JP5521991B2 - Stereoscopic image display device - Google Patents

Description

  The present invention relates to a stereoscopic image display apparatus that inputs a pair of images forming a stereoscopic video and corrects and displays the pair of images.

  In recent years, many stereoscopic image display techniques using binocular parallax have been proposed as an image display technique for an observer to obtain a stereoscopic effect in a pseudo manner. This is a technique for inducing a sense of depth in a pseudo manner by showing an image viewed with the left eye and an image viewed with the right eye to the left and right eyes of an observer, respectively.

  As a technique for showing different images to the left and right eyes of the observer, the left eye image and the right eye image are alternately switched in time and displayed on the display, and at the same time, the left and right fields of view are synchronized with the timing of the image switching. The left eye can be separated into the left and right eyes by separating the left and right fields of view temporally using glasses, or by using a barrier or lens that limits the display angle of the image displayed on the front of the display. Various schemes have been proposed, such as a scheme for displaying a commercial image and a right-eye image.

  In a stereoscopic image display device using such a method, the focus is adjusted to the display surface while adjusting the convergence angle of the eye to the point where the object being watched by the observer jumps out (the point where the image is formed). There is a problem that eye strain is induced if the amount of protrusion is too large due to the mismatch between the convergence and the adjustment. In addition, a suitable parallax that makes it easy for the observer to obtain a fusion in which two images look like one differs depending on the distance between the observer and the display surface of the display and individual differences in the visual acuity of the observer. As a result, there is a problem that fusion is difficult to obtain due to a difference in conditions and induces eye fatigue.

  For the problem that induces fatigue of the eyes, use when the stereoscopic image displayed based on multiple viewpoint images corresponding to different parallax is displayed and the user feels the stereoscopic effect By acquiring the response from the user, or by specifying the parallax data for each user based on the response result, the user's age, whether the car is likely to get drunk, etc. Discloses a method for acquiring a plurality of viewpoint images corresponding to different parallaxes from stereoscopic image data based on the parallax amount data. (For example, refer to Patent Document 1).

Japanese Unexamined Patent Publication No. 2004-289527 (page 3, FIGS. 4-5)

  However, when viewing an image in which the amount of parallax changes abruptly, such as a scene change, there is a difference depending on whether the user can obtain a stereoscopic view in response to the change. In this way, in order to view a video including an image in which the amount of parallax changes rapidly, a response result from the user when a stereoscopic effect that the user himself prefers by the method disclosed in Patent Document 1, The parallax amount data specified from the response result of the inquiry such as the age of the user and whether the car is likely to get drunk is insufficient to adjust the parallax to be suitable for the user.

  The present invention has been made in order to solve the above-described problems, and individual observer parallax characteristic data that can adjust a stereoscopic image including an image in which the parallax amount changes rapidly to a parallax amount suitable for the observer. It is an object to obtain a stereoscopic image display device that adjusts the parallax of an input stereoscopic video based on the above.

  The stereoscopic image display device according to the present invention is configured to measure a parallax measurement unit that measures a parallax characteristic of an observer using a parallax amount evaluation image, a measurement result of the parallax measurement unit for each observer, an observer condition, and a measurement A parallax characteristic data storage unit that stores parallax characteristic data including environmental conditions, a parallax adjustment amount condition setting unit that sets a parallax adjustment amount condition based on the observer's parallax characteristic data, and an input stereoscopic video An image parallax calculation unit that calculates an image parallax amount, a parallax change amount calculation unit that calculates a parallax change amount between frames based on the image parallax amount calculated by the image parallax calculation unit, the parallax adjustment amount condition, The parallax adjustment amount calculation unit that calculates the parallax adjustment amount from the parallax change amount, the image generation unit that adjusts the parallax of the stereoscopic video input based on the parallax adjustment amount, and the video adjusted by the image generation unit Table to display And a section, the parallax measuring unit is obtained to have a fusion initiation parallax evaluation unit for evaluating the fusion start disparity of the observer and the separation start disparity evaluation unit for evaluating the separation start disparity of the observer.

  The present invention adjusts the parallax of the input stereoscopic video based on the parallax characteristic data including the parallax characteristic for each observer, the observer condition, and the environmental condition, thereby making the parallax change amount more suitable for the observer. The adjusted image can be provided to the observer.

It is a block diagram which shows the three-dimensional image display apparatus which concerns on Embodiment 1 of this invention. It is a figure which shows the positional relationship of an image and eyes when it jumps out before the screen. It is a figure which shows the positional relationship between an image and eyes when drawing in the back of a screen. It is a figure which shows a fusion start parallax measurement. It is a figure which shows a fusion start parallax distribution and cumulative frequency ratio. It is a figure which shows a separation start parallax measurement. It is a figure which shows a separation start parallax distribution and cumulative frequency ratio. It is a figure which shows the example of the image of the fusion limit evaluation which concerns on Embodiment 1 of this invention. It is a figure which shows the example of the image of the separation limit evaluation which concerns on Embodiment 1 of this invention. It is a figure which shows the example of the image of fusion separation time evaluation which concerns on Embodiment 1 of this invention. It is a figure which shows the relationship between a fusion start range and a separation observation range. It is a figure which shows the suitable parallax range in an image. It is a figure which shows the relationship between a fusion start range and a separation observation range. It is a block diagram which shows the three-dimensional image display apparatus which concerns on Embodiment 2 of this invention.

Embodiment 1
First, the outline of the stereoscopic image display apparatus according to Embodiment 1 of the present invention will be described. FIG. 1 is a block diagram showing a stereoscopic image display apparatus according to Embodiment 1 of the present invention. In the stereoscopic image display apparatus according to Embodiment 1 of the present invention, the image parallax calculation unit 1 calculates the image parallax amount from the input stereoscopic video. Here, the input stereoscopic video is a video source input from a broadcast or a video playback device. Further, the image parallax amount can be obtained from the shift amount of the pixel at the same point in the left-eye image and the right-eye image of the three-dimensional object.

  The parallax change amount calculation unit 2 calculates the change amount of the image parallax amount between frames, and the parallax adjustment amount calculation unit 3 is supplied with the calculation result of the parallax change amount calculation unit 2 from the parallax adjustment amount condition setting unit 4. The parallax adjustment amount is calculated based on the parallax adjustment amount condition of the observer. The image generation unit 20 generates an image of the input stereoscopic video based on the parallax adjustment amount calculated by the parallax adjustment amount calculation unit 3, and the display unit 100 displays the image generated by the image generation unit 20. .

  The parallax amount evaluation image storage unit 8 stores an evaluation image used when measuring the fusion start parallax and the separation start parallax as the parallax characteristics of the observer. The preferred parallax amount evaluation image storage unit 9 stores an evaluation image used when measuring the fusion separation time as the parallax characteristic of the observer. The parallax measuring unit 10 selects an evaluation image from the parallax amount evaluation image storage unit 8 and the preferred parallax amount evaluation image storage unit 9 according to the measurement item of the observer, and displays the evaluation image to the observer through the display unit 100. The user operation unit 14 serves as an input unit used when the observer observes and responds to the evaluation image displayed on the display unit 100 during measurement. In response to the response result, the parallax measurement unit 10 stores the parallax characteristics of the observer who is the person under test in the parallax characteristic data storage unit 5.

  The observer condition input unit 6 receives information about the observer such as age, sex, astigmatism and astigmatism input from the user operation unit 14, and information on the observer such as whether to remove corrective glasses when watching TV. Store in the storage unit 5. At this time, the contents of these questions can be displayed on the display unit 100 so that the observer can input the information easily. Further, not only information related to the observer, but also the peripheral test environment such as the brightness and the observation distance when performing the parallax measurement test, and the peripheral test environment such as the brightness and the observation distance when viewing the user operation unit 14 Is stored in the parallax characteristic data storage unit 5.

  The parallax characteristic data storage unit 5 stores the parallax characteristics of a plurality of observers, information about the observers, the test environment, and the viewing environment, and the user selection unit 7 selects the parallax characteristic data about the observers to be observed from now on. The parallax characteristic data, the test environment, and the test environment of the observer to be supplied are supplied to the parallax adjustment amount condition setting unit 4. Here, when storing the parallax characteristic data, the user selection unit 7 displays on the display unit 100 a user number or a mark symbol determined in advance so as to be associated with the observer, and uses the user operation unit 14 for the observer. By inputting, the associated parallax characteristic data can be determined.

  The parallax adjustment amount condition setting unit 4 sets the parallax adjustment amount condition based on the data supplied from the parallax characteristic data storage unit 5. Accordingly, it is possible to adjust and display the input stereoscopic video using the parallax adjustment amount condition set according to the characteristics of the observer and the viewing environment.

  Next, stereoscopic viewing using stereoscopic video will be described. FIG. 2 shows the relationship between the image for the left eye and the image for the right eye displayed on the display, and the eyes of the observer observing at an observation distance Z away from the display. As shown in FIG. 2, the angle of the intersection between a straight line connecting the position of the left eye of the observer from the point of the image for the left eye and a straight line connecting the position of the right eye of the observer to the point of the image for the left eye Is the convergence angle α. Further, when the convergence angle when the eyes of both eyes intersect when viewing one point on the display surface with both eyes is β, and the convergence angle α is larger than the convergence angle β, the intersection is the display surface. When the observer obtains the fusion, the display object (hereinafter referred to as an object) appears to jump out of the display. The distance from the display surface to the intersection at this time is called the pop-out amount, and the parallax angle is α−β.

  FIG. 3 shows the relationship between the image for the left eye and the image for the right eye displayed on the display as in FIG. 2 and the eyes of the observer observing at an observation distance Z away from the display. In this way, when the convergence angle α is smaller than the convergence angle β, the intersection point exists behind the display surface for the observer, and when the observer obtains the fusion, the object is drawn from the display. Looks like. The distance from the display surface to the intersection at this time is called the pull-in amount, and the parallax angle is β-α.

  Thus, the amount of pop-up when viewing a stereoscopic image and a stereoscopic view is greatly related to the amount of image parallax, the observation distance, and the distance between the eyes of the observer.

  Here, a test result indicating that it is difficult to accurately measure a test video or an image when the observer himself selects a suitable parallax amount as in the cited document 1 is shown. FIG. 4 shows that the image parallax amount gradually decreases from the left-eye image and the right-eye image in which the image parallax amount is sufficiently increased so that the convergence angle α is sufficiently large with respect to the convergence angle β. An example of an evaluation image to be displayed and evaluated is shown.

  FIG. 5 shows the results of an evaluation test in which an observer feels that the observer has fused using the evaluation image as shown in FIG. 4 and the subjects are 36 men and women from their 20s to 60s. Indicates the parallax angle (the difference between the convergence angle α at the time of fusion and the convergence angle β on the screen), and the vertical axis represents the number of persons whose fusion angle is the fusion start point. The observation conditions for this measurement are: a stereoscopic television used as a display is a 55-inch liquid crystal stereoscopic image display device, the observation distance is three times the screen height (205 [cm]), and the eye interval is an average value. It is set to 6.5 [cm]. The result of FIG. 5 indicates that the parallax angle is large in the vicinity of 4 [deg].

  FIG. 6 shows that the image parallax amount is gradually increased from the left-eye image and the right-eye image in which the image parallax amount is reduced so that the convergence angle α is sufficiently small with respect to the convergence angle β. The example of the evaluation image displayed and evaluated is shown. FIG. 7 is a result when an evaluation test in which the observer feels that the fusion has separated using the evaluation image as shown in FIG. 6 is performed by the same test subject as the test subject of FIG. The horizontal axis indicates the parallax angle, and the vertical axis indicates the frequency. From this result, it is shown that the parallax angle to be separated is 11.5 [deg] or more for most subjects under the observation conditions in which this experiment was performed.

  From these results of FIGS. 5 and 7, it can be seen that the parallax limit at the parallax limit in which the left and right images are merged and the stereoscopic image changes depending on the initial condition and change direction of the parallax amount of the presented left and right images. Similarly, the fusion limit of images to be merged at the back of the screen also changes the amount of parallax at the start of fusion and separation according to the initial conditions of the presented left and right images and the change direction of the parallax.

  FIG. 8 shows the relationship between the fusion start position created by the fusion start parallax obtained from the above test results and the separation start position created by the separated observation parallax. Thus, the fusion start position is inside the separation start position. This is because, with respect to an image whose parallax changes from the larger one, the observer cannot obtain the fusion because it is not within the fusion start parallax range even in the separation start parallax range.

  In other words, from the viewpoint of actual video, it is desirable that the limit value for instantaneous 3D display, such as when changing scenes or switching from 2D to 3D display, is within the range indicated by the fusion start parallax.

  In addition, the separation start parallax is a limit value when the object gradually draws far away or jumps out near when viewing the three-dimensional display, and if it exceeds this, a stereoscopic view is obtained over time. It is possible to continue providing stereoscopic vision to the observer by setting it as the maximum limit value that cannot be achieved.

  Next, a method for responding a suitable parallax to the observer using a display object with different parallax in one stereoscopic image will be described. Even in such a test, it is difficult to select a position suitable for the observer because the images are difficult to separate after the observer has obtained stereoscopic vision in all the display objects.

  In other words, the parallax amount that the subject can obtain stereoscopic vision by displaying the parallax amount evaluation image that increases the image parallax amount in the direction of separating from the fused state may include a larger parallax amount than the fusion start parallax. For this reason, even if the parallax amount is adjusted, the parallax amount cannot be stereoscopically obtained in another different video.

  Further, in this case, it is possible to determine the ease of viewing the image by measuring the fusion separation time indicating the time when fusion is obtained from a plurality of objects having different parallaxes in the screen. If it takes a long time to see a plurality of observation points on the screen, the image will change before it looks stereoscopic in the moving image even if the fusion is obtained in the still image.

  FIG. 9 is a diagram illustrating an example of a preferable range in the image obtained from the fusion separation time evaluation. FIG. 9A shows a measurement result of the preferable range in the screen by the subject a, and measurement of the preferable range in the screen by the subject b. A result is shown as FIG.9 (b). Here, the preferable range in the screen indicates the range of the pop-out amount and the pull-in amount that the observer responds as preferable. Thus, depending on the observer, the preferred range in the screen may not be related to the fusion position and the separation position. Therefore, when obtaining the preferred range within the screen for the observer, it may be obtained regardless of the fusion position and the separation position. desirable.

  Based on these facts, the measurement of the parallax characteristic in the parallax measurement unit 10 according to the embodiment of the present invention will be described. FIG. 10 shows an example of an evaluation image stored in the parallax amount evaluation image storage unit 8 when used in the fusion start parallax evaluation unit 11 that measures the fusion start parallax as individual parallax characteristics of the observer. The evaluation image is displayed so as to reduce the image parallax amount at a predetermined speed as shown in FIG. 10B from the display condition where the image parallax amount is very large as shown in FIG. When the displayed image is observed and the images are merged into one, the parallax measurement unit 10 is informed through the user operation unit 14 that the images have been merged into one. The start parallax evaluation unit 11 stores the fusion start parallax of the observer in the parallax characteristic data storage unit 5 as the image parallax amount at that time. For example, input is performed by operating a button at a position fused by a remote controller. By performing this measurement using the evaluation image as shown in FIG. 10, it is possible to determine the pop-out condition for the observer's start of fusion.

  In FIG. 10, the evaluation image for measuring the fusion start parallax on the pop-out side is shown, but by using the pull-in evaluation image in which the positional relationship between the left eye image and the right eye image of the evaluation image is changed, It is possible to measure the fusion start parallax on the drawing side.

  By performing these measurements, the observation conditions for the observer to measure, the pop-up conditions for starting the fusion of the observer, and the pull-in conditions are determined. When the amount of parallax exceeds this range, it takes time for the observer to obtain a stereoscopic view in the case of a sudden parallax change. Specifically, it is used as a limit value condition at the time of scene change or activation. When the maximum parallax amount or the average parallax amount obtained by the image parallax calculation unit exceeds this fusion start parallax, by reducing the maximum parallax amount, or by performing processing to reduce the total parallax amount accordingly, When viewing an image with a sudden parallax change, it is possible to prevent the observer from obtaining stereoscopic vision or being displayed with an excessive parallax so that the observer feels tired.

  FIG. 11 shows an example of an evaluation image stored in the parallax amount evaluation image storage unit 8 when used in the separation start parallax evaluation unit 12 that measures the separation start parallax as individual parallax characteristics of the observer. The evaluation image is displayed so as to increase the image parallax amount at a predetermined speed as shown in FIG. 11B from the display condition where there is no image parallax amount as shown in FIG. The separation start parallax evaluation unit is notified by notifying the parallax measurement unit 10 that the image has been separated and viewed via the user operation unit 14 when the merged image is observed by observing the obtained image. 12 stores the separation start parallax of the observer in the parallax characteristic data storage unit 5 as the image parallax amount at that time. For example, input is performed by operating a button at a position fused by a remote controller. By performing this measurement using the evaluation image as shown in FIG. 11, the amount of pop-up parallax, which is the fusion limit value, can be determined after the observer obtains a stereoscopic view.

  In FIG. 11, the evaluation image for measuring the separation start parallax on the pop-out side is shown, but by using the pull-in evaluation image in which the positional relationship between the left-eye image and the right-eye image of the evaluation image is changed, It is possible to measure the separation start parallax on the pull-in side.

  By performing these measurements, the observation conditions under which the observer performs measurements and the observer's stereoscopic vision are obtained. The maximum amount of parallax that becomes the individual separation limit can be determined. When the maximum amount of parallax obtained by the image parallax calculation unit exceeds this, since the stereoscopic view is not obtained where the parallax amount is exceeded, the amount of parallax change is stopped, the amount of parallax is limited, By performing a process of reducing the total amount of parallax in accordance with the maximum amount of parallax, it is possible to prevent the viewer from being displayed with an unreasonable parallax at which the viewer cannot obtain a stereoscopic view.

  At this time, by obtaining the relationship between the time and the amount of change in parallax, it is possible to obtain the limit value of parallax with respect to the time change amount of pop-out and the time change amount of pull-in.

  Specifically, images with progressively larger amounts of pop-out and pull-in, such as sticks popping out of the screen little by little, or panning with a fixed camera orientation or gradually moving away from the subject. It is effective, and it is possible to prevent the pop-out amount and the pull-in amount from becoming too large at the limit of eye congestion. A parallax limit value corresponding to the speed of pop-out and the speed of pull-in at this time can also be used.

  Here, the parallax amount evaluation image storage unit 8 stores a plurality of types of evaluation images used when measuring the fusion start parallax and the separation start parallax, and the evaluation is performed by the observer by using a different evaluation image each time measurement is performed. You can reduce your familiarity with images.

  FIG. 12 shows an example of an evaluation image stored in the suitable parallax amount evaluation image storage unit 9 when used in the fusion separation time evaluation unit 13 that measures the fusion separation time as the individual parallax characteristics of the observer. The evaluation image displays a plurality of objects as shown in FIG. 12A, and the time when the plurality of objects can be recognized as a three-dimensional object after the image is displayed is measured by an operation with a remote controller.

  The parallax characteristic data storage unit 5 stores the parallax amount information (the maximum pop-out amount, the maximum pull-in amount, the difference between the pop-out amount and the pull-in amount, etc.) of the image. Specifically, after the image is presented, images with different parallax are observed at a plurality of locations in the screen, and when stereoscopic vision is obtained, the obtained time is measured by remote control operation or the like. Here, although there are two objects in FIG. 12A, it is desirable to have a plurality of objects because it is easier to quantify.

  For example, with respect to the parallax range (parallax amount = pop-out parallax + pull-in parallax), images of parallax ranges in a plurality of stages with different conditions are presented, and a stereoscopic view is obtained in each parallax range by the remote controller operation by the observer Measure time. As shown in FIG. 13, the relationship between the parallax range (parallax amount) and the fusion separation time increases as the parallax amount increases. By obtaining this graph by this measurement, a suitable range in one image can be obtained.

  In addition, as a method of presenting an image for measuring the fusion separation time, as shown in FIG. 12B, an image for switching frames by time may be displayed. The time when the fusion of these images is obtained may be counted by the number of frames.

  This makes it possible to determine the optimum value of the parallax range within a single image, the difference between the maximum pop-up amount and the maximum pull-in amount, the average pop-out amount and the maximum pull-in amount, the maximum pop-out amount and the average pull-in amount, and the average pop-out amount. The range of parallax within a set of stereoscopic images, such as the difference in the average pull-in amount and the like, can be determined.

  Next, in the stereoscopic image display apparatus according to Embodiment 1 of the present invention, a detailed operation until the input stereoscopic image is adjusted according to the characteristics of each observer and displayed from the display unit 100 will be described. In the image parallax calculation unit 1, as the image parallax amount from the left and right images, the maximum pop-out amount Fmax, the minimum pop-out amount Fmin, the average pop-out amount Fave, the maximum pull-in amount Rmax, the minimum pull-in amount Rmin, and the average pull-in amount Rave and the overall average parallax amount Pave are calculated.

  The pop-out amount is a state in which the object for the right eye image is on the left eye side of the observer and the object for the left eye image is on the right eye side of the observer, and the maximum pop-out amount Fmax has a large pixel difference. The minimum pop-out amount Fmin has the smallest pixel difference.

  The pull-in amount is a state in which the object for the right eye image is on the right eye side of the observer and the object for the left eye image is on the left eye side of the observer, and the maximum pull-in amount Rmax has a large pixel difference. The minimum pull-in amount Rmin has the smallest pixel difference. However, the maximum pull-in amount also affects the distance between the eyes of the observer.

  Further, the pop-out amount and the pull-in amount may be values for each object or may be values when divided into specific areas on the screen. The overall average is an average value obtained from values for each object and each area. The minimum pop-out amount Fmin and the pop-out amount average Fave are used when the entire image is popping out. The minimum pull-in amount Rmin and average pull-in amount Rave are also used when the entire image is being pulled in.

  For each of these values, the parallax change amount calculation unit 2 calculates a difference for each frame, several frame intervals, or an average of a plurality of frames.

  In the parallax adjustment amount calculation unit 3, the parallax amount restriction conditions set in the parallax adjustment amount condition setting unit 4 (pop-out separation start parallax amount Lfs, pop-out fusion start parallax amount Lff, pull-in separation start parallax amount Lrs, pull-in separation start parallax amount The amount of parallax adjustment is calculated based on Lrf, fusion separation time Tfs).

  For example, the maximum pop-out amount Fmax is limited based on the pop-out separation start parallax amount Lfs. When Fmax exceeds Lfs, it is set to stop popping out. Similarly, the maximum value Rmax of the pull-in amount is limited based on the pull-in separation start parallax amount Lrs. This prevents jumping out and pulling in to a range where it is not completely fused.

  Further, as a limiting method, when the average pop-out amount Fave exceeds the pop-out fusion start parallax amount Lff, it is possible to control the pop-out amount and uniformly subtract a constant rate or a constant value. Further, when the average pull-in amount Rave exceeds the pull-in separation limit parallax amount Lrf, a constant ratio or a constant value is subtracted from the pull-in amount uniformly. These restrictions may use the entire average parallax amount Pave as a reference for restriction, for example, when the overall average parallax amount Pave is larger than the pop-out fusion limit parallax amount Lff or the pull-in separation limit parallax amount Lrf. It is good to provide.

  Thereby, it is possible to provide an easy parallax restriction process with only an average value.

  The limitations based on the pop-out separation start parallax amount Lfs and the pull-in separation start parallax amount Lrs are mainly used as limit values when a still image is viewed or when the pop-up separation start parallax amount Lrs is slowly popped out or pulled in from the screen in seconds.

  For example, the pop-out fusion start parallax amount Lff and the pull-in fusion start parallax amount Lrf are used as limits at the time of switching such as a scene change. In the parallax change amount calculation unit, when the change amount between frames of the maximum pop-out amount Fmax or the change amount between frames of the pop-out amount average Fave exceeds the pop-out fusion start parallax amount Lff, the maximum pull-in amount Rmax or A restriction is provided when the amount of change between frames of the average pull-in amount Rave exceeds the pull-in separation start parallax amount Lrf, and control is performed so that a sudden change amount does not occur.

  The fusion separation time Tfs is used as a preferred parallax setting index when viewing a stereoscopic video. From the above-described time measurement for obtaining stereoscopic vision, conditions for obtaining stereoscopic vision faster than a predetermined time are selected, and the maximum pop-out amount Fmax, maximum pull-in amount Rmax, and average pop-out amount Fave for each frame are selected according to the conditions. The average pull-in amount Rave and the overall average parallax amount Pave are limited so that they do not exceed a certain amount of parallax. For example, the absolute value of the difference between the maximum pop-out amount Fmax and the maximum pull-in amount Rmax or the absolute difference value between the maximum pop-out amount Fmax and the overall average parallax amount Pave is limited so as not to be larger than the preferred parallax setting. This fusion separation time may also be used for setting the parallax between frames.

  In this way, by measuring the observer's separation start parallax value, the fusion start parallax value, and the fusion separation time, and storing the observer's parallax characteristic data, it becomes possible to set suitable parallax data for the individual.

  Here, the user operation unit 14 that measures parallax uses a device that operates while viewing the screen from a normal observation position, such as a remote controller.

  The device for inputting the observer condition when measuring the parallax is preferably operated while viewing the screen from a normal observation position like a remote controller, but may be input using an input key provided on the television. .

  The observer condition is stored in the parallax characteristic data storage unit 5, and the parallax amount can be set to a suitable value by the user selecting his / her parallax condition by remote control operation or the like. In addition, by obtaining parallax characteristic data each time observation is performed, it is possible to optimize the parallax amount adjustment condition by storing a suitable change in parallax condition due to familiarity.

Embodiment 2. FIG.
In Embodiment 1, the parallax characteristic of the observer is measured by the parallax measurement unit of the stereoscopic image display apparatus and stored in the parallax characteristic data storage unit. However, in the stereoscopic image display apparatus according to the present embodiment, directly This is a stereoscopic image display device that stores information of measurement results in a parallax characteristic data storage unit.

  FIG. 14 is a block diagram showing a configuration of a stereoscopic image display apparatus according to Embodiment 2 of the present invention. In FIG. 14, the same reference numerals as those in FIG. 1 of the first embodiment correspond to the same reference numerals in the first embodiment, and the description thereof is omitted. The parallax characteristic data storage unit 50 inputs the parallax characteristic data of each observer via the observer condition input unit 60. The input of the observer is input using the user operation unit 14. Alternatively, even if the user operation unit 14 directly accesses and inputs the parallax characteristic data storage unit 50, an interface that can directly access the parallax characteristic data storage unit 50 may be provided and stored. The interface here refers to, for example, a USB or a memory card slot.

  Here, the individual parallax characteristic data of the observer includes the fusion start parallax, the separation start parallax, and the fusion separation time, and for example, information when separately measured by the stereoscopic image display device according to the first embodiment. Enter itself. Information obtained using another measuring device may be used. However, by storing information about the test environment at the time of measurement, the parallax characteristic can be adjusted in consideration of the environment at the time of the test, and thus the parallax amount suitable for the observer can be adjusted.

  It goes without saying that the intended purpose can be achieved.

DESCRIPTION OF SYMBOLS 1 Image parallax calculation part 2 Parallax change amount calculation part 3 Parallax adjustment amount calculation part 4 Parallax adjustment amount condition setting part 5 Parallax characteristic data storage part 6 Observer condition input part 7 User operation part 8 Parallax amount evaluation image storage part 9 Suitable parallax Quantity evaluation image storage unit 10 Parallax measurement unit 11 Fusion start parallax evaluation unit 12 Separation start parallax evaluation unit 13 Fusion separation time evaluation unit 14 User operation unit 20 Image generation unit 30 Display unit

Claims (4)

A parallax measurement unit that measures the parallax characteristics of the observer using the parallax evaluation image;
A parallax characteristic data storage unit that stores parallax characteristic data including measurement results of the parallax measurement unit for each observer, observer conditions, and environmental conditions being measured;
A parallax adjustment amount condition setting unit configured to set a parallax adjustment amount condition based on the parallax characteristic data of the observer;
An image parallax calculation unit for calculating an image parallax amount from the input stereoscopic video;
A parallax change amount calculation unit that calculates a parallax change amount between frames based on the image parallax amount calculated by the image parallax calculation unit;
A parallax adjustment amount calculation unit that calculates a parallax adjustment amount from the parallax adjustment amount condition and the parallax change amount;
An image generation unit that adjusts the parallax of a stereoscopic video input based on the parallax adjustment amount;
In a stereoscopic image display device comprising a display unit for displaying the video adjusted by the image generation unit ,
The parallax measurement unit observes an image displayed as the parallax amount evaluation image, and evaluates a separation start parallax evaluation unit that evaluates a separation start parallax that is an image parallax when the fused images are viewed separately . A fusion start parallax evaluation unit that observes an image displayed as the parallax amount evaluation image and evaluates a fusion start parallax, which is an image parallax when the images appear to be fused , a plurality of different parallax objects in the image A stereoscopic image display device comprising: a fusion separation time evaluation unit that measures a fusion separation time indicating a time when fusion is obtained from . The stereoscopic image display device according to claim 1, wherein the parallax measurement unit has a plurality of parallax amount evaluation images, and a parallax amount evaluation image different from the previous one is selected each time measurement is performed. The user selection part which selects the parallax characteristic data input into a parallax adjustment amount condition setting part from the several parallax characteristic data stored in the said parallax characteristic data storage part is provided, The Claim 1 or Claim 2 characterized by the above-mentioned. 3D image display device. Fusion from the separation start parallax, which is the image parallax when the fused image looks separate, and the fusion start parallax, which is the image parallax when the image looks fused, from multiple different parallax objects in the image A second parallax characteristic data storage unit for storing parallax characteristic information including a fusion separation time indicating a time when the image data is obtained , an observer condition, and parallax characteristic data including an environmental condition to be observed;
A parallax adjustment amount condition setting unit configured to set a parallax adjustment amount condition based on the parallax characteristic data of the observer;
An image parallax calculation unit for calculating an image parallax amount from the input stereoscopic video;
A parallax change amount calculation unit that calculates a parallax change amount between frames based on a calculation result of the image parallax calculation unit;
A parallax adjustment amount calculation unit that calculates a parallax adjustment amount from the parallax adjustment amount condition and the parallax change amount;
An image generation unit that adjusts the parallax of a stereoscopic video input based on the parallax adjustment amount;
A stereoscopic image display device comprising: a display unit that displays the video adjusted by the image generation unit.

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