead of being directly transmitted to the video display 37. You can also

  The stereoscopic image display apparatus of the present embodiment displays the stereoscopic image of the two-parallax stereoscopic display method displayed on the video display 37 because the three-dimensional image is displayed surrounded by the two-dimensional image. Recognizes stereoscopic images as a part of the normal plane image, which reduces the sense of discomfort and greatly reduces the load on the eye, making it difficult to cause eye strain. effective.

  Note that the stereoscopic video display method and apparatus of the present embodiment can also be used for broadcasting of stereoscopic video television. It can also be used for live broadcasting. In live broadcasting, planar video and stereoscopic video may be acquired in accordance with a scenario set in detail in advance, and a video signal in which stereoscopic video is embedded at a predetermined position may be generated and transmitted. A method using chroma key composition is also effective.

  In addition, although the said Example demonstrated the case where a 3D video display surface is a plane, it can utilize also when a video display surface is not flat. For example, in a simple case, the stereoscopic image display surface may be a spherical surface or a pyramid surface, and in a complicated case, a stereoscopic image may be projected onto the wall surface of a building. In these cases, a problem arises particularly in the formation of a 3D image. Therefore, a 3D object corresponding to the projection plane is created, and a process of mapping the 3D image on the surface of the 3D object is performed. In this case, the right-eye and left-eye video signals of the three-dimensional video are deformed, expanded / compressed according to the distance to the surface of the stereoscopic object.

  4 and 5 are diagrams illustrating a stereoscopic image display method and apparatus according to a second embodiment of the present invention. In the second embodiment, only a part of a set region is displayed in a three-dimensional manner in a two-parallax stereoscopic display method, and a portion around the stereoscopic image display region is displayed as a two-dimensional image of the ground. .

  In the method of the present embodiment, as shown in FIG. 4A, a pair of stereoscopic video signals of a left-eye L video 41 and a right-eye R video 42 in a two-parallax stereoscopic display system are input. The video is taken with parallax for the same object. The signaling scheme may be side-by-side, two streams, or any other suitable scheme.

Therefore, as shown in FIG. 4B, for both the left and right images, outlines are defined that divide the flat image display areas 41a and 42a for displaying the flat image and the stereoscopic image display areas 41b and 42b for stereoscopic display.
Then, with respect to one video, the video in the stereoscopic video display area is left, and the video in the planar video display area of the other video is merged and replaced with a new video. That is, as shown in FIG. 4B, for example, the image signal of the stereoscopic video display area 42b of the R video 42 is left and merged with the image signal of the planar video display area 41a of the L video 41, so The R image 44 is assumed. The left-eye L video 43 corresponding to this is the same as the first L video.

  The stereoscopic video obtained by the two-parallax stereoscopic display method using the L video 43 and the R video 44 formed here is a video in which the stereoscopic video is present in a portion surrounded by the planar video, and the stereoscopic video portion is observed. The feeling of discomfort is reduced, and eye strain is low even when observed for a long time.

  Further, preferably, as shown in FIG. 4 (c), a composite L video 45 and a composite R video 46 provided with strip-shaped buffer frames 45a and 46a for dividing the stereoscopic video and the planar video at the outline of the stereoscopic video display area are provided. Form. Processing may be performed so as to fade in and out at the buffer frames 45a and 46a, so that the flat image and the stereoscopic image gradually change from each other. Eye strain can be further reduced by such boundary region processing.

  The composite L video 45 and the composite R video 46 formed in this way are transmitted to the video display 47 and displayed in three dimensions. The displayed video is surrounded by a planar video display area 47a where the same video is displayed on the left and right and is observed as a normal planar video, and there is a stereoscopic video display area 47b in which the stereoscopic video is displayed by the two-parallax stereoscopic display method. To be. Since the planar image and the stereoscopic image are in contact with each other through the buffer frame, the eye strain of the observer is greatly reduced.

  FIG. 5 is a diagram illustrating a configuration example of a stereoscopic video display device for realizing the stereoscopic video display method according to the second embodiment. The stereoscopic video display device includes a pair of cameras that generate a stereoscopic video signal, a signal processing device that receives the video signal from the camera and forms a video signal in which the stereoscopic video is embedded in a planar video, and a video display Is done. The signal processing apparatus may be accompanied by an operation console for specifying specifications necessary for video processing.

  The stereoscopic video display apparatus according to the present embodiment includes a left-eye camera 51 and a right-eye camera 52 that acquire a pair of parallax images for forming a stereoscopic video. The L video signal formed by the left-eye camera 51 and the R video signal formed by the right-eye camera 52 are supplied to the stereoscopic video signal generator 53 to display a stereoscopic image on the video display. It is transformed into a stereoscopic video signal such as a stream system.

  The signal processing device 54 includes an LR signal separator 54a, an L video transformer 54b, a stereoscopic video display setting device 54c, a composite stereoscopic video signal generator 54d, and a boundary area processor 54e, and can be provided with an operation console 55. .

The stereoscopic video signal supplied from the stereoscopic video signal generator 53 connected to the stereoscopic camera is input to the LR signal separator 54a and separated into a right-eye video signal and a left-eye video signal.
One video signal separated by the LR signal separator 54a, for example, the R video signal for the right-eye video, is input to the R video transformer 54b.
The stereoscopic video display setting unit 54c demarcates a stereoscopic video display area in which a stereoscopic video portion is left based on the R video signal.

  The specifications regarding the stereoscopic video display in the video, such as the shape and position of the stereoscopic video display area in the screen used by the stereoscopic video display setting unit 54c, the range of the stereoscopic video to be displayed, or the stereoscopic video display time, are described in the first embodiment. It is also possible to specify via the console 55 configured in the same manner as in FIG.

Based on the display area information supplied from the stereoscopic video display setting unit 54c, the R video transformer 54b cuts out the video portion of the stereoscopic video display area from the R video signal and supplies it to the combined stereoscopic video signal generator 54d.
The other video signal separated by the LR signal separator 54a, for example, the L video signal for the left-eye video, is supplied to the composite stereoscopic video signal former 54d as it is.

  The composite stereoscopic video signal generator 54d uses the L video signal supplied from the LR signal separator 54a and the R video signal in the stereoscopic video display area supplied from the R video transformer 54b to generate the first L video signal. A composite R video signal is generated by embedding an R video signal corresponding to a portion of the stereoscopic video display area, and the first L video signal is directly used as a composite L video signal to form a composite stereoscopic video signal of a two-parallax stereoscopic display system. Then, it is supplied to the boundary area processor 54e.

  The boundary area processor 54e forms a transition band in the boundary area where the planar video display area and the stereoscopic video display area in the synthesized stereoscopic video output from the synthesized stereoscopic video signal generator 45d are in contact, and fades in and fades out in the transition band. Processing and frame removal processing are performed and supplied to the video display 56.

In this way, the video display 56 displays a composite video in which a stereoscopic video is embedded in a part of the planar video.
Also in the stereoscopic video display apparatus of the present embodiment, as in the first embodiment, the stereoscopic video of the two-parallax stereoscopic display method displayed on the video display 56 is displayed with the 3D video surrounded by the 2D video. Therefore, the sense of incongruity when observing the video is reduced and eye strain is less likely to occur.

In the above embodiment, the case where the 3D image is displayed surrounded by the 2D image has been described, but conversely, when the 2D image is displayed surrounded by the 3D image, the eye congestion and It is difficult for the focus position to be dragged to a state where a two-dimensional image is observed, and eye strain can be suppressed.
In this embodiment, the case of using a stereoscopic video display device using a two-parallax stereoscopic display method has been described. However, even when another stereoscopic video display method is used, a stereoscopic video and a planar video can be coexisted by the method of the present invention. By making it difficult to move the vergence and focus position of the eye from the plane image plane, the effect of suppressing eye strain remains unchanged.

  The present invention relates to a stereoscopic video display method and apparatus that enables stereoscopic video display that suppresses eye strain and prevents eye hygiene in movies, exhibitions, academic lectures, TV broadcasts, IPTV, 3D content packages, and the like. Is to provide.

11 2D image, 11a 3D image display area, 11b 3D image display area, 11c Outline of 3D image display area 12 L image, 12a Part of 3D image display area, 12b Filled L image 13 R image, 13a 3D image display area Part 13b, embedded R video 14, composite L video 15 composite R video 16 composite L video forming a frame, 16a frame 17 composite R video forming a frame, 17a frame 18 video display 21 two-dimensional video, 21a plane video Display area, 21b Stereoscopic video display area, 21c Contour 23 L video, 23a Part displayed in stereoscopic video display area, 23b Filled L video 24 R video, 24a Part displayed in stereoscopic video display area, 24b Filled R video 25 Composite stereoscopic video signal, 25a Composite L video, 25b Composite R video 26 Composite stereoscopic video, 26a Frame, 26b Edge 27 Video display 31 Two-dimensional camera 32 Right-eye camera 33 Left-eye camera 34 Stereo video signal generator 35 Signal processing device, 35a plane video signal processor, 35b stereoscopic video display setter, 35c plane video transformer, 35d LR Signal separator, 35e R video transformer, 35f L video transformer, 35g composite stereoscopic video signal generator, 35h boundary area processor 36 console 37 video display 41 L video, 41a planar video display area, 41b stereoscopic video display Area 42 R video, 42a Flat video display area, 42b Stereoscopic video display area 43 L video 44 R video 45 Composite L video, 45a Buffer frame 46 Composite R video, 46a Buffer frame 47 Video display, 47a Flat video display area, 47b Stereoscopic image display area 51 Left-eye camera 52 Right-eye camera 53 Stereoscopic image signal generator 54 Signal processing device 54 a LR signal separator, 54b L video transformer, 54c stereoscopic video display setting unit, 54d composite stereoscopic video signal generator, 54e boundary area processor 55 console 56 video display

Claims (7)

  A stereoscopic video display area and a planar video display area are provided on the video display surface of the stereoscopic video display device so that one circumference surrounds the other, and a three-dimensional video is displayed in the stereoscopic video display area. A stereoscopic image display method, comprising: displaying a two-dimensional image in an area.   The stereoscopic video display area is defined based on an object displayed on the two-dimensional video, and a two-parallax stereoscopic display type three-dimensional video signal adapted to the defined stereoscopic video display area is transformed. Item 3. The stereoscopic image display method according to Item 1.   The stereoscopic image display method according to claim 1, wherein a boundary region in which a transition between the two-dimensional image and the three-dimensional image smoothly transitions is provided.   The 3D object according to the shape of the image display surface for displaying the image is formed, and the 3D image is mapped to the 3D object image and transformed. The stereoscopic image display method described in 1.   A stereoscopic video display setting section that defines a stereoscopic video display area in a two-dimensional video to be displayed on the video display surface and a portion to be displayed from the three-dimensional video to the stereoscopic video display area, and the stereoscopic video display setting section. A 3D video signal forming unit for forming a 3D video signal for displaying on the video display surface a video in which a 3D video part is embedded in a 3D video display area in the 2D video. And a stereoscopic image display device for displaying a two-dimensional image surrounding the image on the image display surface.     The stereoscopic video display setting unit defines the stereoscopic video display area based on an object displayed on the two-dimensional video, and the video signal forming unit is a two-parallax stereoscopic display that matches the defined stereoscopic video display area 6. The stereoscopic video display apparatus according to claim 5, wherein a three-dimensional video signal of a system is formed.   The stereoscopic image display apparatus according to claim 5, further comprising a boundary area processor that provides a boundary area between the two-dimensional image and the three-dimensional image that smoothly transitions between the two-dimensional image and the three-dimensional image.

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