WO2012036056A1 - Stereoscopic image display device, stereoscopic image display method, program for executing stereoscopic image display method on computer, and recording medium on which said program is recorded - Google Patents

Abstract

Provided is a stereoscopic image display device which displays an image for use in stereoscopy formed from a right-eye image and a left-eye image, and which enables stereoscopy by presenting the right-eye image to the right eye and the left-eye image to the left eye. The stereoscopic image display device comprises: an input unit which inputs degree of visual disparity adjustment information for changing the degree of visual disparity of image data for use in stereoscopy formed from the right-eye image and the left-eye image; a visual disparity adjustment unit which adds a process to at least one of the right-eye image and the left-eye image which configure the stereoscopic image data, adjusting the visual disparity; a display means for presenting the right-eye image and the left-eye image of the image data for use in stereoscopy respectively to the right eye and the left eye, displaying the stereoscopic image; and an image changeover processing unit, which, when the visual disparity adjustment unit adjusts the visual disparity of the image data for use in stereoscopy based on the degree of visual disparity adjustment information which is inputted from the input unit, displays a different image between a pre-adjustment display screen and a post-adjustment display screen, such that a portion of the image is concealed, said different image differing from the current image having the visual disparity being adjusted. It is thus possible to avoid observer discomfort or 3-D disorientation when adjusting visual disparity, and to achieve ideal stereoscopic viewing.

Description

Stereoscopic image display apparatus, stereoscopic image display method, program for causing computer to execute stereoscopic image display method, and recording medium recording the program

The present invention relates to an apparatus for displaying a stereoscopic image, and more particularly to a display method for adjusting the stereoscopic effect of a stereoscopic image, a stereoscopic image display program, and a computer-readable recording medium on which the recording method is recorded.

Humans have the ability to grasp the space from the difference in images obtained by two eyes with a fixed interval. The shift of the corresponding points in the image obtained from different viewpoints by the left and right eyes is called parallax, and the positional relationship of the target is grasped three-dimensionally using parallax as one of the cues. By utilizing this, a means for displaying a right eye image and a left eye image on the right eye is provided, and stereoscopic images can be displayed by presenting parallax images as the right eye image and the left eye image. It is known to be possible. Here, a plurality of images provided with parallax for the purpose of stereoscopic viewing are referred to as stereoscopic images.

In stereoscopic vision, it is said that humans associate the angle between the optical axes of both eyes according to parallax, that is, the magnitude of convergence with the distance to the object. Therefore, if the right-eye image is shifted to the right and the left-eye image is relatively shifted to the left and the parallax image is shown, the display object can be perceived farther than the actual display surface. However, if too much parallax is applied at this time and the parallax exceeds the distance between the eyes of the observer, more precisely the distance between the pupils when looking at infinity, the situation cannot occur in the natural world, and stereoscopic viewing is not possible. It becomes impossible. Similarly, extreme parallax also causes an unnatural positional relationship on the short distance side, and an extreme crossing is forced on the viewer, making it impossible to perform comfortable stereoscopic viewing. As described above, stereoscopic viewing can be comfortably performed within a certain range of the parallax amount of the stereoscopic image. However, when the parallax amount is large, the images of both eyes are not fused and stereoscopic viewing is impossible.

Therefore, when displaying a stereoscopic image that is difficult to stereoscopically view due to an excessive amount of parallax or impossible to stereoscopically display, the parallax is adjusted by shifting the display position of the left and right images to the left and right so that the stereoscopic image can be easily viewed. The method is shown in Patent Document 1 below.

Further, a method of creating an interpolation image with a small parallax and displaying the parallax gradually when displaying two stereoscopic images in succession is disclosed in Patent Document 2 below.

JP-A-9-121370 JP 2009-239389 A

According to the method of Patent Document 1, parallax adjustment is performed by shifting the display positions of the left and right images, and the depth position of the displayed object is moved back and forth as a whole, so that the displayed objects can be easily fused. it can. However, if the display position is shifted to the left or right with the left and right images displayed, the display position in the depth direction of the displayed image will change, and stereoscopic viewing will not be possible at the moment of changing the parallax amount, or even if it can be displayed Causes the viewer to feel a sudden movement in the front-rear direction, creating a sense of incongruity.

Therefore, when performing a process of gradually changing the amount of parallax when performing parallax adjustment according to the method of Patent Document 2, the observer can continue stereoscopic viewing. However, especially when the size of the display screen occupying the viewer's field of view is large or when the screen is being observed in a concentrated manner, the observer will feel as if it is in the depth direction, that is, Gets the sensation of moving back and forth. If there is a sense of movement that is not accompanied by movement, a sense of incongruity (Sensory Conflict) is felt, and depending on the conditions, motion sickness, which is close to motion sickness, especially movement in the depth direction inherent to stereoscopic vision May cause so-called 3D sickness.

To avoid 3D sickness, there is a method of performing parallax adjustment so slowly that humans cannot perceive it. However, the vibration period at which seasickness is likely to occur is generally 6 seconds. Video sickness and motion sickness are not necessarily due to the same mechanism, but if you adjust the parallax slowly so that you can't perceive movement in a period sufficiently longer than this 6-second period, it takes a considerable amount of time. turn into.

An object of the present invention is to provide a stereoscopic image display device, a stereoscopic image display method, and a stereoscopic image display method that achieve comfortable stereoscopic viewing while avoiding an uncomfortable feeling and 3D sickness of an observer with respect to image position fluctuation in the depth direction when adjusting parallax. A program for causing a computer to execute the method and a recording medium recording the program are provided.

According to an aspect of the present invention, a stereoscopic image including a right-eye image and a left-eye image is displayed, and stereoscopic viewing is possible by presenting the right-eye image to the right eye and the left-eye image to the left eye An input unit for inputting parallax amount adjustment information for changing the parallax amount of stereoscopic image data including a right-eye image and a left-eye image, and the stereoscopic image A parallax adjustment unit that adjusts parallax by applying processing based on the parallax amount adjustment information to at least one of the right-eye image and the left-eye image that constitutes data, and the stereoscopic image data The right-eye image and the left-eye image are presented to the right eye and the left eye, respectively, and a display unit that displays a stereoscopic image and the parallax adjustment unit are based on the parallax amount adjustment information input from the input unit. image data When adjusting the amount of parallax, an image conversion processing unit that displays a different image from the image whose current amount of parallax is being adjusted between the display screen before adjustment and the display screen after adjustment. A stereoscopic image display device characterized by this is provided. Thereby, a depth position can be adjusted without a sense of incongruity.

The other image may be displayed so as to cover part of the image.

The image conversion processing unit preferably displays a uniform image without a pattern as the another image. In this way, it can be realized with simple hardware.

The image conversion processing unit preferably displays an image having a uniform parallax as the another image. The convergence angle of the observer during the image conversion can be set to an intended angle.

Preferably, the image conversion processing unit displays an image having a parallax value between the parallax of the image before adjustment and the parallax of the image after adjustment as the other image. Thereby, parallax can be changed smoothly.

Preferably, the image conversion processing unit displays a plurality of images whose parallax is continuously changed as the another image. Thereby, the vergence angle of the observer during image conversion can be controlled intentionally.

In another image composed of a plurality of images whose parallax is continuously changed, it is preferable that the portion where the parallax is changed is a part of the screen. Thereby, 3D sickness can be avoided.

It is preferable that a part where the parallax is changed among the other images including a plurality of images whose parallax is continuously changed is determined based on a characteristic part of the stereoscopic image data. Thereby, parallax can be changed without a sense of incongruity.

The another image composed of a plurality of images whose parallax is continuously changed is preferably selected so that the parallax is continuously changed from the parallax of the image before adjustment to the parallax of the image after adjustment. . Thereby, parallax can be changed smoothly.

The time for displaying the another image is preferably 0.3 seconds or more. This can prevent video sickness.

Crossfade processing is performed on at least one of the display screen at the time of switching from the display screen before the adjustment to the other image and the conversion from the other image to the image after the adjustment. preferable. Thereby, it is possible to weaken the stimulation of the image and reduce fatigue.
It is preferable to perform a wipe process on at least one of the display screen at the time of conversion from the display screen before the adjustment to the other image and the conversion from the other image to the image after the adjustment. Thereby, it is possible to weaken the stimulation of the image and reduce fatigue.

According to another aspect of the present invention, a stereoscopic image including a right-eye image and a left-eye image is displayed, and the stereoscopic image is displayed by presenting the right-eye image to the right eye and the left-eye image to the left eye. A method for displaying a stereoscopic image, the step of inputting parallax amount adjustment information for changing a parallax amount of stereoscopic image data composed of a right-eye image and a left-eye image, and the stereoscopic image A parallax adjustment step of adjusting the parallax by applying processing based on the parallax amount adjustment information to at least one of the right-eye image and the left-eye image that constitutes the data; and the stereoscopic image data A display step for displaying a right-eye image and a left-eye image to the right eye and the left eye, respectively, and displaying a stereoscopic image, and input in the parallax adjustment step by the input step When adjusting the parallax amount of the stereoscopic image data based on the parallax amount adjustment information, the current parallax amount is different between the display screen before the adjustment and the display screen after the adjustment. There is provided a stereoscopic image display method comprising the step of displaying another image.

In the parallax adjustment step, the step of displaying another image different from the image whose parallax amount is currently being adjusted may cover a part of the image.

The present invention may be a program for causing a computer to execute the stereoscopic image display method described above, or a computer-readable recording medium for recording the program.

This specification includes the contents described in the specification and / or drawings of Japanese Patent Application No. 2010-207056 which is the basis of the priority of the present application.

According to the present invention, when adjusting the parallax, it is possible to avoid a sense of incongruity and 3D sickness associated with changing the parallax and realize a comfortable stereoscopic view.

It is a functional block diagram which shows the example of 1 structure of the stereo image display apparatus by embodiment of this invention. It is a functional block diagram which shows the example of 1 structure of the parallax adjustment part by this embodiment. It is the figure which looked at the relationship between parallax and depth display from the top. It is a figure which shows the example of a display screen by this embodiment. It is a flowchart figure which shows the flow of the parallax adjustment process in the stereo image display by the 1st Embodiment of this invention. It is a figure which shows the example of a display in alignment with the parallax adjustment process in the stereo image display by the 1st Embodiment of invention. It is a flowchart figure which shows the flow of the parallax adjustment process in the stereo image display by the 2nd Embodiment of this invention. It is a flowchart figure which shows the flow of the parallax adjustment process in the stereo image display by the 3rd Embodiment of this invention. It is a figure which shows the example of a display in alignment with the parallax adjustment process in the stereo image display by the 3rd Embodiment of this invention. It is a figure which shows the example of an external appearance structure of the three-dimensional image display apparatus by the 4th Embodiment of this invention.

<First Embodiment>
Hereinafter, a stereoscopic image display device according to a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram illustrating a configuration example of the stereoscopic image display apparatus according to the present embodiment. As shown in FIG. 1, the stereoscopic image display apparatus A according to the present embodiment processes the input image data with the input unit 10 and generates display data that can be stereoscopically displayed (hereinafter, stereoscopic image data). A stereoscopic image processing unit 100 that performs image processing for performing image processing, a parallax adjustment unit 101 that adjusts parallax of the image, a display control unit 102 that controls display by matching an image with the display unit, and a display unit 103 that displays an image The system control unit 104 controls the entire system, the user input unit 105 that the user inputs, and the glasses synchronization unit 106 that synchronizes the shutter glasses, and uses the shutter glasses 107 that the user wears separately. .

FIG. 2 is a diagram illustrating a configuration example of the parallax adjustment unit 101. As shown in FIG. 2, the parallax adjustment unit 101 includes a left-eye image shift processing unit 1011 and a right-eye pixel shift processing unit 1012, a left-eye image conversion processing unit 1013, and a right-eye image conversion processing unit 1014, The conversion image recording unit 1015 and the communication / control unit 1016 are included. Next, the operation of each component will be described.

In the stereoscopic image display apparatus A, the image data input via the input unit 10 is expanded into left-eye image data and right-eye image data in the stereoscopic image processing unit 100 according to the input format. At the same time, if there is additional information in the input image data, the additional information is extracted and transmitted to the system control unit 104. Here, the input image data may be any data such as data based on broadcast waves, data read electronically from a recording medium, or data transmitted from a network. Further, the right-eye image data and the left-eye image data may be created from a single piece of image data. That is, it may be a multi-viewpoint image synthesized from image data and depth data, or a multi-viewpoint image created by estimating depth information.

The developed left-eye image data and right-eye image data are sent to the parallax adjustment unit 101 to adjust parallax. Inside the parallax adjustment unit 101, a communication / control unit 1016 communicating with the system control unit 104 controls each component. The left-eye image shift processing unit 1011 and the right-eye image shift processing unit 1012 receive an instruction (parallax amount adjustment information) from the system control unit 104 via the communication / control unit 1016, and receive the left-eye image and the right-eye image. Each is shifted left and right to adjust the parallax. The left and right eye image data whose parallax has been adjusted are input to the left eye image conversion processing unit 1013 and the right eye 1014, respectively. Image data from the converted image recording unit 1015 can be input to the left-eye image conversion processing unit 1013 and the right-eye image conversion processing unit 1014, and an instruction from the system control unit 104 is received via the communication / control unit 1016. In response, the image is converted between the input left and right eye image and another image to be a converted image.

The left-eye image and right-eye image whose parallax has been adjusted are sent to the display control unit 102. The display control unit 102 performs display control in accordance with the display unit 103 and sends a signal to the glasses synchronization unit 106. The glasses synchronization unit 106 sends a synchronization signal to the shutter glasses 107 worn by the user, and synchronization processing with the display unit 103 is performed. More specifically, for example, a liquid crystal display panel is used for the display unit 103 to alternately display a left-eye image and a right-eye image, and perform stereoscopic viewing in synchronization with the shutter glasses 107 worn by the observer. In this case, the display control unit 102 outputs the left-eye image and the right-eye image to the display unit 103 alternately. The output frequency is, for example, 120 images for the left eye and for the right eye, each per second. The display unit 103 displays the image sent from the display control unit 102 at any time. When the left-eye image is displayed on the display unit 103, the left-eye shutter of the shutter glasses 107 is opened and the right-eye shutter is closed. The left-eye image is displayed on the left eye, and when the right-eye image is displayed, the left-eye shutter is closed, and the right-eye shutter is opened to display the right-eye image on the right eye. Realize.

The observer uses the user input unit 105 to input parallax amount adjustment data for the screen to be displayed. The user input unit 105 can be realized by a remote controller, for example, but can be realized by various means such as a keyboard, a mouse, a touch panel, and a dial, and may be gesture recognition regardless of the format. The parallax amount adjustment data input from the user input unit 105 is transmitted to the parallax adjustment unit 101 via the system control unit 104. The parallax adjustment unit 101 performs parallax adjustment processing based on the received parallax amount adjustment data. If the parallax amount adjustment data is data indicating no parallax adjustment, the parallax adjustment unit 101 outputs the left and right eye image data as it is without performing the parallax adjustment processing.

Next, the relationship between parallax and depth display is shown in FIG. FIG. 3 is a top view of the viewer and the display. FIG. 3A shows a normal two-dimensional display state, in which a corresponding point between the right-eye image and the left-eye image is at the same position on the display (display surface) when a stereoscopic image is displayed. In this case, this corresponding point is perceived as being on the display. FIG. 3B shows a state where the corresponding points P ₂ and P ₃ between the right-eye image and the left-eye image are shifted to the right on the display and the left-eye image to the left on the display. In this state, the observer perceives this point behind the display surface (P ₄ ).

FIG. 3C shows a state where the corresponding points P ₅ and P ₆ of the right-eye image and the left-eye image are shifted to the left on the display and the left-eye image to the right on the display. In this state, the observer perceives this point in front of the display surface (P ₇ ).

FIG. 3D is a diagram summarizing these. As described above, when the corresponding point between the right eye image and the left eye image is displayed with the right eye image shifted to the right and the left eye image shifted to the left, and the distance between the corresponding points is equal to the binocular distance, this point is Although it is perceived at infinity, if the distance between corresponding points exceeds the distance between both eyes, the line of sight does not become a divergent direction and cannot be fused. Similarly, when the corresponding points of the right-eye image and the left-eye image on the display are greatly shifted to the left for the right-eye image and to the right for the left-eye image (P ₈ , P ₉ ), the line of sight is extremely crossed. It becomes a state and cannot be fused. Accordingly, the depth range in which stereoscopic viewing can be comfortably performed, that is, the comfortable fusion range shown in FIG. 3D is inside the display surface with respect to the fusion range.

By applying these principles and shifting the left and right eye images relatively to the left and right, it is possible to move the depth of the stereoscopic image as a whole toward the back and the front.

Here is an example of the actual operation of the observer. The observer operates the user input unit 105 to enter a mode for adjusting the parallax amount. FIG. 4 shows a display example on the display unit 103 in the parallax amount adjustment mode. In the state shown in FIG. 4, an image and a slide bar 103 a are displayed on the display unit, and the slide bar 103 a displayed on the right side of the screen by operating the user input unit 105 in this state is indicated by an arrow. And the corresponding parallax adjustment amount can be set.

Through the above operation by the observer, the system control unit 104 sets the shift amount of the left and right images to the parallax adjustment unit 101 and instructs the start of parallax adjustment. When receiving the instruction to start parallax adjustment, the parallax adjustment unit 101 performs parallax adjustment according to the following three steps.

FIG. 5 is a flowchart showing a flow of suggestion adjustment processing according to the present embodiment. FIG. 6 is a diagram illustrating a display example along the flow of processing.

The process is started (Start: Step S1). As a first step, the left-eye and right-eye image conversion processing units 1013 and 1014 cross-fade, that is, gradually darken the current image display shown in FIG. 5 (step S2 in FIG. 5 and (a) to (b) in FIG. 6), finally, a process of “another image” recorded in the converted image recording unit 1015 is performed (step in FIG. 5). S3, (c) of FIG. This process is sometimes referred to as dissolve. Here, “another image” is preferably an image with little light stimulation, and may be a black screen as an example. In FIG. 6C, a black image is displayed.

Also, it is possible to intentionally reset the state of congestion and adjustment to the intended state by “another image”, and it is advisable to prepare an image according to that.

For example, when observing a stereoscopic image with depth, the relationship between convergence and adjustment differs depending on which position on the screen the observer is looking at. More specifically, the adjustment corresponds to the distance from the screen. In this state, there is a convergence according to the parallax of the object being observed and the depth is perceived. If the screen is changed in this state, the parallax at the position that was viewed on the screen is changed abruptly. In order to avoid this phenomenon, for example, when an image with an intended parallax is displayed in a small area of a uniform background screen without a pattern, the line of sight is guided by the displayed parallax image, and is set to a convergence corresponding to the image. If the screen is changed to the next screen in this state, the change in the parallax before and after the screen change can be performed via the intended state. By guiding, stereoscopic viewing can be facilitated.

An image that is easy to recognize is preferable, but may be a character, for example.

Next, as a second step, the parallax adjustment unit 101 performs a process of holding another image display for 0.3 seconds or longer (step S4 in FIG. 5, (c) to (d) in FIG. 6).

Humans may experience photosensitive seizures (PSS) when subjected to strong light stimuli such as blinking of light. In order to avoid light-sensitive seizures, it is recommended to avoid more than 3 blinks per second, which can be a strong light stimulus. It is generally said that it takes about 0.2 seconds for a human to adjust the focus with respect to an object. Therefore, it is estimated that it takes about the same time to return from the state where the convergence and the adjustment of the focus position do not coincide with each other to the state where the convergence and the adjustment coincide with each other. For these reasons, it is desirable that the duration of the second step be 0.3 seconds or longer.

As a third step, the parallax adjustment unit 101 crosses the display from “another image” recorded in the converted image recording unit 1015 to the image after parallax adjustment in the left-eye and right-eye image conversion processing units 1013 and 1014. Processing for fading is performed (step S5 in FIG. 5, (d)-(e) in FIG. 6). Next, the image after parallax adjustment is displayed (step S6 in FIG. 5, (f) in FIG. 6), thereby completing the parallax adjustment processing (step S7 in FIG. 5).

By performing the processing shown in FIGS. 5 and 6, the parallax adjustment unit 101 resets the state of congestion and adjustment of the observer to an intended state, and presents a screen on which further parallax adjustment has been performed to the observer. . Thereby, the observer can perform the parallax adjustment without feeling a sense of incongruity in which the parallax is rapidly adjusted or a sense of movement accompanying the parallax being gradually adjusted. For the above reason, the “different image” is better if it is an image having a uniform parallax, and more preferably if it has an intermediate parallax between the pre-adjustment and post-adjustment images.

In the first step and the third step, the respective images are converted by the cross-fade process. This is a process for suppressing the movement of the image and reducing the light stimulus. . Therefore, this process is not limited to the crossfade process, and the object can be achieved by, for example, a wipe process.

In the above example, two images, the right-eye image and the left-eye image, are given as the stereoscopic images. However, the number of images is not limited to two, and may be image data for a multi-viewpoint image. . In addition, a time-division type stereoscopic display unit using shutter glasses is shown as a stereoscopic display system. However, the stereoscopic display system is not limited to the time-division type, and uses a parallax barrier or a lenticular lens. Any type of display system capable of stereoscopic viewing, such as a projector, may be used. As described above, a display for multi-viewpoint images may be used.

Furthermore, the processing unit for inserting “another image” to be a conversion image is configured as the left-eye image conversion processing unit 1013 and the right-eye image conversion processing unit 1014 in the parallax adjustment unit 101. As long as it is performed between the parallax adjustment unit 101 and the display unit 103, it may be executed anywhere.

As described above, according to the present embodiment, when adjusting the amount of parallax, by displaying “another image” with less light stimulation for a predetermined time, discomfort associated with changing the parallax, 3D sickness can be avoided and comfortable stereoscopic vision can be easily realized.

<Second Embodiment>
The stereoscopic image display device according to the second embodiment of the present invention will be described below. In the second embodiment, only the content of the parallax adjustment step in the first embodiment is different from the content of the first embodiment. Other hardware configurations and user interface implementation methods are the same as those described in the first embodiment, and detailed description thereof is omitted.

In the present embodiment, the parallax adjustment unit 101 in FIG. 1 performs parallax adjustment according to the following three steps upon receiving an instruction to start parallax adjustment. FIG. 7 is a flowchart showing the flow of processing in the present embodiment.

When the process is started (Start: Step S11), as the first step, the parallax adjustment unit 101 records the current display in the converted image recording unit 1015 in the left and right eye image conversion processing units 1013 and 1014. A process of crossfading to “another image” is performed (step S12). At this time, “another image” reads an image corresponding to the current parallax amount setting from among the converted images recorded in the converted image recording unit 1015 (step S12).

Note that the converted image recording unit 1015 has, for example, a parallax amount corresponding to a settable parallax amount adjustment range, that is, an object at a distance corresponding to infinity on the back side of the screen from the image on which the object is displayed on the near side of the screen. A plurality of images in which the parallax continuously changes are recorded up to the image on which is displayed, and an image having a specific parallax can be obtained by reading the specific image. In the recorded converted image, the part where the parallax is changed is a part of the image.

As a second step, the parallax adjustment unit 101 performs a process of displaying the converted image for 0.3 seconds or more. At this time, the converted image continuously displays from the converted image having the parallax before the parallax adjustment to the converted image having the parallax after the parallax adjustment, and the parallax continuously before and after the parallax adjustment. Processing to connect with the changing image is performed (steps S13 and S14). In this case, it is more preferable that the part where the parallax changes is selected in association with the characteristic part of the stereoscopic image. Specifically, the characteristic part may be a point that is likely to attract attention in the stereoscopic image.

As a third step, the parallax adjustment unit 101 performs a fade process of converting an image from a converted image corresponding to the parallax after parallax adjustment to a stereoscopic image after parallax adjustment (step S15). Thereby, the process ends (step S16: end).

Through the above three steps, the parallax adjustment unit 101 once sets the observer's state of convergence and adjustment to an intended state, and presents the observer with a screen on which the parallax adjustment has been performed gradually. Here, since the region where the amount of parallax changes is part of the converted image in which the parallax adjustment is gradually performed, the observer feels that the object is not moving but the object is facing him Get. Thereby, the observer can perform the parallax adjustment without feeling a sense of incongruity in which the parallax is suddenly adjusted or a sense of movement accompanying the parallax being gradually adjusted.

In the above example, the converted image is a plurality of images having continuous parallax. However, when a similar image can be obtained by the parallax adjustment processing or the stereoscopic image synthesis processing, the image obtained by such processing is used. May be. In addition, the region where the parallax changes is a part of the image, but the part of the region may be a region having a size that does not allow the observer to feel a sense of movement. In addition, the parallax of the stereoscopic image is obtained, and a converted image having a parallax corresponding to the parallax before and after the parallax adjustment is displayed, or the gaze point of the stereoscopic image is estimated, and the converted image corresponding to the parallax change of the place is the same It is even better to display it on the place. In this case, the parallax of the stereoscopic image is obtained from the left and right images, and there are several known methods for obtaining the parallax, such as block matching.

<Third Embodiment>
The stereoscopic image display device according to the third embodiment of the present invention will be described below. In the third embodiment, only the content of the parallax adjustment step in the first embodiment is different from the content of the first embodiment. Other hardware configurations and user interface implementation methods are the same as those described in the first embodiment, and detailed description thereof is omitted. FIG. 8 is a flowchart showing a flow of parallax amount adjustment processing in the present embodiment, and FIG. 9 is a view showing a display example along the flow of processing.

1 receives the instruction to start parallax adjustment, and performs parallax adjustment according to the following three steps.

When the process is started (FIG. 8, step S21), as a first step, the parallax adjustment unit 101 superimposes and displays a mask pattern prepared in advance on the current display (FIG. 8: step S22, FIG. 9: (A)-(b)). Here, the mask pattern is an image that blocks a partial region R1 of the image, and in the present embodiment, a pattern like a window that transmits only a partial region R2 of the image is adopted. The mask pattern may be translucent, but it is desirable that the mask pattern has a pattern and can guide the line of sight to the pattern itself. Here, it is possible to guide the line of sight to the letters “Adjusting”. By guiding the line of sight to the pattern itself, the vergence of the observer can be changed in accordance with the parallax of the pattern. It is preferable to display the mask pattern by performing a process of gradually shielding the mask pattern itself without moving it.

As a second step, the parallax adjustment unit 101 performs a process of displaying the mask pattern for 0.3 seconds or longer (step S23 in FIG. 8, (c) to (d) in FIG. 9). During this time, the parallax adjustment unit 101 performs parallax adjustment on the input stereoscopic image in a stepwise manner (step S24 in FIG. 8, (c) to (d) in FIG. 9). That is, it is observed that the parallax of the input stereoscopic image gradually changes from the transmission region R2 of the mask pattern. In FIG. 9D, the slide bar is slid from the back side to the near side.

As a third step, the parallax adjustment unit 101 performs display processing for removing the mask pattern (step S25 in FIG. 8, (e) to (f) in FIG. 9). It is preferable to perform a process of removing the mask pattern gradually by crossfade without moving the mask pattern itself.

In the above three steps, the parallax adjustment unit 101 continuously changes the state of congestion and adjustment of the observer while performing parallax adjustment gradually. Here, since the region that can be observed in the image on which the parallax adjustment is gradually performed is a part of the image, the observer feels not to be moving but to observe the moving object from the window. Thereby, the observer can perform the parallax adjustment without feeling a sense of incongruity in which the parallax is suddenly adjusted or a sense of movement accompanying the parallax being gradually adjusted.

Although the transmission area of the mask pattern is a part of the image, the size of the area may be a size that does not allow the observer to feel a sense of movement.

<Fourth Embodiment>
In the fourth embodiment of the present invention, stereoscopic image processing is performed using a personal computer (PC), and stereoscopic display is performed using a display device capable of stereoscopic display. On the PC, a user performs a stereoscopic image process by operating a GUI application using an operation device of the PC, such as a mouse, a keyboard, or a touch panel. That is, a CPU provided in the PC processes a moving image or a still image according to stereoscopic display application software recorded on a storage device, for example, a hard disk or a CD-ROM, and performs stereoscopic display on the stereoscopic display device.

FIG. 10 is a diagram for explaining a display screen of the stereoscopic display device according to the fourth embodiment. The stereoscopic display device 210 is provided with a display unit 203, and the display unit 203 displays an image display 203a and a GUI display unit 203b. On the GUI display unit 203b, an operation unit 205 for playing, stopping, rewinding, fast-forwarding, a depth adjustment tab 211, and a slide bar 215 are displayed. A screen by a stereoscopic image display application is displayed on the image display unit 203a. The user can process a stereoscopic image by operating the setting buttons 211a to 211e and the slide bar 215 on the GUI display unit using an operation device such as a mouse or a keyboard. Here, when performing parallax adjustment, display is performed according to any of the procedures in the above embodiments.

In the above-described embodiment, the configuration illustrated in the accompanying drawings is not limited to these, and can be appropriately changed within a range in which the effect of the present invention is exhibited. In addition, various modifications can be made without departing from the scope of the object of the present invention.

In addition, a program for realizing the functions described in the present embodiment is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into a computer system and executed to execute processing of each unit. May be performed. The “computer system” here includes an OS and hardware such as peripheral devices.

In addition, the “computer system” includes a homepage providing environment (or display environment) if a WWW system is used.

Further, the “computer-readable recording medium” means a storage device such as a flexible disk, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Furthermore, the “computer-readable recording medium” dynamically holds a program for a short time like a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line. In this case, a volatile memory in a computer system serving as a server or a client in that case, and a program that holds a program for a certain period of time are also included. The program may be a program for realizing a part of the above-described functions, or may be a program that can realize the above-described functions in combination with a program already recorded in a computer system.

The present invention can be used for 3D television receivers and the like.

DESCRIPTION OF SYMBOLS 10 Input part 100 Stereo image processing part 101 Parallax adjustment part 102 Display control part 103 Display part 104 System control part 105 User input part 106 Glasses synchronization part 107 Shutter glasses 1011 Left eye image shift process part 1012 Right eye image shift process part 1013 Left eye Image conversion processing unit 1014 Right-eye image conversion processing unit 1015 Conversion image recording unit 1016 Communication / control unit All publications, patents and patent applications cited in this specification are incorporated herein by reference in their entirety.

Claims (15)

1. A stereoscopic image display device that enables stereoscopic viewing by displaying a stereoscopic image including a right-eye image and a left-eye image, and presenting the right-eye image to the right eye and the left-eye image to the left eye. And
   An input unit for inputting parallax amount adjustment information for changing the parallax amount of the stereoscopic image data including the right-eye image and the left-eye image;
   A parallax adjustment unit that adjusts the parallax by applying a process based on the parallax amount adjustment information to at least one of the right-eye image and the left-eye image that constitutes the stereoscopic image data;
   A display unit that presents the right-eye image and the left-eye image of the stereoscopic image data to the right eye and the left eye, respectively, and displays a stereoscopic image;
   When the parallax adjustment unit adjusts the parallax amount of the stereoscopic image data based on the parallax amount adjustment information input from the input unit, between the display image before adjustment and the display image after adjustment. A stereoscopic image display apparatus comprising: an image conversion processing unit that displays another image different from the image whose parallax amount is currently being adjusted.
2. The stereoscopic image display device according to claim 1, wherein the other image is displayed so as to partially cover the image.
3. The stereoscopic image display device according to claim 1 or 2, wherein the image conversion processing unit displays an image having a uniform parallax as the another image.
4. The said image conversion process part displays the image which has the parallax of the value between the parallax of the image before adjustment, and the parallax of the image after adjustment as said another image, It is characterized by the above-mentioned. Stereoscopic image display device.
5. 3. The stereoscopic image display device according to claim 1, wherein the image conversion processing unit displays a plurality of images whose parallax is continuously changed as the another image.
6. The stereoscopic image display device according to claim 5, wherein, in the another image composed of a plurality of images whose parallax is continuously changed, a portion where the parallax is changed is a part of the screen.
7. Of the another image composed of a plurality of images whose parallax is continuously changed, a portion where the parallax is changed is determined based on a characteristic portion of the stereoscopic image data. The stereoscopic image display device according to claim 6.
8. The another image including a plurality of images whose parallax is continuously changed is selected so that the parallax is continuously changed from the parallax of the image before adjustment to the parallax of the image after adjustment. The stereoscopic image display device according to claim 5.
9. The stereoscopic image display device according to any one of claims 1 to 8, wherein the time for displaying the another image is a time based on the degree of influence on a living body.
10. Crossfade processing is performed on at least one of the display screen at the time of conversion from the display screen before the adjustment to the other image and the conversion from the other image to the image after the adjustment. The stereoscopic image display device according to claim 1, wherein the stereoscopic image display device is a feature.
11. A wipe process is performed on at least one of the display screen at the time of conversion from the display screen before the adjustment to the other image and the conversion from the other image to the image after the adjustment. The three-dimensional image display device according to any one of claims 1 to 9.
12. A stereoscopic image display method that enables stereoscopic viewing by displaying a stereoscopic image including a right-eye image and a left-eye image, and presenting the right-eye image to the right eye and the left-eye image to the left eye. And
    Inputting parallax amount adjustment information for changing the parallax amount of the stereoscopic image data composed of the right-eye image and the left-eye image;
    A parallax adjustment step of adjusting the parallax by applying processing based on the parallax amount adjustment information to at least one of the right-eye image and the left-eye image constituting the stereoscopic image data;
    Displaying the right-eye image and the left-eye image of the stereoscopic image data to the right eye and the left eye, respectively, and displaying a stereoscopic image, and
    In the parallax adjustment step, when adjusting the parallax amount of the stereoscopic image data based on the parallax amount adjustment information input in the input step, display of the display image before adjustment and the display image after adjustment is displayed. A stereoscopic image display method characterized by comprising a step of displaying another image different from the image whose parallax amount is currently being adjusted.
13. The step of displaying another image different from the image whose parallax amount is currently being adjusted in the parallax adjustment step includes a step of covering a part of the image. 3D image display method.
14. A program for causing a computer to execute the stereoscopic image display method according to claim 12 or 13.
15. A computer-readable recording medium for recording the program according to claim 14.

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