WO2012029571A1

WO2012029571A1 - Three-dimensional image viewing glasses

Info

Publication number: WO2012029571A1
Application number: PCT/JP2011/068840
Authority: WO
Inventors: 藤井　透; 恒之久保
Original assignee: オリンパスビジュアルコミュニケーションズ株式会社
Priority date: 2010-08-31
Filing date: 2011-08-22
Publication date: 2012-03-08
Also published as: JP2012053237A

Abstract

The present invention addresses the problem of providing three-dimensional image viewing glasses which can be used even for already produced three-dimensional image contents obtained by 3D-CG and live action and can deal with a fusion trouble of a three-dimensional image due to the inclination of the head of a viewer without the viewer missing an opportunity to view the three-dimensional image as a three-dimensional image, and a three-dimensional image viewing method using the three-dimensional image viewing glasses. Three-dimensional image viewing glasses which are worn on the face when a three-dimensional image having an image for the right eye and an image for the left eye, which have a disparity therebetween, is viewed, guide the image for the right eye to the right eye of a viewer, and guide the image for the left eye to the left eye of the viewer are characterized by comprising a detection unit which detects the inclination to the right or left of the head of the viewer, a warning unit which gives the viewer a warning, and a control unit which operates the warning unit when the inclination to the right or left of the head of the viewer is a predetermined value or more on the basis of the result of the detection by the detection unit.

Description

Glasses for 3D image observation

The present invention guides a right-eye image displayed on a display device and a right-eye image and a left-eye image having parallax to each other to the right eye of the observer, and the left-eye image is viewed by the observer. The present invention relates to three-dimensional image observation glasses that lead to the left eye and a three-dimensional image observation method using the three-dimensional image observation glasses.

Conventionally, a technique for realizing stereoscopic viewing by separately providing a left-eye image and a right-eye image, which are two-dimensional images with parallax in the left and right eyes of an observer, is known. For example, (1) the left and right images are combined with two colors of red and blue, respectively, and blue and red filters are attached to the glasses worn by the observer, and the left eye has only one image of blue or red, and the right eye Then, only the other image of blue or red can be observed, and an anaglyph that obtains a three-dimensional image by binocular parallax. (2) An image for the left eye and an image for the right eye are alternately displayed and synchronized with this alternate display. The left and right shutters of the glasses worn by the observer are opened and closed so that only the right eye image can be seen by the right eye and only the left eye image can be seen by the left eye, (3) the left eye image And the right-eye image are made to have different polarization directions so that only one image is transmitted by the right and left polarization filters of the glasses worn by the observer, the right eye can see only the right-eye image, and the left eye (4) HMD (Hea There is known a method using an apparatus equipped with an optical system that provides images to the left and right eyes of an observer such as d Mounted Display).

The parallax between the right-eye image and the left-eye image described above is observed as a phenomenon in which the position of the same object in the two images is shifted, for example. When the same object is observed with both eyes in the real world, the position of the image shifts as parallax in the separation direction of both eyes. At the time of three-dimensional image observation, since the observer's head is usually upright, the separation direction of both eyes is horizontal, and the positional deviation between the right-eye image and the left-eye image as parallax is the horizontal direction. Preferably it is. In this way, as in the real world, the separation direction (horizontal direction) of both eyes and the direction of parallax (horizontal direction) match, so that the object is easily fused and recognized as a three-dimensional image. . On the other hand, when an image with parallax in the horizontal direction is observed with the observer's head tilted, fusion may be difficult.

1 and 2 are diagrams for explaining this phenomenon.

For example, in a normal case, the observer's head indicated by a broken line in FIG. 1A is vertical and the head is not inclined in the horizontal direction. In this case, the left and right eyes of the observer are also separated in the horizontal direction, the image shift direction and the eye separation direction coincide with each other, and the observer observes the right eye image when observing the image shown in FIG. 1B. It is possible to easily fuse the image for the left eye.

On the other hand, when the observer's head indicated by a broken line in FIG. 2A is tilted to the right, for example, the separation direction of the left and right eyes is naturally tilted in the same direction. For this reason, when the image shown in FIG. 2B, which is the same as FIG. 1B, is observed, the deviation of the image due to the parallax in the horizontal direction does not match the separation direction of both eyes, and the image of the right eye image and the left eye image are fused. It becomes difficult.

Usually, in the binocular fusion examination, the allowable head tilt (rotation) is said to be 6 to 10 degrees, and if it exceeds this, there is a high possibility that the fusion will be disturbed.

[Patent Document 1] and [Patent Document 2] have been proposed as inventions corresponding to the inclination of the head during such three-dimensional image observation. For example, in the description of the third embodiment of Patent Document 1, the inclination of the 3D image observation glasses is detected during 3D image observation, and if it is horizontal, the right eye image is incident on the right eye of the glasses, and the left A technique is disclosed in which a left-eye image is controlled to enter the eye and a three-dimensional image is presented to an observer. In this technique, the right eye image is incident on both the left and right eyes of the glasses if they are not horizontal, or the left eye image is incident on both eyes, and a two-dimensional image is presented to the observer. .

Patent Document 2 detects the inclination of the glasses for 3D image observation at the time of 3D image observation, and the right eye image and the left eye image having the parallax in the direction corresponding to this inclination are stored in, for example, a 3D database. A technique for generating data and displaying it on a display device is disclosed.

JP 2001-296501 A JP 2006-084963 A

However, with the technique of Patent Document 1, the 3D image is switched to the 2D image without the observer's knowledge. For this reason, for example, an observer may mistakenly observe a two-dimensional image as a three-dimensional image with poor stereoscopic effect and observe it. In this case, the intention of the producer who has created a three-dimensional image having a three-dimensional effect is not transmitted to the observer, and the video work can be obtained with an unreasonably low evaluation, and the observer also has a powerful three-dimensional effect. The opportunity to appreciate dimensional images is missed.

Further, the technique of Patent Document 2 sequentially extracts data from a three-dimensional database at the time of observation, and generates a right eye image and a left eye image using, for example, a computer. graphics) environment. On the other hand, when the manufactured 3D-CG image is to be viewed later, the parallax is determined at the time of manufacturing, so the direction of the parallax cannot be changed later, and the technique of Patent Document 2 cannot be used. Also, even when a three-dimensional image is captured by a real image, the right-eye image, the left-eye image, and the parallax are determined at the time of imaging, so the direction of the parallax cannot be changed later. Can not.

The present invention has been made in view of such a problem, and was obtained by a manufactured 3D-CG or a live-action photograph without losing the opportunity for an observer to appreciate a 3D image as a 3D image. 3D image observation glasses that can be used for 3D image content and that can cope with a 3D image fusion failure due to the tilt of the observer's head, and 3D image observation glasses. It aims to provide a method.

The glasses for three-dimensional image observation according to the present invention are attached to the face when observing a right-eye image and a left-eye image having parallax, and guide the right-eye image to the right eye of the observer. The left eye image is guided to the left eye of the observer, and a detection unit that detects right and left inclinations of the observer's head, a warning unit that warns the observer, and a detection result of the detection unit And a control unit that operates the warning unit when the left-right inclination of the observer's head is greater than or equal to a predetermined value.

As the detection unit, a sensor such as a gravity sensor or an acceleration sensor can be used. The inclination detected by the sensor is the inclination of the 3D image observation glasses when the observer wears the glasses. The sensor detects the inclination of the observer's head and the inclination of the 3D image observation glasses. It is detected indirectly. However, a sensor may be provided on the head of the observer wearing the 3D image observation glasses to detect the tilt of the head directly.

To describe a detailed configuration example, one example of the glasses for observing a three-dimensional image of the present invention detects the tilt of the observer's head using a sensor configured by, for example, an acceleration sensor, and the tilt exceeds a predetermined threshold. In this case, only the observer is warned by operating the vibrator which is a warning section. This is a warning that does not generate a loud sound or light that is annoying to surrounding people. Furthermore, a plurality of warning parts are provided, for example, vibrators are provided on the left and right sides, and either one of the vibrators is operated according to the direction of the inclination of the head of the observer so that the observer can easily recognize the direction of the inclination of the head. A configuration example is also possible.

The warning unit is not limited to the vibrator, and when the inclination of the observer's head exceeds a predetermined threshold, the right-eye optical shutter and the left-eye optical that form part of the glasses for three-dimensional image observation It is also possible to warn the observer by controlling the opening and closing of the shutter. Further, when the tilt of the observer's head exceeds a predetermined threshold, the observer can be warned by changing the transmittance of the transmittance variable member positioned in front of at least one eye. These are also warnings that do not generate loud sounds or light that is annoying to the people around you.

A three-dimensional image observation system of the present invention includes the three-dimensional image observation glasses configured as described above, and a display device that displays a right-eye image and a left-eye image having parallax with each other. A tilt changing mechanism that changes the left and right tilt of the display device, a detection unit that detects the left and right tilt of the observer's head, and a left and right tilt of the viewer's head based on the detection result of the detection unit; And a control unit that changes the horizontal tilt of the display device beside the tilt changer so that the difference between the horizontal tilts of the display device is equal to or less than a predetermined threshold value.

The three-dimensional image observation method of the present invention includes the three-dimensional image observation glasses configured as described above and a display device that displays a three-dimensional image having a right-eye image and a left-eye image that have parallax with each other. In the three-dimensional image observation system, the right and left tilt detection unit of the observer's head detects the warning, and based on the detection result of the detection unit, a warning is given when the left and right tilt of the observer's head is equal to or greater than a predetermined threshold. It is characterized by emanating.

According to the present invention, as will be described in the following embodiments, when a three-dimensional image is worn with the three-dimensional image observation glasses of the present invention and a viewer's head is tilted more than a predetermined level, a warning unit is provided. Can prevent the fusion failure of the three-dimensional image easily.

In addition, by providing warning parts on the left and right and operating any one of the warning parts according to the left and right tilt directions, the observer can easily know the tilt direction of his / her head and easily correct the tilt. It becomes.

Further, the warning by the warning unit is performed without being known to other people in the vicinity, and even when a plurality of people observe a three-dimensional image, a warning of a fusion failure of the three-dimensional image is provided without causing trouble to others. Can receive.

It is an example in the case of normal, and is a figure which shows a state in case an observer's head is vertical and the head is not inclined in the horizontal direction. It is an example in the case of normal, and is a figure which shows the image observed in the state of FIG. 1A. It is a figure explaining the state where the observer's head inclined, and is a figure explaining the state where the observer's head is inclined specifically. It is a figure explaining the state where the observer's head inclined, and is a figure showing an image observed in the state of FIG. 2A. It is a block diagram which shows the principal part of the structure of the spectacles for three-dimensional image observation which concerns on 1st Embodiment. It is a perspective view of the glasses for three-dimensional image observation concerning a 1st embodiment. It is a flowchart explaining the warning method to the observer of 1st Embodiment. It is a figure which shows the state of spectacles when an observer's head inclines to the right. It is a figure which shows the state of spectacles when an observer's head inclines to the left. It is a figure which shows the example of a drive of the left and right vibrator with respect to the inclination direction of the glasses for three-dimensional image observation. It is a block diagram which shows the principal part of the structure of the spectacles for three-dimensional image observation which concerns on 2nd Embodiment. It is a perspective view of the glasses for three-dimensional image observation concerning a 2nd embodiment. It is a flowchart explaining the warning method to the observer of 2nd Embodiment. It is a figure which shows the state which the object in an image looks blurry. It is a figure which shows the state which can see the object in the image in the case of normal. It is a block diagram which shows the principal part of the structure of the spectacles for three-dimensional image observation which concerns on 3rd Embodiment. It is a perspective view of the glasses for three-dimensional image observation concerning a 3rd embodiment. It is a flowchart explaining the warning method to the observer of 3rd Embodiment. It is a figure which shows the appearance of an image when the transmittance variable element for right eyes and the transmittance variable element for left eyes are in a high transmittance state. It is a figure which shows the appearance of an image when only the transmittance variable element for right eyes is a low transmittance state. It is a figure explaining the modification of 3rd Embodiment, and is a figure which shows the example in which only the upper part and lower part of a screen are affected. It is a figure which shows the example of how it looks in the normal case for the comparison with FIG. 15A. It is a figure explaining the modification of 3rd Embodiment, and is a flowchart explaining the warning method to an observer. It is a figure explaining the modification of 3rd Embodiment, and is a figure which shows an example of the state which a right-eye observation image looks dark. It is a figure explaining the modification of 3rd Embodiment, and is a figure which shows the example in the normal case. It is a figure which shows the structure of a three-dimensional image observation system. It is a figure which shows the structure of the spectacles for three-dimensional image observation used with a three-dimensional image observation system. It is a circuit block diagram of the glasses for three-dimensional image observation used with a three-dimensional image observation system. It is a figure which shows the structure of the display apparatus used with a three-dimensional image exploration system. It is a block diagram of the principal part of the display apparatus which shows the structure of the principal part of a display apparatus, and respond | corresponds to the flow of a signal. It is a flowchart explaining the search method of the three-dimensional image in a three-dimensional image search system.

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

(Embodiment of Measure 1)
FIG. 3 is a block diagram showing a main part of the configuration of the glasses for three-dimensional image observation according to the first embodiment of the present invention. The three-dimensional image observation glasses 1 of the present embodiment are attached to the face when observing a right-eye image and a left-eye image having parallax with each other, and the right-eye image is placed on the right eye of the observer. This is a pair of glasses that guides the left-eye image to the left eye of the observer.

As shown in FIG. 3, the glasses for three-dimensional image observation 1 include a sensor 2 for detecting the left / right inclination of the observer's head, warning means 3 for warning the observer, and a detection result of the sensor 2. The control circuit 4 that drives the warning means 3 is configured when the left / right inclination of the observer's head is equal to or greater than a predetermined threshold. Further, the warning means 3 includes a right vibrator 5 and a left vibrator 6, and as will be described later, the right vibrator 5 is provided in a position located in the vicinity of the observer's right ear, and the left vibrator 6 is provided in the vicinity of the observer's left ear. It is provided in the place located in.

FIG. 4 is a perspective view of the three-dimensional image observation glasses 1 according to the first embodiment. Specifically, the right vibrator 5 is attached to the right temple portion of the 3D image observation glasses 1, and the left vibrator 6 is attached to the left temple portion of the 3D image observation glasses 1. It is done. The three-dimensional image observation glasses 1 issue a warning to the observer by driving the right vibrator 5 or the left vibrator 6.

The sensor 2 is disposed in a so-called bridge portion of the 3D image observation glasses 1, and the control circuit 4 is disposed on the left temple of the 3D image observation glasses 1. Further, a battery 7 is disposed on the right temple of the three-dimensional image observation glasses 1. The sensor 2 and the control circuit 4, and the control circuit 4 and the left and

right vibrators

5 and 6 are connected by a signal line (not shown) provided in the three-dimensional image observation glasses 1. The tilt detection signal is received from. The control circuit 4 outputs a drive signal to the right vibrator 5 or the left vibrator 6 based on the detection signal from the sensor 2.

Further, the battery 7, the control circuit 4, and the left and

right vibrators

5, 6 are connected by a power supply line (not shown), and power is supplied from the battery 7 to the control circuit 4 and the left and

right vibrators

5, 6. .

The sensor 2 is a sensor that detects the left and right inclinations of the glasses for 3D image observation 1 of the present embodiment, and the left and right of the glasses for 3D image observation 1 with the observer wearing the glasses 1 for 3D image observation. Detect the slope of. Therefore, the sensor 2 indirectly detects the left / right inclination of the observer's head. As the sensor 2, for example, an acceleration sensor can be used. In addition to the acceleration sensor, for example, an infrared sensor that detects a plurality of infrared markers attached to the display device and detects the inclination of the glasses for three-dimensional image observation from the detection direction can be used.

Next, a method for warning the observer when the observer's head is tilted left and right using the three-dimensional image observation glasses 1 having the above-described configuration will be described.

FIG. 5 is a flowchart for explaining the warning method for the observer of the present embodiment. FIG. 6 is a diagram illustrating an example of driving the left and

right vibrators

5 and 6 with respect to the tilt direction of the glasses for 3D image observation 1. The driving operation of this embodiment will be specifically described below with reference to both drawings.

First, an observer wears the 3D image observation glasses 1 of this embodiment and observes a 3D image displayed on a display device (not shown). Thereafter, the sensor 2 detects the tilt of the observer's head and transmits a detection signal to the control circuit 4.

The control circuit 4 receives the detection signal transmitted from the sensor 2, and based on this detection signal, determines whether the three-dimensional image observation glasses 1 (observer's head) are tilted over a preset threshold (step). (Hereinafter referred to as S) 1). Here, if the inclination is equal to or less than the threshold value, it is determined whether the observation of the three-dimensional image is finished (S2). If the observer continues to observe the three-dimensional image (S2 is NO), before executing S1. Return and repeat the above process.

On the other hand, if the above monitoring is continued and the head of the observer tilts to the right as shown in FIG. 6A in S1 and the tilt becomes equal to or greater than the threshold, the control circuit 4 sends a drive signal to the right vibrator 5 as the warning means 3. The right vibrator 5 is vibrated (S3). The observer recognizes that the head is tilted to an inappropriate level for the fusion when observing the three-dimensional image to the right by the vibration of the right vibrator 5.

On the other hand, when the observer is observing the three-dimensional image, in S1, for example, the head tilts to the left as shown in FIG. 6B, and when the tilt exceeds a threshold value, the control circuit 4 drives the left vibrator 6 which is the warning means 3. A signal is output and the left vibrator 6 is vibrated (S4). The observer recognizes that the vibration of the left vibrator 6 causes the head to tilt to an extent that is inappropriate for the fusion when observing the three-dimensional image to the left.

Therefore, in any case, the observer can easily know that his / her head is excessively tilted to the right or left by the vibration of the right vibrator 5 or the left vibrator 6, and the head is normal. Returning to the position, it is possible to correct the three-dimensional image so that it can be observed with less eye strain.

FIG. 6C is a tabular view showing the case where the right vibrator 5 vibrates and the case where the left vibrator 6 vibrates depending on the left and right inclinations of the observer's head and the magnitude thereof. For example, when the 3D image observation glasses 1 are tilted to the right and the right temple is positioned lower than the left temple, the right piper 5 disposed in the right temple vibrates, and the left vibrator 6 It does not vibrate (NOP (no operation)). When the 3D image observation glasses 1 are tilted to the left and the left temple is positioned lower than the right temple, the left piper 6 disposed on the left temple vibrates, and the right vibrator 5 Does not vibrate (NOP). When the inclination of the 3D image observation glasses 1 is smaller than the threshold value, neither the vibrator 5 nor 6 vibrates (NOP).

As described above, according to the present embodiment, when the right vibrator 5 or the left vibrator 6 vibrates, the observer moves the three-dimensional image observation glasses 1, that is, his / her head, and the vibrator side that vibrates downward. You can immediately know that it is leaning. Accordingly, the observer can reflect the head tilt so as to raise the vibrated bipre evening side in a reflective manner, thereby correcting the tilt of the head.

In addition, according to the present embodiment, the vibrator warns that the observer's head is excessively tilted to the left and right, making it difficult to fuse the three-dimensional image. it can. Therefore, for example, even when a plurality of people observe a three-dimensional image, it is possible to prevent a fusion failure of the three-dimensional image without causing trouble to others.

Furthermore, since the right vibrator or the left vibrator is selectively operated depending on whether the direction in which the observer's head tilts is left or right, the observer should return the head to which direction, It is possible to know directly and to correct the tilt by a reflective operation.

By reversing the correspondence between the direction of the detected tilt and the vibrating vibration, the 3D image observation glasses 1, that is, the temple on the side where the head is tilted to the left and right and the relative position is up. You may comprise so that the vibrator arranged may be vibrated.

(Second Embodiment)
Next, a second embodiment of the present invention will be described.

The present embodiment relates to optical shutter-type glasses for three-dimensional image observation, and uses a left-eye optical shutter provided in front of the observer's left eye and a right-eye optical shutter provided in front of the right eye as warning means. To do. This will be specifically described below.

FIG. 7 is a block diagram showing a main part of the configuration of the glasses 11 for 3D image observation according to the present embodiment. The three-dimensional image observation glasses 11 of the present embodiment are based on a sensor 12 that detects the right and left tilt of the observer's head, warning means 13 that warns the observer, and a detection result of the sensor 12. When the left / right inclination of the observer's head is greater than or equal to a predetermined value, the control circuit 14 controls the warning means 13. However, unlike the above-described embodiment, the warning means 13 of the present embodiment includes an optical shutter drive circuit 15, a right-eye optical shutter 16a, and a left-eye optical shutter 16b.

FIG. 8 is a perspective view of the three-dimensional image observation glasses 11 of the present embodiment. The sensor 12 is disposed in the bridge portion of the three-dimensional image observation glasses 11 as in the above-described embodiment, and the control circuit 14 is disposed in the left temple of the three-dimensional image observation glasses 11. A battery 17 is disposed on the temple on the right side of the three-dimensional image observation glasses 1. The control circuit 14, the sensor 2, the optical shutter drive circuit 15, and the like are connected by a signal line (not shown) provided in the 3D image observation glasses 11, and the control circuit 14 receives an inclination detection signal from the sensor 12. Receive. The control circuit 14 also sends a control signal to the optical shutter drive circuit 15 based on the detection signal from the tilt sensor 12 to drive the right-eye optical shutter 16a and the left-eye optical shutter 16b.

A power supply line (not shown) is provided from the battery 17 to supply power to the control circuit 14 and the optical shutter drive circuit 15. Note that the sensor 12 is a sensor that detects the left and right inclinations of the three-dimensional image observation glasses 11 as in the above-described embodiment, and the observer observes the three-dimensional image observation while wearing the three-dimensional image observation glasses 11. The left / right inclination of the eyeglasses 11 is detected. Therefore, the sensor 12 indirectly detects the left / right inclination of the observer's head.

Next, a warning method for the observer when the observer's head is tilted left and right using the three-dimensional image observation glasses 11 having the above-described configuration will be described.

FIG. 9 is a flowchart for explaining the warning method for the observer of the present embodiment.

First, an observer wears the three-dimensional image observation glasses 11 of the present embodiment and observes a three-dimensional image displayed on a display device (not shown). Thereafter, the sensor 12 detects the tilt of the observer's head and transmits a detection signal to the control circuit 14. Based on the detection signal transmitted from the sensor 12, the control circuit 14 determines whether the three-dimensional image observation glasses 11 (observer's head) are inclined more than a preset threshold value (step (hereinafter referred to as ST) 1. ).

Here, if the inclination of the three-dimensional image observation glasses 11 is equal to or smaller than the threshold value, the right-eye optical shutter 16a and the left-eye optical shutter 16b are alternately opened and closed to allow the observer to observe the three-dimensional image (ST2). . That is, since the right-eye image and the left-eye image are alternately displayed on the display device, the right-eye optical shutter 16a and the left-eye optical shutter 16b are alternately opened and closed in synchronization with this. Specifically, the right eye optical shutter 16a is opened and the left eye optical shutter 16b is closed when the right eye image is displayed, and the left eye is displayed when the left eye image is displayed. The optical shutter 16b for the right eye is opened and the optical shutter 16a for the right eye is closed. As a result, the right-eye image is guided to the right eye, the left-eye image is guided to the left eye, and the observer is allowed to observe the three-dimensional image.

Thereafter, it is determined whether or not the observation of the three-dimensional image is completed (ST3). If the observer continues to observe the three-dimensional image (NO in ST3), the above process is repeated.

On the other hand, when the above monitoring is continued and it is detected in ST1 that the observer's head is tilted to the left or right and the tilt is equal to or greater than the threshold, the control circuit 14 outputs a drive signal to the optical shutter drive circuit 15. Then, the optical shutter 16a for the right eye and the optical shutter 16b for the left eye are opened (ST4). By this control, both the right eye image and the left eye image are guided to the right eye and the left eye, and the observer observes the right eye image and the left eye image in an overlapping manner.

FIG. 10A is a diagram showing this state, and the

objects

18 and 19 in the image shown in FIG. 10A appear to be separated by a horizontal parallax and appear to be blurred without a three-dimensional effect. The image shown in FIG. 10B is a normal case, and is an example of how the right-eye optical shutter 16a and the left-eye optical shutter 16b are alternately opened and closed. The object has a three-dimensional effect and is observed without difficulty.

Therefore, according to the present embodiment, when the left / right inclination of the observer's head is equal to or greater than the threshold value, the image changes as if the image suddenly fluctuates left / right. Can be recognized. Further, since the above warning is not known to other people around and can be recognized only by an observer, even when a plurality of people observe a 3D image, a warning of a fusion failure of the 3D image without causing trouble to others. Can be obtained.

(Third embodiment)
Next, a third embodiment of the present invention will be described.

The present embodiment relates to glasses for three-dimensional image observation that employs a transmittance variable member positioned in front of at least one eye of an observer as warning means. This will be specifically described below.

FIG. 11 is a block diagram showing a main part of the configuration of the glasses 21 for 3D image observation according to the present embodiment. The three-dimensional image observation glasses 21 of the present embodiment are based on a sensor 22 that detects the left / right inclination of the observer's head, warning means 23 that warns the observer, and a detection result of the sensor 22. When the left / right inclination of the observer's head is greater than or equal to a predetermined value, the observer is composed of a control circuit 24 that controls the warning means 23. However, unlike the above-described two embodiments, the warning means 23 of this embodiment includes a transmittance variable element driving circuit 25, a right eye transmittance variable element 26a, and a left eye transmittance variable element 26b. . As the right-eye transmittance variable element 26a and the left-eye transmittance variable element 26b, for example, a transmissive liquid crystal can be used.

FIG. 12 is a perspective view of the glasses 21 for 3D image observation according to the present embodiment. The sensor 22 is disposed in the bridge portion of the three-dimensional image observation glasses 21 as in the above-described two embodiments, and the control circuit 24 is disposed in the left temple of the three-dimensional image observation glasses 21. A battery 27 is disposed on the temple on the right side of the glasses 21 for observing the three-dimensional image. The sensor 22, the control circuit 24, the transmittance variable element driving circuit 25, and the like are connected by a signal line (not shown) provided in the three-dimensional image observation glasses 21, and the control circuit 24 is tilted from the sensor 22. Upon receiving the detection signal, the control circuit 14 outputs a control signal to the transmittance variable element driving circuit 25 based on the detection signal from the sensor 22.

Further, a power supply line (not shown) is provided from the battery 27, and power is supplied to the control circuit 24 and the transmittance variable element driving circuit 25. The sensor 22 is a sensor for detecting the right and left inclination of the three-dimensional image observation glasses 21 as in the above-described two embodiments, and the three-dimensional image when the observer wears the three-dimensional image observation glasses 21. The left / right inclination of the image observation glasses 21 is detected. Therefore, the sensor 22 detects the left / right inclination of the observer's head.

Next, a warning method for the observer when the observer's head is tilted left and right using the three-dimensional image observation glasses 21 configured as described above will be described.

FIG. 13 is a flowchart for explaining the warning method for the observer of this embodiment.

First, an observer wears the three-dimensional image observation glasses 21 of the present embodiment and observes a three-dimensional image displayed on a display device (not shown). Thereafter, the sensor 22 detects the tilt of the observer's head and transmits a detection signal to the control circuit 24. Based on the detection signal transmitted from the sensor 22, the control circuit 24 determines whether the three-dimensional image observation glasses 21 (observer's head) are tilted by a predetermined threshold or more (step (hereinafter referred to as STP)). 1).

Here, if the inclination of the three-dimensional image observation glasses 21 is equal to or less than the threshold value, the transmittance variable element driving circuit 25 sets the right eye transmittance variable element 26a and the left eye transmittance variable element 26b to the high transmittance state. (STP2). FIG. 14A shows how an image is seen when the right-eye transmittance variable element 26a and the left-eye transmittance variable element 26b are in a high transmittance state. In this case, the viewer perceives it as a bright image as a whole.

Next, it is determined whether the observation of the three-dimensional image is completed (STP3). If the observer continues to observe the three-dimensional image (STP3 is NO), the above process is repeated.

On the other hand, when the above monitoring is continued, for example, when the observer's head tilts to the left or right and the tilt exceeds a threshold value, the control circuit 24 outputs a control signal to the transmittance variable element driving circuit 25 to transmit the right-eye transmission. The variable rate element 26a and the left-eye transmittance variable element 26b are set to a low transmittance state (STP4). This control makes the entire screen appear darker to the observer. FIG. 14B shows the state of the image perceived by the observer at this time.

Therefore, according to the present embodiment, when the left / right inclination of the observer's head becomes equal to or greater than the threshold, the entire image becomes dark, and the observer can recognize that his / her head is inclined more than the threshold. Further, since the above warning is not known to other people around and can be recognized only by an observer, even when a plurality of people observe a 3D image, a warning of a fusion failure of the 3D image without causing trouble to others. Can know.

In the description of the present embodiment, the right-eye transmittance variable element 26a and the left-eye transmittance variable element 26b are provided. However, any one of the transmittance variable elements may be used. In this case, the observer can recognize that a dark image is seen in one eye using either the right-eye transmittance variable element 26a or the left-eye transmittance variable element 26b and the head is greatly inclined. it can.

On the other hand, FIG. 15A is a diagram for explaining a modification example (modification example 1) of the present embodiment, in which the observer's head tilts to the left or right, and the state of the image shown to the observer when the tilt is equal to or greater than a threshold value. Indicates. In this case, only a part of the right eye transmittance variable element 26a and the left eye transmittance variable element 26b is controlled to have a low transmittance or a shielded state. In the case of this modification, only a part of the region is a dark image, and thus the field of view is not completely obstructed even if the transmittance is lowered to the shielding state.

Therefore, for example, in the example shown in FIG. 15A, only the upper part and the lower part of the screen are affected, and a warning can be generated without disturbing the appreciation of the main part of the screen. Note that FIG. 15B shows an example of a normal appearance for comparison.

FIGS. 16 and 17 are diagrams for explaining a further modified example (modified example 2) of the present embodiment. The right eye is selected depending on whether the direction in which the observer's head tilts is left or right. The transmissivity of the transmissivity variable element 26a and the transmissivity element 26b for the left eye is changed.

FIG. 16 is a flowchart for explaining a warning method for an observer of this modification. Also in this case, when the observer wears the 3D image observation glasses 21 of the present embodiment and observes the 3D image displayed on the display device (not shown), the sensor 22 indicates the inclination of the observer's head. The detection signal is transmitted to the control circuit 24. Based on the detection signal transmitted from the sensor 22, the control circuit 24 sets the right-eye transmittance variable element 26 a and the left if the three-dimensional image observation glasses 21 (observer's head) are below a preset threshold value. The ocular transmittance variable element 26b is set to a high transmittance state (STP2), and the above processing is repeated (STP3 is NO).

Thereafter, the above monitoring is continued. For example, when the observer's head is tilted to the right by a threshold value or more, the right eye transmittance variable element 26a is brought into a low transmittance state (STP5). By this control, the left eye observation image appears bright to the observer, but the right eye observation image appears dark. FIG. 17A is a diagram showing this state. FIG. 17B is an example of a normal case.

Conversely, when the observer's head is tilted to the left by a threshold or more, the left-eye transmittance variable element 26b is brought into a low transmittance state (STP6). By this control, the right eye observation image appears bright to the observer, but the left eye observation image appears dark.

Therefore, according to the above-described modification, the right-eye transmittance variable element 26a or the left-eye transmittance variable element 26b that reduces the transmittance depending on the tilting direction of the observer's head is selected. It is possible to intuitively know in which direction the head is inclined.

(Fourth embodiment)
Next, a fourth embodiment of the present invention will be described.

The present embodiment is a display device that displays a right-eye image and a left-eye image that have parallax with each other, and a three-dimensional image observation for observing the three-dimensional image displayed on the display device. The present invention relates to a three-dimensional image observation method in a three-dimensional image observation system using glasses.

FIG. 18 is a diagram showing the configuration of the present system, and the 3D image observation system 30 shown in FIG. 18 includes a 3D image observation glasses 31 and a display device 33. FIG. 19 is a diagram showing the configuration of the three-dimensional image observation glasses 31, which includes the sensor 32, the control circuit 34, the battery 37, and the like as in the first to third embodiments described above. The three-dimensional image observation glasses 31 of this example are provided with a transmission unit 35 for communicating with the display device 32.

FIG. 20 is a circuit block diagram of the glasses 31 for observing the three-dimensional image. As in the first to third embodiments described above, a detection signal from the sensor 32 that detects the tilt of the observer's head is notified to the control circuit 34, and the tilt of the observer's head is equal to or greater than a threshold value. Judge if there is. The transmission unit 35 outputs a control signal to the display device 33 according to the determination result by the control circuit 34.

On the other hand, FIG. 21 is a diagram showing a specific configuration of the display device 33. The display device 33 includes a receiving unit 36, a control circuit 38, a drive circuit 39, a tilt changing mechanism 40, a display unit 41, and the like. Further, the control circuit 38 and the drive circuit 39 are provided inside a pedestal 42, a support column 43 is erected on the pedestal 42, and a tilt changing mechanism 40 is provided on the support column 43.

The display unit 41 is configured to rotate left and right by driving the tilt changing mechanism 40. The display unit tilt detection unit 44 detects the tilt of the display unit 41 and notifies the control circuit 38 of the detection result. FIG. 22 shows the configuration of the main part of the display device 33, and is a block diagram of the main part of the display device 33 corresponding to the signal flow.

Next, a method for observing a three-dimensional image in the three-dimensional image observation system configured as described above will be described. FIG. 23 is a flowchart for explaining the method of searching for a three-dimensional image according to this embodiment.

First, the observer wears the 3D image observation glasses 31 of the present embodiment and observes the 3D image displayed on the display device 33. Thereafter, the sensor 32 detects the tilt of the observer's head and transmits a detection signal to the control circuit 34. Based on the detection signal transmitted from the sensor 32, the control circuit 34 determines whether the three-dimensional image observation glasses 31 (observer's head) are tilted more than a preset threshold value (step (hereinafter denoted by W) 1. ).

Here, if the inclination of the glasses for 3D image observation 31 is equal to or smaller than the threshold value, it is determined whether the observation of the 3D image is completed (W3), and if the observer continues to observe the 3D image (W3 is NO), the above determination is repeated.

Thereafter, the above monitoring is continued. For example, when the observer's head tilts to the left or right, and the tilt exceeds a threshold value, the control circuit 34 outputs a control signal to the transmission unit 35. An instruction to change the tilt of the display unit 41 so that the difference between the tilt of the head and the tilt of the display unit 41 is equal to or less than the threshold value is output to the receiving unit 36 (W2).

When the receiving unit 36 of the display device 33 receives the above instruction, it notifies the control circuit 38. The control circuit 38 outputs a control signal to the drive circuit 39 according to the above instruction, drives the tilt changing mechanism 40 by the drive circuit 39, and rotates the display unit 41 in the direction in which the glasses for three-dimensional image observation 31 tilt.

By this processing, the display unit 41 is rotated in the tilt direction of the glasses 31 for 3D image observation, and the tilt of the display unit 41 is detected by the display unit tilt detection unit 44 described above. The control circuit 38 compares the inclination information of the display unit 41 detected by the display unit inclination detection unit 44 with the inclination information input from the receiving unit 36, and performs control so that the difference between both inclinations falls within the above-described threshold value. .

Therefore, according to the present embodiment, the display unit 41 is rotated so that the difference between the left / right tilt of the observer's head and the left / right tilt of the display unit 41 of the display device 33 is equal to or less than a predetermined threshold. . Thereby, the observer can easily receive a warning that his / her head is tilted left and right by the rotation of the display device 33. Further, since the display unit 41 of the display device 33 tilts following the tilt of the head, the direction of parallax of the display device 33 is dynamically adjusted so that the direction of the line connecting the eyes of the observer matches. The phenomenon that makes fusion difficult is unlikely to occur.

In the present embodiment, the tilt sensor 32 is provided in the three-dimensional image observation glasses 31, but a tilt sensor may be provided on the display device 33 side. For example, an imaging unit is mounted on the display device 33 side, an observer is imaged by the imaging unit, a corresponding portion of the 3D image observation glasses 31 is detected from the imaging screen, and the detected 3D image observation glasses are detected. The inclination of the observer's head may be calculated from the direction of 31.

1, 11, 21, 31 Three-dimensional

image observation glasses

2, 12, 22, 32

Sensors

3, 13, 23 Warning means 4, 14, 24, 34 Control circuit 5 Right vibrator 6

Left vibrator

7, 17, 27 Battery 15 Optical shutter drive circuit 16a Optical shutter for right eye 16b Optical shutter for

left eye

18, 19 Object 25 Transmittance variable element drive circuit 26a Transmittance variable element for right eye 26b Transmittance variable element for left eye 33 Display device 35 Transmitting unit 36 Reception unit 38 Control circuit 39 Drive circuit 40 Tilt changing mechanism 41 Display unit 42 Base 43 Support column 44 Display unit tilt detection unit

Claims

Weared on the face when observing a right-eye image and a left-eye image having parallax with each other, guiding the right-eye image to the right eye of the observer, and turning the left-eye image to the left eye of the observer Led glasses for 3D image observation,
A detection unit for detecting right and left tilt of the observer's head;
A warning section for warning the observer;
Based on the detection result of the detection unit, when the left and right inclination of the observer's head is greater than or equal to a predetermined value, a control unit that operates the warning unit;
3D image viewing glasses characterized by comprising:
The three-dimensional image observation glasses according to claim 1, wherein the warning section includes a vibrator.
The vibrator is disposed on the right side and the left side of the glasses for three-dimensional image observation, and the control unit is disposed on the right side depending on whether the observer's head tilts left or right. The glasses for three-dimensional image observation according to claim 2, wherein the vibrator and the vibrator disposed on the left side are selectively operated.
The three-dimensional image observation glasses according to claim 3, wherein the vibrator is disposed on a temple of the three-dimensional image observation glasses.
The glasses for three-dimensional image observation are optical shutter types,
The warning unit includes a left-eye optical shutter positioned in front of the observer's left eye and a right-eye optical shutter positioned in front of the right eye,
The control unit opens both the left-eye optical shutter and the right-eye optical shutter when the left-right inclination of the observer's head is greater than or equal to a predetermined value;
The three-dimensional image observation glasses according to claim 1.
The warning unit includes a transmittance variable member positioned in front of at least one eye of the observer,
The control unit changes the transmittance of the transmittance variable member when the left and right inclination of the observer's head is greater than or equal to a predetermined value.
The three-dimensional image observation glasses according to claim 1.
The control unit sets the transmittance variable member to a low transmittance state when the left-right inclination of the observer's head is greater than or equal to a predetermined value, and otherwise sets the transmittance variable member to a high transmittance state. The glasses for three-dimensional image observation according to claim 6, wherein the eyeglasses for observation are as follows.
When the left / right inclination of the observer's head is greater than or equal to a predetermined value, the control unit sets only a part of the region of the transmittance variable member to low transmittance or shielding, and sets other regions to a high transmittance state. The glasses for three-dimensional image observation according to claim 6, wherein in all other cases, the transmittance variable member is brought into a state of high transmittance over the entire surface.
When the left-right inclination of the observer's head is greater than or equal to a predetermined value, the control unit sets only the transmittance variable member positioned in front of one eye of the observer to a low-speed excess rate or a shielding state. The three-dimensional image observation glasses according to claim 6.
The transmittance variable member has a left eye transmittance variable member positioned in front of the left eye of the observer and a right eye transmittance variable member positioned in front of the right eye,
The control unit selects a transmittance variable member that changes the transmittance from the left-eye transmittance variable member and the right-eye transmittance variable member depending on whether the observer's head tilts to the left or right. ,
The three-dimensional image observation glasses according to claim 6.
A display device for displaying a right-eye image and a left-eye image having parallax with each other;
An inclination changing mechanism for changing the right and left inclination of the display device;
A three-dimensional image that is worn on the face of the observer when the observer observes the three-dimensional image, guides the right-eye image to the right eye of the observer, and guides the left-eye image to the left eye of the observer. Eyeglasses for image observation;
A detection unit for detecting right and left tilt of the observer's head;
Based on the detection result of the detection unit, the display device beside the tilt changer so that the difference between the left / right tilt of the observer's head and the left / right tilt of the display device is equal to or less than a predetermined threshold. A control unit for changing the right and left inclination of
A three-dimensional image observation system comprising:
The right eye image is guided to the viewer's right eye, and the left eye image is applied to the viewer's left eye. 3D image observation method when using 3D image observation glasses for guiding,
The left and right inclination of the observer's head is detected by a detection unit,
Based on the detection result of the detection unit, a warning is issued when the left and right tilt of the observer's head is greater than or equal to a predetermined threshold,
A three-dimensional image observation method that specializes in this.
The warning selectively selects a vibrator arranged on the right side and a vibrator arranged on the left side of the glasses for observing the three-dimensional image, depending on whether the direction in which the observer's head tilts is left or right. The three-dimensional image observation method according to claim 12, further comprising:
The three-dimensional image observation method according to claim 12, wherein the warning includes changing a transmittance of a transmittance variable member positioned in front of at least one eye of the observer.
A three-dimensional image having a right-eye image and a left-eye image displayed on the display device and having a parallax with each other is attached to the face of the observer, and the right-eye image is guided to the right eye of the observer, and the left A three-dimensional image observation method for observing using an eye image to the left eye of the observer using three-dimensional image observation glasses;
The left and right inclination of the observer's head is detected by a detection unit,
Based on the detection result of the detection unit, the left / right inclination of the display device is changed so that the difference between the left / right inclination of the observer's head and the left / right inclination of the display device is equal to or less than a predetermined threshold. Causing the tilt change mechanism to change the left and right tilt of the display device,
A three-dimensional image observation method with a special pardon.