JP2012060500A - Stereoscopic image viewing system and shutter glasses - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow synchronization with any of left and right images and prevent reverse viewing.SOLUTION: When a right-eye image and a left-eye image are alternately displayed in a display device 20, an identification image in which at least one of a color and texture is predetermined is displayed for a period tbefore the right-eye image is displayed and displayed for a period t(t≠t) before the left-eye image is displayed. In shutter glasses 40 comprising a right-eye liquid crystal shutter 44a and a left-eye liquid crystal shutter 44b, a display image is detected with a built-in camera 42, image recognition of the display image is performed to determine whether the display image is the identification image, and the current frame is determined to be the right-eye image when the display period of the identification image is t, or determined to be the left-eye image when the period is t. Then, according to the display period of the identification image and the display period of one frame, opening/closing timing of the right-eye liquid crystal shutter 44a and the left-eye liquid crystal shutter 44b corresponding to image display timing of the next frame is set.

Description

  The present invention relates to a stereoscopic image viewing system and shutter glasses.

  Conventionally, right-eye images and left-eye images are alternately displayed on the display device, and the right-eye shutter and the left-eye shutter are synchronized with the timing of switching between the right-eye image and the left-eye image displayed on the display device. A stereoscopic image is viewed by wearing shutter glasses for switching between and viewing an image displayed on a display device.

  Here, when the switching timing of the left and right images and the switching timing of the left and right shutter glasses are not synchronized, reverse viewing occurs in which the image to be projected to the left eye and the image to be projected to the right eye are reversed. Since reverse viewing causes visual fatigue and discomfort, a technique for synchronizing the switching timing of left and right images with the switching timing of left and right shutter glasses has been proposed.

  For example, by detecting a predetermined image frame displayed for each pair of left and right frames or more by a photosensor provided in the shutter glasses, the switching of the shutter glasses and the switching of the left and right images are synchronized. A viewing device has been proposed (see, for example, Patent Document 1).

  Further, a mark displayed at a predetermined position on the screen is sensed by a photo sensor, and based on the output signal of the photo sensor, in a period from the vertical synchronization signal immediately after the output signal to the next vertical synchronization signal. There has been proposed a stereoscopic video viewing spectacles control device that generates a control signal for stereoscopic video viewing glasses (see, for example, Patent Document 2).

  In addition, light emitted from the scanning lines in the display image on the display screen is received and converted into an electrical signal, the phase of the electrical signal is adjusted to adjust the switching timing of the left and right images, and the left and right light shielding of the observation glasses is performed. There has been proposed a shading control device for stereoscopic television for switching (see, for example, Patent Document 3).

JP 2007-507950 A JP-A-10-126815 Japanese Unexamined Patent Publication No. 63-60689

  However, in the technique of Patent Document 1, since a predetermined image frame is inserted for each pair of left and right frames or more than a pair of right eye images and left eye images, one of the shutter glasses is used. There is a problem that there is a possibility that the switching timing is not synchronized with the switching timing of the left and right images.

  Further, the technique of Patent Document 2 has a problem that a mark is displayed on an image for viewing, so that a part of the image is missing and is conspicuous.

  Further, the technique disclosed in Patent Document 3 has a problem in that reverse vision may occur because the right-eye image and the left-eye image cannot be distinguished.

  The present invention has been made to solve the above-described problem, and an object of the present invention is to provide a stereoscopic image viewing system and shutter glasses that can synchronize both the left and right images and prevent reverse viewing. And

  In order to achieve the above object, a stereoscopic image viewing system according to a first aspect of the present invention includes a display unit that alternately displays a right-eye image and a left-eye image, and the display unit has at least one of a color and a pattern. A predetermined identification image is displayed for a first predetermined period before the right-eye image is displayed, and is displayed for a second predetermined period different from the first predetermined period before the left-eye image is displayed. Display control means for controlling the display device, shutter glasses including a right eye shutter and a left eye shutter, a detection means for detecting an image displayed on the display means, and the detection means Recognize the detected image, determine whether the detected image is the image for identification, and if it is determined that the image is for identification, based on the display period of the identification image, The right eye shutter and Shutter glasses comprising: setting means for setting the opening / closing timing of the left-eye shutter; and driving means for driving opening / closing of the right-eye shutter and the left-eye shutter based on the opening / closing timing set by the setting means; , Including.

In the stereoscopic image viewing system of the first invention, in the display device, the right-eye image and the left-eye image are alternately displayed on the display means. Further, the display control means displays on the display means an identification image in which at least one of the color and the pattern is determined in advance for a first predetermined period before displaying the right-eye image, and before displaying the left-eye image. Control is performed so that a second predetermined period different from the first predetermined period is displayed.
In the shutter glasses including the right-eye shutter and the left-eye shutter, the detection unit detects the image displayed on the display unit, and the setting unit recognizes the image detected by the detection unit and detects the image. It is determined whether the image is an identification image. If it is determined that the image is an identification image, the opening / closing timings of the right-eye shutter and the left-eye shutter are set based on the display period of the identification image. The driving means drives opening and closing of the right-eye shutter and the left-eye shutter based on the opening / closing timing set by the setting means.

  In this way, in the display device, before displaying the right-eye image and the left-eye image, the identification image is displayed in different display periods, and in the shutter glasses, the right-eye image and the right-eye image are displayed based on the identification-image display period. Since the image for the left eye can be distinguished, the opening / closing timing of the shutter for the right eye and the shutter for the left eye can be set appropriately, and both the left and right images can be synchronized to prevent reverse viewing. it can.

  Further, in the first invention, the display control means may change the colors and patterns of the identification image displayed before the right-eye image is displayed and the identification image displayed before the left-eye image is displayed. And controlling so that at least one of them is displayed differently, and the setting means sets the opening / closing timing of the shutter for the right eye and the shutter for the left eye based on at least one of the display period of the identification image and the color and pattern. To be able to. Thereby, the image for right eyes and the image for left eyes can be distinguished more accurately.

  Further, in the first invention, the display control means can control such that at least one of the color and pattern of the identification image has a higher contrast than the right-eye image and the left-eye image. . Thereby, the image for identification can be detected more reliably.

  In the first aspect of the invention, the display control unit controls the identification image to be displayed so that a display period of the left-eye image and a display period of the right-eye image are the same. Can do. Thereby, the flicker of a display image can be suppressed.

  In the first invention, the display control means includes a first periodic image in which the identification image is displayed in a first period within the first predetermined period, and the second predetermined period. The display unit includes a second period image that is displayed in a second period different from the first period, and the setting unit is configured to display the identification image display period and the display period. The opening / closing timing of the right-eye shutter and the left-eye shutter can be set based on the above.

  The stereoscopic image viewing system according to the second aspect of the invention is a display means for alternately displaying a right-eye image and a left-eye image, and a right identification in which at least one of a color and a pattern is predetermined on the display means. A left identification image in which at least one of a color and a pattern different from the right identification image is predetermined is displayed before the left eye image is displayed. And a display device including display control means for controlling the display so as to be displayed for a predetermined period, and shutter glasses including a right-eye shutter and a left-eye shutter, wherein the detection means detects an image displayed on the display means. And recognizing the image detected by the detection means, determining whether the detected image is the right identification image or the left identification image, and using the right identification image or the left identification image If there The right-eye image and the left-eye image, and the right-eye shutter and the left-eye shutter are opened and closed based on a display period of the right-identification image or the left-identification image. And shutter glasses including setting means for setting timing, and driving means for driving opening and closing of the shutter for the right eye and the shutter for the left eye based on the opening / closing timing set by the setting means. ing.

  According to the stereoscopic image viewing system of the second invention, in the display device, the right eye image and the left eye image are alternately displayed on the display means. Further, the display control means displays a right identification image in which at least one of a color and a pattern is predetermined on the display means for a predetermined period before displaying the right eye image, and has a different color and pattern from the right identification image. Control is performed such that at least one of the left identification images is determined for a predetermined period before the left-eye image is displayed.

  In the shutter glasses including the right-eye shutter and the left-eye shutter, the detection unit detects the image displayed on the display unit, and the setting unit recognizes the image detected by the detection unit and detects the image. It is determined whether the image is a right identification image or a left identification image. If it is determined that the image is a right identification image or a left identification image, the right identification image or the left identification image; and Based on the display period of the right identification image or the left identification image, the opening / closing timings of the right eye shutter and the left eye shutter are set. The driving means drives opening and closing of the right-eye shutter and the left-eye shutter based on the opening / closing timing set by the setting means.

  As described above, in the display device, before the right-eye image and the left-eye image are displayed, different right-identification images or left-identification images are displayed. In the shutter glasses, at least one of the color and pattern of the identification image is displayed. Since the right eye image and the left eye image can be distinguished based on each other, the opening and closing timings of the right eye shutter and the left eye shutter can be set appropriately, and the left and right images can be synchronized, Backsight can be prevented.

  In the second aspect of the invention, the display control means has at least one of a color and a pattern of the right identification image and the left identification image having a higher contrast than the right eye image and the left eye image. Can be controlled. Thereby, the image for identification can be detected more reliably.

  In the second invention, the display control means includes a first period image in which the right identification image is displayed in a first period, and the left identification image is different from the first period. The first periodic image displayed at a cycle of 2 is controlled to be displayed, and the setting means displays at least one of the color and the pattern of the right identification image and the left identification image. The opening / closing timing of the right eye shutter and the left eye shutter can be set based on the period displayed in the cycle. Thereby, the right identification image and the left identification image can be detected with higher accuracy.

  The stereoscopic image viewing system according to a third aspect of the present invention is a display means for alternately displaying a right-eye image and a left-eye image, and the display means for identification in which at least one of a color and a pattern is predetermined. Display for controlling the image to be displayed in a first cycle during the display period of the right-eye image and to be displayed in a second cycle different from the first cycle during the display period of the left-eye image. A display device including a control unit; a shutter glasses including a right-eye shutter and a left-eye shutter; a detection unit that detects an image displayed on the display unit; and an image detected by the detection unit. Recognizing and determining whether or not at least one of the color and the pattern is a predetermined identification image, and if it is determined to be the identification image, the period of display of the identification image and the Time when the cycle changes Setting means for setting the opening / closing timings of the right-eye shutter and the left-eye shutter based on the switching, and driving the opening / closing of the right-eye shutter and the left-eye shutter based on the opening / closing timing set by the setting means And shutter glasses including the driving means.

  According to the stereoscopic image viewing system of the third invention, in the display device, the right eye image and the left eye image are alternately displayed on the display means. Further, the display control device displays, on the display means, an identification image in which at least one of a color and a pattern is determined in the first period during the display period of the right eye image, and during the display period of the left eye image. The display is controlled so as to be displayed in a second period different from the first period.

  In the shutter glasses including the right-eye shutter and the left-eye shutter, the detection unit detects the image displayed on the display unit, and the setting unit recognizes the image detected by the detection unit, so that the color and the pattern are detected. It is determined whether or not at least one of the images is a predetermined identification image, and if it is determined that the image is an identification image, based on the display period of the identification image and the timing at which the period is switched, The opening / closing timing of the right-eye shutter and the left-eye shutter is set. The driving means drives opening and closing of the right-eye shutter and the left-eye shutter based on the opening / closing timing set by the setting means.

  In this way, in the display device, during the display period of the image for the right eye and the image for the left eye, the identification image is displayed at different periods, and the shutter glasses are based on at least one of the color and the pattern of the identification image. Since the right-eye image and the left-eye image can be distinguished from each other, the opening / closing timings of the right-eye shutter and the left-eye shutter can be set appropriately. Can be prevented.

  In the third aspect of the invention, the display control means includes a color of the identification image displayed during the display period of the right eye image and a color of the identification image displayed during the display period of the left eye image. The setting means controls the right eye based on at least one of the color and pattern of the identification image, a display cycle, and a timing at which the cycle is switched. The opening / closing timing of the shutter and the left-eye shutter can be set. Thereby, the image for identification can be detected with higher accuracy.

  In the third aspect of the invention, the display control means can control so that at least one of the color and pattern of the identification image has a higher contrast than the right-eye image and the left-eye image. . Thereby, the image for identification can be detected more reliably.

  According to a fourth aspect of the present invention, there is provided shutter glasses having a right eye shutter and a left eye shutter, a detection means for detecting an image displayed on the display means, and an image detected by the detection means. Recognizing and determining whether at least one of the color and the pattern is a predetermined identification image, and if it is determined that the detected image is the identification image, the identification image is displayed. It is determined whether the period is a first predetermined period or a second predetermined period different from the first predetermined period, and the opening / closing timings of the right-eye shutter and the left-eye shutter based on the display period of the identification image And a drive unit that drives the opening and closing of the right-eye shutter and the left-eye shutter based on the opening / closing timing set by the setting unit. .

  According to a fifth aspect of the present invention, there is provided shutter glasses comprising a right-eye shutter and a left-eye shutter, the detection means for detecting an image displayed on the display means, and the image detected by the detection means. Recognized and detected image is a right identification image in which at least one of a color and a pattern is predetermined, or a left identification image in which at least one of a color and a pattern different from the right identification image is predetermined If the image is determined to be the right identification image or the left identification image, the right identification image or the left identification image, and the right identification image or the left identification image Based on the display period of the identification image, setting means for setting the opening / closing timing of the right-eye shutter and the left-eye shutter, and based on the opening / closing timing set by the setting means, Driving means for driving the opening and closing of the eye shutter and the left eye shutter is configured to include a.

  The shutter glasses of the sixth aspect of the invention are shutter glasses having a right eye shutter and a left eye shutter, a detection means for detecting an image displayed on the display means, and an image detected by the detection means. It is determined whether or not at least one of the color and the pattern is a predetermined identification image. If it is determined that the image is the identification image, the period in which the identification image is displayed is The right eye shutter and the left eye shutter are determined based on the period when the identification image is displayed and the timing at which the period is switched. Setting means for setting the opening / closing timing of the camera, and driving means for driving opening / closing of the shutter for the right eye and the shutter for the left eye based on the opening / closing timing set by the setting means, Is constituted comprise.

  As described above, according to the present invention, in the display device, before the right-eye image and the left-eye image are displayed, the identification images are displayed in different display periods, or different identification images are displayed. Alternatively, during the display period of the right-eye image and the left-eye image, the identification image is displayed with different periods, and the shutter glasses are used to detect the identification image and distinguish the right-eye image and the left-eye image. Therefore, the opening / closing timings of the right-eye shutter and the left-eye shutter can be set appropriately, and it is possible to synchronize both the left and right images and prevent reverse viewing. It is done.

It is a figure which shows the outline of the stereoscopic vision viewing-and-listening system concerning this Embodiment. It is a block diagram which shows schematic structure of the display apparatus of the stereoscopic vision viewing system which concerns on this Embodiment. It is a block diagram which shows schematic structure of the shutter glasses of the stereoscopic vision viewing system which concerns on this Embodiment. It is a flowchart which shows the content of the display process routine performed in the display apparatus control part of the stereoscopic vision viewing system of 1st Embodiment. It is a time chart of image display and shutter glasses switching in a 1st embodiment. It is a flowchart which shows the content of the shutter glasses switching timing setting processing routine performed in the shutter glasses control part of the stereoscopic vision viewing system of 1st Embodiment. It is a flowchart which shows the content of the display processing routine performed in the display apparatus control part of the stereoscopic vision viewing system of 2nd Embodiment. It is a time chart of the image display and shutter glasses switching in 2nd Embodiment. It is a flowchart which shows the content of the shutter glasses switching timing setting processing routine performed in the shutter glasses control part of the stereoscopic vision viewing system of 2nd Embodiment. It is a flowchart which shows the content of the display process routine performed in the display apparatus control part of the stereoscopic vision viewing system of 3rd Embodiment. It is a time chart of the image display in 4th Embodiment, and shutter glasses switching. It is a flowchart which shows the content of the display process routine performed in the display apparatus control part of the stereoscopic vision viewing system of 5th Embodiment. It is a time chart of image display and shutter glasses switching in a 5th embodiment. It is a flowchart which shows the content of the shutter glasses switching timing setting processing routine performed in the shutter glasses control part of the stereoscopic vision viewing system of 5th Embodiment. It is a flowchart which shows the content of the display process routine performed in the display apparatus control part of the stereoscopic vision viewing system of 6th Embodiment. It is a time chart of image display and shutter glasses switching in a 6th embodiment.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a diagram schematically illustrating a stereoscopic image viewing system 10 according to the first embodiment. As shown in the figure, the stereoscopic image viewing system 10 according to the first embodiment includes a display device 20 including a display 22 that displays a stereoscopic image, a built-in camera 42, and a right-eye liquid crystal. Shutter glasses 40 including a shutter 44a and a left-eye liquid crystal shutter 44b are provided. Further, the display device 20 is provided with a display device control unit 30, and the shutter glasses 40 are provided with a shutter glasses control unit 50 (see FIGS. 2 and 3).

  When viewing a stereoscopic image with the stereoscopic image viewing system 10 of the present embodiment, the right-eye image and the left-eye image are alternately displayed on the display device 20, and the right-eye image is displayed when the right-eye image is displayed. The liquid crystal shutter 44a is opened, the left eye liquid crystal shutter 44b is closed, and the left eye liquid crystal shutter 44b is opened and the right eye liquid crystal shutter 44a is closed when the left eye image is displayed. The Hereinafter, the right-eye image and the left-eye image are collectively referred to as a display image.

  FIG. 2 is a block diagram illustrating a schematic configuration of the display device 20 of the stereoscopic image viewing system 10 according to the first embodiment. The display device control unit 30 can be functionally represented by a configuration including an image acquisition unit 32, an identification image superimposing unit 34, and a display control unit 36.

  The image acquisition unit 32 acquires a right-eye image and a left-eye image alternately frame by frame by reading a moving image recorded on a recording medium (not shown) or downloading a moving image via a network. .

The identification image superimposing unit 34 superimposes the identification image for detecting the switching timing between the right eye image and the left eye image on the image acquired by the image acquisition unit 32. The identification image is a predetermined image in which at least one of a color and a pattern is determined, and can be, for example, an all black image in which the entire image is black. The identification image superimposing unit 34 displays the identification image for a predetermined period t ₁ from the start of the display of the right eye image and a predetermined period t ₂ (t ₂ ≠ t ₁ ) from the start of the display of the left eye image. In addition, the identification image is superimposed on each of the right-eye image and the left-eye image.

  The display control unit 36 controls the display 22 to display the right-eye image and the left-eye image on which the identification image is superimposed by the identification image superimposing unit 34.

  FIG. 3 is a block diagram illustrating a schematic configuration of the shutter glasses 40 of the stereoscopic image viewing system 10 according to the first embodiment. The shutter glasses control unit 50 can be functionally represented by a configuration including a timing setting unit 54 and a liquid crystal shutter drive unit 56.

The timing setting unit 54 captures a captured image captured by the built-in camera 42, detects a display image displayed on the display 22 from the captured image, and recognizes the display image, thereby at least the color and pattern of the display image. Whether or not the display image is an identification image is determined based on whether or not one is predetermined (for example, an all-black image). If the display image is determined to be a recognition image calculates a display period of the identifying image and the display period based on whether t ₁ or t _2, the frame is the right-eye image currently displayed Or left-eye image. Based on the determination result, the opening / closing switching timing of the right-eye liquid crystal shutter 44a and the left-eye liquid crystal shutter 44b is set in accordance with the image display timing of the next frame or subsequent frames.

  Next, a display processing routine executed in the display device control unit 30 of the stereoscopic image viewing system 10 according to the first embodiment will be described with reference to FIG. This routine starts when an operation switch (not shown) is operated to instruct display of a stereoscopic image (playback of a moving image). Here, a case where an all-black image is used as the identification image will be described.

  In step 100, a moving image recorded on a recording medium (not shown) or a first frame image of a moving image downloaded via a network is acquired. Next, in step 102, it is determined whether the first frame image acquired in step 100 is a right-eye image or a left-eye image. This determination can be made based on the header information of the moving image, or can be made based on a predetermined standard.

Next, in step 104, based on the determination result of step 102, after the display period t ₁ the total black image when the first frame is of the right-eye image, displaying the right eye image acquired in step 100 To do. Further, the first frame after the display period t ₂ all black image in the case of the left-eye image, and displays the left-eye image acquired in step 100. For example, when the display period of one frame is 1/120 second, 1/120 second-t ₁ is the display period of the right eye image, and 1/120 second-t ₂ is the display period of the left eye image.

  Next, in step 106, it is determined whether or not the next frame exists. If there is, the process proceeds to step 108 to acquire the image of the next frame. If the image acquired in step 100 is a right-eye image, a left-eye image is acquired in this step. On the other hand, if the image acquired in step 100 is a left-eye image, a right-eye image is acquired in this step.

Next, at step 110, if the display period of the all-black image displayed in step 104 was t _1, that is, when the display image is a right eye image and the all black image period t ₂ displayed Later, the left-eye image acquired in step 108 is displayed. Further, when the display period of the all-black image displayed in step 104 was t _2, that is, when the display image is a left eye image, after the display period t ₁ the all-black image, the step 108 Display the image for the right eye acquired in.

Then, the process returns to step 106 and the processes of steps 108 and 110 are repeated. In step 110 in the repeated processing, the all black image is displayed in the display period (t ₂ or t ₁ ) opposite to the all black image display period (t ₁ or t ₂ ) in step 110 in the previous process. To do. Thus, as a time chart of the image display shown in the upper part of FIG. 5, prior to display of the right eye image is all black image is the period t ₁ the display, all black image before the display of the left eye image period t _{2 is} displayed.

  Next, a shutter glasses switching timing setting processing routine executed in the shutter glasses control unit 50 of the stereoscopic image viewing system 10 of the first embodiment will be described with reference to FIG. This routine starts when a power switch (not shown) provided in the shutter glasses 40 is turned on. Here, a case where an all-black image is used as the identification image in correspondence with the display process will be described.

  In step 150, a captured image captured by the built-in camera 42 is captured, and it is determined whether or not a display image displayed on the display 22 has been detected from the captured image. The determination process can determine that a display image has been detected, for example, when a high-luminance rectangular region is detected in the captured image. When the display image is detected, the process proceeds to step 152. When the display image is not detected, the process of this step is repeated until the display image is detected.

  In step 152, the display image detected in step 150 is image-recognized, and it is determined whether or not at least one of the color and pattern of the display image is predetermined as a recognition image (here, an all-black image). judge. If it is determined that the display image is an identification image, that is, an all black image, the process proceeds to step 154, the timing at which the all black image is detected is stored in a predetermined storage area, and the process returns to step 150. . On the other hand, if it is determined that the display image is not an all-black image, the process proceeds to step 156.

  In step 156, the display period of the all black image is calculated based on the detection timing of the all black image recorded in step 154 and the timing when it is determined in step 152 that the image is not an all black image.

Next, at step 158, it determines whether the display period of all-black image calculated in step 156 is a period t ₁ or time t _2. When the display period of the all black image is the period t ₁ or the period t ₂ , the process proceeds to step 160, and when it is neither the period t ₁ nor the period t ₂ , the process returns to step 150. Note that when the process proceeds to this step without making a negative determination even once in step 152, that is, when the detection timing of all black images is not recorded, a negative determination is made at this step and the process returns to step 150.

In step 160, based on the determination result in step 158, it is determined whether the currently displayed frame is a right-eye image or a left-eye image. When the display period of the all-black image is t ₁ is determined to the current frame is determined to be right-eye image, when the display period of the all-black image is t _2, the current frame is a left eye image Is done.

Next, in step 162, based on the determination result in step 160, the opening / closing switching timing of the right-eye liquid crystal shutter 44a and the left-eye liquid crystal shutter 44b corresponding to the image display timing of the next frame is set. When the current frame is a right-eye image, a time point after the display time of the right-eye image (for example, 1/120 sec-t ₁ ) from the end timing of the all-black image detected in step 152 is the right-eye liquid crystal. set as close timing of the shutter 44a, further time after time t ₂ from which is set as the opening timing of the left-eye liquid crystal shutter 44b. Similarly, when the current frame is a left-eye image, a time point after the display period of the left-eye image (for example, 1/120 sec-t ₂ ) from the end timing of the all-black image detected in step 152 is calculated as follows: set as closing timing of the left-eye liquid crystal shutter 44b, the time of addition period t after ₁ therefrom, it is set as the opening timing of the right eye liquid crystal shutter 44a. Here, the case where the opening / closing timing corresponding to the next frame is set has been described, but the opening / closing timing corresponding to the frame after the next frame may be set.

  Next, in step 164, it is determined whether or not the power of the shutter glasses 40 is turned off. If the power is not turned off, the process returns to step 150 to repeat the process, and the power is turned off. Ends the process.

  The liquid crystal shutter drive unit 56 drives the right eye liquid crystal shutter 44a and the left eye liquid crystal shutter 44b to open and close based on the open / close timing set by executing the shutter glasses switching timing setting processing routine. As a result, as shown in the time chart of shutter glasses switching shown in the lower part of FIG. The right-eye liquid crystal shutter 44a is closed at the switching timing. Also, the left-eye liquid crystal shutter 44b is opened at the timing when the all-black image is switched to the left-eye image, and the left-eye liquid crystal shutter 44b is closed at the timing when the left-eye image is switched to the all-black image.

  As described above, according to the stereoscopic image viewing system of the first embodiment, in the display device, before displaying the right-eye image and the left-eye image, the identification image is displayed in different display periods, In the shutter glasses, since the display period of the right-eye image and the left-eye image can be distinguished based on the display period of the identification image, the opening / closing timings of the right-eye liquid crystal shutter and the left-eye liquid crystal shutter are set appropriately. In other words, the left and right images can be synchronized, and reverse viewing can be prevented.

  Further, since both the right-eye liquid crystal shutter and the left-eye liquid crystal shutter are closed during the display period of the identification image, the viewer does not feel uncomfortable due to the display of the identification image.

  In the first embodiment, the case where the identification image is an all-black image has been described. However, the present invention is not limited to this, and other colors such as an all-red image and an all-blue image may be used. Good. In addition to the case where the entire image has the same color, it may be an image for identification having a predetermined pattern. In this case, the display image detected by the built-in camera may be pattern-recognized, and it may be determined whether or not the display image is an identification image based on whether or not it matches a predetermined pattern.

  Next, a second embodiment will be described. In the first embodiment, the case where the right-eye image and the left-eye image are distinguished by changing the display period of the identification image has been described. However, in the second embodiment, different identification images are used. A case where the right-eye image and the left-eye image are distinguished from each other will be described. The stereoscopic image viewing system according to the second embodiment is different from the stereoscopic image viewing system 10 according to the first embodiment, since only the identification image superimposing unit 34 and the timing setting unit 54 are different. Description other than the points is omitted.

  The identification image superimposing unit 34 as the identification image for detecting the switching timing between the right eye image and the left eye image, before displaying the right identification image and the left eye image displayed before the right eye image is displayed. A left identification image to be displayed is prepared in advance. The right identification image and the left identification image are different in at least one of color and pattern. For example, the right identification image can be an all-red image in which the entire image is red, and the left identification image can be an all-blue image in which the entire image is blue. In the identification image superimposing unit 34, the right identification image is displayed for a predetermined period t from the start of display of the right eye image, and the left identification image is displayed for a predetermined period t from the start of display of the left eye image. The identification image and the left identification image are superimposed on the right eye image and the left eye image, respectively.

  The timing setting unit 54 recognizes the display image detected from the captured image captured by the built-in camera 42, so that at least one of the color and pattern of the display image matches that of the predetermined right identification image. It is determined whether or not it matches with that of the left identification image. If it is determined that the image is a right identification image or a left identification image, it is determined whether the currently displayed frame is a right eye image or a left eye image based on the determination result, and the next frame or subsequent frames The opening / closing switching timing of the right-eye liquid crystal shutter 44a and the left-eye liquid crystal shutter 44b is set according to the image display timing of the frame.

  Next, a display processing routine executed in the display device control unit 30 of the stereoscopic image viewing system 10 of the second embodiment will be described with reference to FIG. This routine starts when an operation switch (not shown) is operated to instruct display of a stereoscopic image (playback of a moving image). Here, a case where an all red image is used as the right identification image and an all blue image is used as the left identification image will be described. Further, the same processing as the display processing of the first embodiment is denoted by the same reference numeral, and detailed description thereof is omitted.

  In step 100, an image of the first frame is acquired. Next, in step 102, it is determined whether the image of the first frame is an image for the right eye or an image for the left eye.

  Next, in step 204, if the first frame is a right-eye image based on the determination result in step 102, the right-eye image acquired in step 100 is displayed after displaying a full red image for a period t. . If the first frame is a left-eye image, the all-blue image is displayed for a period t, and then the left-eye image acquired in step 100 is displayed.

  Next, Steps 106 and 108 are executed to obtain an image of the next frame. Next, in Step 210, when the identification image displayed in Step 204 is an all-red image, that is, the display image is the right eye. In the case of the image for use, after the all-blue image is displayed for the period t, the image for the left eye acquired in step 108 is displayed. If the identification image displayed in step 204 is an all-blue image, that is, if the display image is a left-eye image, the entire red image is displayed for a period t and then acquired in step 108. Display the right eye image.

  Then, the process returns to step 106 and the processes of steps 108 and 210 are repeated. In step 210 in the case of repeated processing, an identification image (all blue image or all red image) opposite to the identification image (all red image or all blue image) displayed in step 210 in the previous process is displayed. . As a result, as shown in the time chart of the image display shown in the upper part of FIG. 8, the all-red image is displayed for the period t before the right-eye image is displayed, and the all-blue image is displayed for the period t before the left-eye image is displayed. Is done.

  Next, a shutter glasses switching timing setting processing routine executed in the shutter glasses controller 50 of the stereoscopic image viewing system 10 of the second embodiment will be described with reference to FIG. This routine starts when a power switch (not shown) provided in the shutter glasses 40 is turned on. Here, a case where an all-red image is used as the right identification image and an all-blue image is used as the left identification image in correspondence with the display processing will be described. Further, the same processes as the shutter glasses switching timing setting process of the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  When the display image is detected in step 150, the process proceeds to step 252 where the display image detected in step 150 is image-recognized, and at least one of the color and pattern of the display image is determined in advance as a right recognition image. It is determined whether it is an image (here, an all-red image) or an image predetermined as an image for left recognition (here, an all-blue image). If it is determined that the display image is a right identification image or a left identification image, that is, an all-red image or an all-blue image, the process proceeds to step 254 and an all-red image or an all-blue image is detected. The timing is stored in a predetermined storage area, and the process returns to step 150. On the other hand, if it is determined that the display image is neither an all-red image nor an all-blue image, the process proceeds to step 256.

  In step 256, based on the detection timing of the all-red image or all-blue image recorded in step 254 and the timing when it is determined in step 252 that the image is not an all-red image or all-blue image, The display period of the image or all blue image is calculated.

  Next, in step 258, it is determined whether the display period of the all red image or all blue image calculated in step 256 is the period t. If the display period of the all-red image or all-blue image is the period t, the process proceeds to step 260. If not, the process returns to step 150. Note that even if the determination is made at step 252 without making a negative determination even once, that is, when the detection timing of the all-red image or all-blue image is not recorded, a negative determination is made at this step and step 150 is performed. Return to.

  In step 260, it is determined based on the determination result in step 252 whether the currently displayed frame is a right-eye image or a left-eye image. When the identification image is an all-red image, it is determined that the current frame is a right-eye image. When the identification image is an all-blue image, it is determined that the current frame is a left-eye image.

  Next, in step 162, the right-eye liquid crystal shutter 44a and the left-eye according to the image display timing of the next frame, as shown in the time chart of shutter glasses switching in the lower part of FIG. The opening / closing switching timing of the liquid crystal shutter 44b is set.

  As described above, according to the stereoscopic image viewing system of the second embodiment, the display device displays the all-red image as the identification image before displaying the right-eye image, and before displaying the left-eye image. Since the all-blue image is displayed as the identification image, and the shutter glasses can distinguish the display period of the right-eye image and the left-eye image based on whether the identification image is an all-red image or an all-blue image, The opening / closing timings of the right-eye liquid crystal shutter and the left-eye liquid crystal shutter can be set appropriately, and both the left and right images can be synchronized to prevent reverse viewing.

  In addition, since both the right-eye liquid crystal shutter and the left-eye liquid crystal shutter are closed during the display period of the right identification image and the left identification image, the viewer feels uncomfortable due to the display of the identification image. Never give to.

  In the second embodiment, the case where the right identification image and the left identification image are all red images and all blue images has been described. However, the present invention is not limited to this, and the right eye image and the left eye image are not limited thereto. It is sufficient that at least one of the color and the pattern is different so that the image can be distinguished.

  Further, in combination with the first embodiment, the display period of the right identification image and the display period of the left identification image may be different. In this case, in the shutter glasses, the accuracy of distinguishing the right-eye image and the left-eye image can be improved by determining the difference between at least one of the color and pattern of the identification image and the display period. it can.

  Next, a third embodiment will be described. In the third embodiment, a case will be described in which the identification image has a higher contrast than the right-eye image and the left-eye image. Note that the stereoscopic image viewing system according to the third embodiment is different from the stereoscopic image viewing system 10 according to the first embodiment only in the identification image superimposing unit 34. Omitted.

  The identification image superimposing unit 34 prepares a plurality of identification images with different at least one of luminance and saturation as identification images for detecting the switching timing between the right eye image and the left eye image. . Then, based on the luminance and saturation of a predetermined frame of the right-eye image and the left-eye image, an identification image having a higher contrast than the right-eye image and the left-eye image is selected and acquired by the image acquisition unit 32. Is superimposed on the image.

  Next, a display processing routine executed in the display device control unit 30 of the stereoscopic image viewing system 10 according to the third embodiment will be described with reference to FIG. This routine starts when an operation switch (not shown) is operated to instruct display of a stereoscopic image (playback of a moving image). In addition, about the process same as the display process of 1st Embodiment, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

  In step 300, a moving image recorded on a recording medium (not shown) or a predetermined number of frames up to a predetermined period ahead of a moving image downloaded via a network is acquired. Next, in step 102, it is determined whether the image of the first frame among the predetermined frames acquired in step 100 is a right-eye image or a left-eye image.

  Next, in step 302, the average values of the luminance and saturation of the predetermined number of frames acquired in step 300 are calculated.

Next, in step 304, based on the calculation result in step 302, an identification image having a high contrast and a high chromaticity difference with respect to the display image is selected from a plurality of identification images prepared. Based on the determination result in step 102, if the first frame is a right eye image, the selected identification image is displayed for a period t1, and then _one frame of the predetermined number of frames acquired in step 100 is displayed. Display right eye image. Further, the first frame after the display period t ₂ the identification image selected in the case of the left-eye image, and displays the left eye image of the first frame of the image of the predetermined number of frames acquired at step 100.

  Next, when it is determined in step 106 that the next frame exists, the process proceeds to step 308, and images of a predetermined number of frames ahead of the next frame for a predetermined period are acquired.

  Next, in step 309, as in step 302 above, the average values of luminance and saturation of the predetermined number of frames acquired in step 308 are calculated.

Next, in step 310, based on the calculation result in step 309, an identification image having a high contrast and a high chromaticity difference with respect to the display image is selected from a plurality of identification images prepared. Then, after the identification image is displayed in the display period (t ₂ or t ₁ ) opposite to the display period (t ₁ or t ₂ ) displayed in step 304 above, the image of the next frame is displayed, and the process proceeds to step 106. Return.

  In this case, in step 152 of the shutter glasses switching timing setting process (FIG. 6), it may be determined whether or not the display image is one of a plurality of identification images.

  For the predetermined frame acquired in step 300, the identification image selected in step 304 may be used by omitting step 309.

  As described above, according to the stereoscopic image viewing system of the third embodiment, in addition to the effect of being able to be synchronized with both the left and right images and preventing reverse viewing, the identification image Has a high contrast and a high chromaticity difference with respect to the display image, so that the image for identification can be detected with high accuracy.

  Note that if the contrast between the display image and the image for identification is too high, it may feel flickering for those who are not wearing shutter glasses. In consideration of the detection accuracy of the image for use, it is preferable to select an image for identification that minimizes the contrast and chromaticity difference from the display image.

  Further, in combination with the second embodiment, a plurality of identification images may be prepared for each of the right identification image and the left identification image.

  Next, a fourth embodiment will be described. In the fourth embodiment, a case will be described in which the display period of the right-eye image and the display period of the left-eye image are the same. Note that the configuration of the stereoscopic image viewing system according to the fourth embodiment is the same as that of the stereoscopic image viewing system 10 according to the first embodiment, and a description thereof will be omitted.

As shown in FIG. 11, in the fourth embodiment, when the display device 20 displays an identification image (here, an all-black image), the display period of the right-eye image and the display of the left-eye image are displayed. Displayed at the same timing as the period. For example, the display period of the all black image when displayed before the display of the right eye image is t ₁ , and the display period of the all black image when displayed before the display of the left eye image is t ₂ (t ₂ ≠ t ₁ ). When the display period of one frame is 1/120 second, the display period _{t g} of the right eye image and the left eye image _can be calculated by _{t g = 1 / 120- (t} 1 + t 2) / 2.

In this case, in steps 104 and 110 of the display process (FIG. 4), after the all black image is displayed for the period t ₁ before the right eye image is displayed, the right eye image is displayed for the period t _g and before the left eye image is displayed. to after the display period t ₂ the Zenkuro image, a period t _g displaying left-eye images.

  As described above, according to the stereoscopic image viewing system of the fourth embodiment, in addition to the effect that synchronization can be achieved with respect to both the left and right images and the reverse viewing can be prevented, the image for the right eye By making the display periods of the left-eye image and the left-eye image the same, it is possible to suppress flickering of the luminance difference due to switching between the left and right images and to improve the ease of viewing.

  Next, a fifth embodiment will be described. In the first to fourth embodiments, the case where the identification image is displayed for a predetermined period before the display image is displayed has been described. However, in the fifth embodiment, the entire display period of the display image is displayed at a predetermined cycle. A case where an identification image is displayed will be described. Note that the stereoscopic image viewing system according to the fifth embodiment is different from the stereoscopic image viewing system 10 according to the first embodiment, since only the identification image superimposing unit 34 and the timing setting unit 54 are different. Description other than the points is omitted.

The identification image superimposing unit 34 prepares an identification image (for example, an all black image) in which at least one of a color and a pattern is determined in advance, and the left eye has a cycle T ₁ during the display period of the right eye image. during the display period of use the image displaying the identification image at a period T _2. The display period of the identification image is very short with respect to the display period of the display image.

  The timing setting unit 54 detects an identification image from the display image, calculates a period in which the identification image is displayed, and determines whether the currently displayed frame is the right-eye image or the left-eye image based on the calculated period. Judge whether it is an image. Based on the switching timing of the period at which the identification image is displayed, the opening / closing switching timings of the right-eye liquid crystal shutter 44a and the left-eye liquid crystal shutter 44b according to the display timing of the display image of the next frame or subsequent frames are set. Set.

  Next, with reference to FIG. 12, a display processing routine executed in the display device control unit 30 of the stereoscopic image viewing system 10 according to the fifth embodiment will be described. This routine starts when an operation switch (not shown) is operated to instruct display of a stereoscopic image (playback of a moving image). Here, a case where an all-black image is used as the identification image will be described. Further, the same processing as the display processing of the first embodiment is denoted by the same reference numeral, and detailed description thereof is omitted.

  In step 100, an image of the first frame is acquired. Next, in step 102, it is determined whether the image of the first frame is an image for the right eye or an image for the left eye.

Next, in step 504, based on the determination result of step 102, 1 if th frame of the right-eye image, and displays the right eye image, all in a cycle T ₁ during the display period of the right eye image Display a black image. Further, the first frame is the case of the left-eye image, and displays the left eye image, and displays the all-black image at a period T ₂ during the display period of the left-eye image.

Next, Steps 106 and 108 are executed to obtain an image of the next frame. Next, in Step 510, the image of the next frame is displayed, and at the same time, the all black image is displayed in Step 504 (T ₁ Alternatively, an all-black image is displayed at a period (T ₂ or T ₁ ) opposite to T ₂ ), and the process returns to step 106. Thus, as a time chart of the image display shown in the upper part of FIG. 13, during the display period of the right eye image at a period T _1, the all-black image is displayed in the period T ₂ are prior display of the left-eye image The

Next, a shutter glasses switching timing setting process routine executed by the shutter glasses controller 50 of the stereoscopic image viewing system 10 according to the fifth embodiment will be described with reference to FIG. This routine starts when a power switch (not shown) provided in the shutter glasses 40 is turned on. Here, it is assumed that an all-black image is used as the identification image in correspondence with the display processing, and that the periods T ₁ and T ₂ for displaying the all-black image are T ₁ > T ₂ . Further, the same processes as the shutter glasses switching timing setting process of the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  If it is determined that the display image is an all-black image by executing steps 150 and 152, the process proceeds to step 154, and the timing at which the all-black image is detected is stored in a predetermined storage area. Return to step 150. On the other hand, if it is determined that the display image is not an all black image, the process proceeds to step 550.

In step 550, the display image is continuously detected to determine whether the display image is an all-black image. If the display image is not the all-black image, the process proceeds to step 551, determines whether the elapsed time since it is determined not to be a full black image in step 152 exceeds T _1. If it does not exceed a T _1, the flow returns to step 550, if it exceeds _{T 1,} the process returns to step 150.

  If it is determined in step 550 that the display image is an all-black image, the process proceeds to step 556 where the detection timing of the all-black image recorded in step 154 and the display image in step 550 are all black. Based on the timing when it is determined that the image is an image, a cycle in which the all black image is displayed is calculated.

Next, in step 558, the period of all-black image calculated in step 556 is displayed determines whether a T ₁ or T _2. If the display period of the all black image is T ₁ or T ₂ , the process proceeds to step 560, and if it is neither T ₁ nor T ₂ , the process returns to step 150. Note that when the process proceeds to this step without making a negative determination even once in step 152, that is, when the detection timing of all black images is not recorded, a negative determination is made at this step and the process returns to step 150.

In step 560, it is determined whether the currently displayed frame is the right-eye image or the left-eye image based on the determination result in step 558. When the period to be displayed in all-black image is T _1, it is determined that the current frame is a right-eye image, when the period to be displayed in the all-black image is T ₂ are, the current frame image for the left eye It is determined that

  Next, in step 162, based on the determination result in step 560, as shown in the time chart of shutter glasses switching in the lower part of FIG. 13, the right-eye liquid crystal shutter 44a and the left-eye liquid crystal shutter 44a according to the image display timing of the next frame The opening / closing switching timing of the liquid crystal shutter 44b is set.

  As described above, according to the stereoscopic image viewing system of the fifth embodiment, in addition to the effect that synchronization can be achieved for both the left and right images and reverse viewing can be prevented, the identification image Even if a detection error occurs, there is a high possibility that it can be detected again within one frame, so that the reliability of timing setting can be improved.

  In the fifth embodiment, the case where the identification image is an all-black image has been described. However, the present invention is not limited to this, and other colors and patterns such as an all-red image and an all-blue image are used. It may be used. Further, the identification image displayed during the right-eye image display may be different from the identification image displayed during the left-eye image display.

  Alternatively, a plurality of identification images may be prepared, and an identification image having a high contrast and a high chromaticity difference with respect to the display image may be selected. In this case, in order to prevent the image from flickering, it is preferable to select an identification image that minimizes the contrast and chromaticity difference with the display image in consideration of the detection accuracy of the identification image. .

  Next, a sixth embodiment will be described. In the fifth embodiment, the case has been described in which the identification image is displayed at a predetermined cycle throughout the display image display period. In the sixth embodiment, a predetermined image is displayed in a predetermined period of the display image display start. A case where the identification image is displayed at a cycle will be described. Note that the stereoscopic image viewing system according to the sixth embodiment is different from the stereoscopic image viewing system according to the fifth embodiment only in the identification image superimposing unit 34, and thus description other than the differences is omitted. To do.

Recognition image superimposing section 34, identifies an image for at least one of a defined color and pattern (e.g., all black images) are prepared in advance, in the period T ₁ in a predetermined period t of the start of displaying the right eye image in the predetermined period t of the start of displaying the left eye image to display the identification image at a period T _2. The display period of the identification image is very short with respect to the display period of the display image.

  Next, a display processing routine executed in the display device control unit 30 of the stereoscopic image viewing system 10 according to the sixth embodiment will be described with reference to FIG. This routine starts when an operation switch (not shown) is operated to instruct display of a stereoscopic image (playback of a moving image). Here, a case where an all-black image is used as the identification image will be described. Further, the same processing as the display processing of the first embodiment is denoted by the same reference numeral, and detailed description thereof is omitted.

  In step 100, an image of the first frame is acquired. Next, in step 102, it is determined whether the image of the first frame is an image for the right eye or an image for the left eye.

Next, in step 604, based on the determination result in step 102, when the first frame is a right-eye image, the right-eye image is displayed and a period T is displayed in a predetermined period t of the display start of the right-eye image. ₁ to display an all black image. Further, the first frame is the case of the left-eye image, and displays the left eye image, and displays the all-black image at a period T ₂ in a predetermined period t of the start of displaying the left eye image.

Next, Steps 106 and 108 are executed to obtain an image of the next frame. Next, in Step 610, the image of the next frame is displayed, and the period (T ₁ Or, in a period (T ₂ or T ₁ ) opposite to T ₂ ), the all black image is displayed in the predetermined period t of the display start of the display image, and the process returns to Step 106. Accordingly, as shown in the time chart of image display shown in the upper part of FIG. 16, the entire display is performed in the cycle T ₁ in the predetermined period t of the display start of the right eye image and in the cycle T ₂ in the predetermined period t of the display start of the left eye image. A black image is displayed.

  In this case, the shutter glasses switching timing setting process can be performed in the same manner as the shutter glasses switching timing setting process of the fifth embodiment, as shown in the shutter glasses switching time chart in the middle of FIG. Further, as shown in the time chart for switching shutter glasses in the lower part of FIG. 16, the processing is performed in the same manner as the shutter glasses switching timing setting process of the second embodiment, and the display start period t of the right-eye image and the left-eye image is displayed. The shutter glasses may be closed.

  As described above, according to the stereoscopic image viewing system of the sixth embodiment, it is possible to synchronize both the left and right images and prevent reverse viewing.

  In the sixth embodiment, the case where the identification image is an all-black image has been described. However, the present invention is not limited to this, and other colors and patterns such as an all-red image and an all-blue image are used. It may be used. Further, the identification image displayed during the right-eye image display may be different from the identification image displayed during the left-eye image display.

  Alternatively, a plurality of identification images may be prepared, and an identification image having a high contrast and a high chromaticity difference with respect to the display image may be selected. In this case, in order to prevent the image from flickering, it is preferable to select an identification image that minimizes the contrast and chromaticity difference with the display image in consideration of the detection accuracy of the identification image. .

  In the sixth embodiment, the case where the predetermined period for starting the display of the right-eye image and the predetermined period for starting the display of the left-eye image are the same as the display period of the identification image has been described. You may make it set a period.

  In each of the above embodiments, the case where the display device is controlled to display the identification image superimposed on the display image has been described. However, the stereoscopic image is described in each embodiment. In the case where a simple identification image is superimposed in advance, only the shutter glasses described in each embodiment can achieve the effects of the present invention.

DESCRIPTION OF SYMBOLS 10 Stereoscopic image viewing system 20 Display apparatus 22 Display 30 Display apparatus control part 32 Image acquisition part 34 Identification image superimposition part 36 Display control part 40 Shutter glasses 42 Built-in camera 44a Right-eye liquid crystal shutter 44b Left-eye liquid crystal shutter 50 Shutter glasses control Unit 54 timing setting unit 56 liquid crystal shutter driving unit

Claims (13)

Display means for alternately displaying a right-eye image and a left-eye image;
An identification image in which at least one of a color and a pattern is predetermined is displayed on the display means for a first predetermined period before the right-eye image is displayed, and the first predetermined image is displayed before the left-eye image is displayed. Display control means for controlling to be displayed for a second predetermined period different from the period, and a display device,
Shutter glasses having a right eye shutter and a left eye shutter,
Detecting means for detecting an image displayed on the display means;
Recognizing the image detected by the detection means, determining whether or not the detected image is the identification image, and if it is determined that the image is the identification image, the display period of the identification image Setting means for setting opening and closing timings of the right-eye shutter and the left-eye shutter,
Shutter glasses including drive means for driving opening and closing of the right-eye shutter and the left-eye shutter based on the opening and closing timing set by the setting means;
Stereoscopic image viewing system including The display control means displays the identifying image displayed before displaying the right-eye image and at least one of the color and the pattern of the identifying image displayed before displaying the left-eye image. To control and
2. The stereoscopic image viewing system according to claim 1, wherein the setting unit sets an opening / closing timing of the right-eye shutter and the left-eye shutter based on at least one of a display period, a color, and a pattern of the identification image.   The said display control means controls so that the said image for identification may be displayed so that the display period of the said image for left eyes and the display period of the said image for right eyes may become the same. Stereoscopic image viewing system. The display control means includes a first period image in which the identification image is displayed in a first period within the first predetermined period, and the first period is defined as the first period in the second predetermined period. Controls to be displayed including a second period image displayed at a different second period,
4. The opening / closing timing of the right-eye shutter and the left-eye shutter is set based on a display period and a display period of the identification image. Stereoscopic image viewing system. Display means for alternately displaying a right-eye image and a left-eye image;
A right identification image in which at least one of a color and a pattern is predetermined is displayed on the display means for a predetermined period before the right eye image is displayed, and at least one of a color and a pattern different from the right identification image is displayed. A display control unit that controls a predetermined left identification image to be displayed for the predetermined period before displaying the left-eye image;
Shutter glasses having a right eye shutter and a left eye shutter,
Detecting means for detecting an image displayed on the display means;
Recognizing the image detected by the detection means, determining whether the detected image is the right identification image or the left identification image, and being the right identification image or the left identification image If it is determined, the right-eye shutter and the left-eye shutter are opened and closed based on the right identification image or the left identification image and the display period of the right identification image or the left identification image. Setting means for setting the timing;
Shutter glasses including drive means for driving opening and closing of the right-eye shutter and the left-eye shutter based on the opening and closing timing set by the setting means;
Stereoscopic image viewing system including   6. The display control means controls so that at least one of a color and a pattern of the right identification image and the left identification image has a higher contrast than the right eye image and the left eye image. Stereoscopic viewing system. The display control means includes a first period image in which the right identification image is displayed in a first period, and the left identification image is displayed in a second period different from the first period. Control to be displayed including two period images,
The setting means includes the right-eye shutter and the left-eye shutter based on at least one of a color and a pattern of the right identification image and the left identification image, a display period, and a period displayed in the period. The stereoscopic image viewing system according to claim 5 or 6, wherein an opening / closing timing of the stereoscopic image is set. Display means for alternately displaying a right-eye image and a left-eye image;
An identification image in which at least one of a color and a pattern is predetermined is displayed on the display means in a first period during the display period of the right eye image, and the first image is displayed during the display period of the left eye image. Display control means for controlling the display so as to be displayed in a second cycle different from the cycle of
Shutter glasses having a right eye shutter and a left eye shutter,
Detecting means for detecting an image displayed on the display means;
Recognizing the image detected by the detection means to determine whether at least one of the color and the pattern is a predetermined identification image, and when it is determined that the image is the identification image, the identification Setting means for setting opening and closing timings of the right-eye shutter and the left-eye shutter based on a period in which the image is displayed and a timing at which the period is switched;
Shutter glasses including drive means for driving opening and closing of the right-eye shutter and the left-eye shutter based on the opening and closing timing set by the setting means;
Stereoscopic image viewing system including The display control unit is configured to change at least one of a color and a pattern of the identification image displayed during the display period of the right-eye image and the identification image displayed during the display period of the left-eye image. Control to display,
9. The setting unit sets opening / closing timings of the right-eye shutter and the left-eye shutter based on at least one of the color and pattern of the identification image, a display period, and a timing at which the period is switched. The stereoscopic image viewing system described.   The stereoscopic display according to claim 8 or 9, wherein the display control unit performs control so that at least one of a color and a pattern of the identification image has a higher contrast than the right-eye image and the left-eye image. Image viewing system. Shutter glasses having a right eye shutter and a left eye shutter,
Detection means for detecting an image displayed on the display means;
When the image detected by the detection means is recognized, it is determined whether at least one of the color and the pattern is a predetermined identification image, and the image is determined to be the identification image Determining whether the display period of the identification image is a first predetermined period or a second predetermined period different from the first predetermined period, and based on the display period of the identification image, Setting means for setting the opening and closing timing of the shutter and the left-eye shutter;
Drive means for driving opening and closing of the right-eye shutter and the left-eye shutter based on the opening and closing timing set by the setting means;
Including shutter glasses. Shutter glasses having a right eye shutter and a left eye shutter,
Detection means for detecting an image displayed on the display means;
Recognizing the image detected by the detection means, the detected image is a right identification image in which at least one of a color and a pattern is determined in advance, or at least one of a color and a pattern different from the right identification image Is a predetermined left identification image, and if it is determined that the right identification image or the left identification image, the right identification image or the left identification image, And setting means for setting opening / closing timings of the right eye shutter and the left eye shutter based on a display period of the right identification image or the left identification image;
Drive means for driving opening and closing of the right-eye shutter and the left-eye shutter based on the opening and closing timing set by the setting means;
Including shutter glasses. Shutter glasses having a right eye shutter and a left eye shutter,
Detection means for detecting an image displayed on the display means;
Recognizing the image detected by the detection means to determine whether at least one of the color and the pattern is a predetermined identification image, and when it is determined that the image is the identification image, the identification Determining whether the period for displaying the image for use is the first period or a second period different from the first period, and based on the period for displaying the identification image and the timing at which the period is switched, Setting means for setting opening and closing timings of the right-eye shutter and the left-eye shutter;
When the determination unit determines that the period for displaying the identification image is the first period, the right eye shutter is opened and closed corresponding to the timing at which the period for displaying the identification image is switched. When the timing is set and it is determined that the period for displaying the identification image is the second period, the opening and closing of the left-eye shutter corresponding to the timing at which the period for displaying the identification image is switched Setting means for setting the timing;
Drive means for driving opening and closing of the right-eye shutter and the left-eye shutter based on the opening and closing timing set by the setting means;
Including shutter glasses.

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