JP2021177587A - Omnidirectional video display device, display method thereof, and omnidirectional video display system - Google Patents

Abstract

To provide an omnidirectional video display device that reduces a video processing time without hindering viewing by a device for displaying a video, and allows a viewer to view 360-degree spatial video up, down, left, and right at once in any position, and an omnidirectional video display method and an omnidirectional video display system.SOLUTION: A video output screen 130 is arranged on at least the bottom surface of an inner wall surface, and a video output screen 130 outputs a captured image on the inner wall surface facing the direction opposite to the imaging direction, and the image captured by a projector 120 from the outside of the viewing space is displayed on a screen 110 on the inner wall surface facing the direction opposite to the imaging direction.SELECTED DRAWING: Figure 1

Description

The present invention relates to an omnidirectional image display device, an omnidirectional image display method, and an omnidirectional image display system, particularly an omnidirectional image display device for displaying an omnidirectional image in space, an omnidirectional image display method, and an omnidirectional image. Regarding the display system.

Generally, 2016 is said to be the first year of VR (Virtual Reality), and various VR contents are produced. In recent years, SNS (Social Networking Service) has also developed spherical cameras capable of capturing 360 degrees up, down, left and right as a single spatial image (see, for example, Patent Document 1).

In addition, spherical cameras generate omnidirectional image data by synthesizing image data captured by multiple cameras including fisheye lenses, so when the focal distances and illuminances of cameras pointed in different directions are different. In some cases, the image quality may be deteriorated when the image data is adjusted, or shadows may be generated at the boundary portion between the two image data to be combined and the two images may not be compatible with each other.

Therefore, even when image data captured by a plurality of cameras with significantly different imaging environments are combined to generate spherical image data, deterioration of image quality and shadows generated at the combined boundary can be suppressed. A spherical camera has been developed (see, for example, Patent Document 2).

Further, in order to display a spatial image captured by a wide-area camera such as the above-mentioned spherical camera or fisheye lens, a projection type image display device for projecting an image on a dome-shaped screen has been developed (for example, a patent document). 3).

Specifically, the image display device disclosed in Patent Document 3 includes a dome-shaped screen, a support that rotatably supports the dome-shaped screen around a horizontal axis, a projector, a display control device, and a chair on which a viewer sits. And have. As a result, the vertical field of view can be expanded by rotating the dome-shaped screen around the horizontal axis.

Japanese Unexamined Patent Publication No. 2016-40870 Japanese Unexamined Patent Publication No. 2018-182698 Japanese Unexamined Patent Publication No. 2015-143872

However, in the dome-shaped screen disclosed in Patent Document 3, a 360-degree vertical and horizontal spatial image captured by an omnidirectional camera as disclosed in Patent Document 1 is captured by the dome-shaped screen disclosed in Patent Document 2. There was a problem that it could not be displayed at once.

Specifically, since the dome-shaped screen disclosed in Patent Document 3 has a hemispherical dome shape, the display area that can be displayed at one time is a 360-degree spatial image captured by an omnidirectional camera. Only about half of.

For example, when the zenith of the dome-shaped screen is located on the viewer's head side, the screen does not exist at the viewer's feet, and the image of the feet side of the captured 360-degree up, down, left, and right spatial images is displayed. I can't.

In order to display the foot side of the viewer, it is necessary to rotate the dome-shaped screen around the horizontal axis, but it takes time to rotate the dome-shaped screen. With this, the viewer cannot freely view the spatial image of 360 degrees up, down, left and right.

Further, the dome-shaped screen disclosed in Patent Document 3 has a problem that the viewer cannot view the image at a free position in the space.
For example, if the viewer does not sit in the seat and watches at any position in the space, and the viewer gets in between the projector and the dome-shaped screen, the shadow of the viewer will be reflected in the projected image. It ends up. Therefore, the position where the viewer can watch is limited.

Further, depending on the viewing position of the viewer, the projector may be located between the viewer and the dome-shaped screen. In this case, the projector interferes with the viewer's viewing of the video. Therefore, the listener cannot view the image at a free position in the space.

Therefore, instead of displaying the image projected by the projector on the screen so that shadows are not displayed or the projector does not get in the way, the image is displayed on the LCD (Liquid Crystal Display) display or LED (Light Emitting Diode) display. It is also possible to do.

However, a structure in which an LCD display or an LED display is formed in a dome shape and an image is displayed on the dome shape display has a problem that the construction cost is high because the structure is special.

Further, as described above, the spherical camera needs to synthesize image data captured by a plurality of cameras including a fisheye lens. For this reason, there is a problem that the captured image cannot be displayed in real time because it is necessary to combine the images and suppress the deterioration of the image quality of the combined image and the shadow generated at the combined boundary portion. ..

The present invention has been made in view of such a point, and a device for displaying an image does not hinder viewing, and a viewer can view a spatial image of 360 degrees vertically and horizontally at a free position at a time. An object of the present invention is to provide an omnidirectional image display device, an omnidirectional image display method, and an omnidirectional image display system in which the image processing time is further reduced.

In the present invention, in order to solve the above problem, an image in which a plurality of imaging directions are imaged so as to image in all the vertical and horizontal directions of the imaging point is imaged on an inner wall surface forming a viewing space provided separately from the imaging point. In an omnidirectional image display device that displays the image, an image output screen that is arranged on at least the bottom surface of the inner wall surface and outputs the captured image on the inner wall surface that faces the direction opposite to the imaging direction. Provided is an omnidirectional image display device characterized in that the inner wall surface facing the direction facing the imaging direction is provided with a screen on which the captured image projected by a projector from the outside of the viewing space is displayed. NS.

As a result, the video output screen is arranged on at least the bottom surface of the inner wall surface, and the video output screen outputs the captured image on the inner wall surface facing the direction facing the imaging direction, and the inner wall surface facing the direction facing the imaging direction. In addition, the captured image projected by the projector from the outside of the viewing space is displayed on the screen.

Further, in the present invention, an image captured in a plurality of imaging directions so as to image in all the vertical and horizontal directions of the imaging point is displayed on an inner wall surface forming a viewing space provided separately from the imaging point. In the omnidirectional video display method, a step of arranging a video output screen on at least the bottom surface of the inner wall surface and outputting the captured video to the inner wall surface facing the direction facing the imaging direction. An omnidirectional image display method comprising a step of displaying the captured image projected by a projector from the outside of the viewing space on a screen on the inner wall surface facing the direction facing the imaging direction.

As a result, the video output screen is arranged on at least the bottom surface of the inner wall surface, and the video output screen outputs the captured image on the inner wall surface facing the direction facing the imaging direction, and the inner wall surface facing the direction facing the imaging direction. In addition, the captured image projected by the projector from the outside of the viewing space is displayed on the screen.

Further, in the present invention, an image captured in a plurality of imaging directions so as to image in all the vertical and horizontal directions of the imaging point is displayed on an inner wall surface forming a viewing space provided separately from the imaging point. In an omnidirectional image display system, an imaging unit having an imaging means for imaging images in all directions in the vertical and horizontal directions of the imaging point, an imaging unit including a housing accommodating the imaging means, and outside the imaging region imaged by the imaging means. An omnidirectional image pickup device including a support means for supporting the image pickup unit from the structure in a certain blind spot region, and the inner wall surface arranged on at least the bottom surface of the inner wall surface and facing a direction facing the image pickup direction. A video output screen on which the captured image is output and a screen on which the captured image projected by a projector from the outside of the viewing space is displayed on the inner wall surface facing the direction facing the imaging direction. An omnidirectional video display system is provided, which comprises an omnidirectional video display device.

As a result, in the omnidirectional imaging device, in the imaging unit, the imaging means included in the imaging unit captures an image in all directions in the vertical and horizontal directions of the imaging point, and the housing included in the imaging unit accommodates the imaging means and supports the means. Then, the support means supports the image pickup unit from the structure in the blind spot area outside the image pickup area to be imaged by the image pickup means, and in the omnidirectional image display device, the image output screen is arranged at least on the bottom surface of the inner wall surface and the image pickup direction. The image output screen outputs the captured image on the inner wall surface facing the direction facing the image, and the image captured by the projector from the outside of the viewing space is displayed on the screen on the inner wall surface facing the direction facing the imaging direction. Will be done.

According to the omnidirectional video display device, the omnidirectional video display method, and the omnidirectional video display system of the present invention, the video output screen is arranged on at least the bottom surface of the inner wall surface, and the inner wall surface faces the direction opposite to the imaging direction. , The captured image is output by the video output screen, and the captured image projected by the projector from the outside of the viewing space is displayed on the screen on the inner wall surface facing the direction opposite to the imaging direction. There is.

The image output screen arranged including the bottom surface outputs the image to the inner wall surface facing the direction facing the imaging direction, and the image projected by the projector from the outside of the viewing space faces the direction facing the imaging direction. Since it is displayed on the screen of the above, there is no device for displaying the image in the viewing space, and the image can be viewed at any position in the viewing space without hindering the viewing of the image.

In addition, the video output screen outputs the video to the inner wall surface facing the direction opposite to the imaging direction, and the image projected by the projector from the outside of the viewing space is projected onto the screen of the inner wall surface facing the direction facing the imaging direction. Therefore, the image can be output or projected as it is, and the image processing time for processing the image can be reduced.

It is a perspective view which shows the image display device which concerns on 1st Embodiment. It is a top view and the side view which shows the omnidirectional image pickup apparatus which is an example of an image pickup apparatus. It is a perspective view which shows the image display device which concerns on 2nd Embodiment. It is a perspective view which shows the state which the omnidirectional image pickup apparatus which is an example of an image pickup apparatus images a narrow space. It is a perspective view which shows the detail in the left side direction of the viewing space in the image display device which concerns on 3rd Embodiment. It is a perspective view which shows the image display device which concerns on 4th Embodiment. It is a front view which shows the configuration example of the video output screen arranged in a part of a viewing space.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[First Embodiment]
FIG. 1 is a perspective view showing a video display device according to the first embodiment.

The image display device 100 of the first embodiment outputs a corresponding plane image in the front direction, the back direction, the right side direction, the left side direction, the top surface direction, and the bottom surface direction in the space of the rectangular body shape, for example, to form the rectangular body shape. The following will be described as an example of displaying an image in all directions to a viewer in a viewing space within the space.

As shown in FIG. 1, the image display device 100 includes a screen 110, a projector 120, and an image output screen 130.
The screen 110 is a rectangular flat image provided in the front direction (screen 110F), the back direction (screen 110B), the right side direction (screen 110R), the left side direction (screen 110L), and the top surface direction (screen 110U) in the viewing space. It is a projection screen for projection.

The screen 110F, the screen 110B, the screen 110R, the screen 110L, and the screen 110U are assembled in a box shape excluding the bottom surface direction.
Further, the screen 110 transmits light projected from the outside of the viewing space formed by the screen 110F, the screen 110B, the screen 110R, the screen 110L, and the screen 110U to the inside of the viewing space, and allows the viewer to pass through the inside of the viewing space. It is a rear screen for letting you watch the video.

As the screen 110, it is desirable to use a screen having low transparency so that the device installed outside the viewing space cannot be seen by the viewer inside the viewing space. The size of the screen 110 is formed according to the aspect ratio of the projected image.

The projector 120 is for projecting light for displaying a corresponding image from the outside of the viewing space toward the screen 110F, the screen 110B, the screen 110R, the screen 110L, and the screen 110U.

Specifically, the projector 120F with respect to the screen 110F, the projector 120B with respect to the screen 110B, the projector 120R with respect to the screen 110R, the projector 120L with respect to the screen 110L, and the screen 110U with respect to the screen 110L. The projector 120U projects light for displaying a flat image from the outside of the viewing space toward each screen 110.

Taking the projector 120L projected on the screen 110L as an example, the projector 120L projects light for displaying a flat image toward the screen 110L from the outside of the screen 110L.

At this time, the projector 120L appropriately adjusts the projection distance and the projection angle so that the flat image to be projected is displayed on the screen 110L without any margin. Similarly, the projector 120B, the projector 120R, the projector 120L, and the projector 120U are installed outside the viewing space toward each screen 110.

The flat image projected by the projector 120 is a flat image imaged in the direction in which the screen 110 is installed by the omnidirectional image pickup device 200 (not shown here), and these are the front direction, the back direction, the right side direction, and the left side. Plane images captured in the direction and in the top surface direction are projected onto the corresponding screens 110.

As a result, the flat image captured by the omnidirectional imaging device 200 is displayed on the screen 110 as it is on the screen 110F, the screen 110B, the screen 110R, the screen 110L, and the screen 110U, so that the flat image is distorted. Processing is not required, and the acquired image can be projected on the screen 110 in real time.

Further, since the projector 120 projects a flat image from the outside of the viewing space toward the screen 110, even if the viewer stands in front of the image inside the viewing space, the shadow of the viewer may appear on the screen 110. No.

The video output screen 130 is a display device for displaying a rectangular flat video provided in the viewing space in the bottom direction direction. Examples of the video output screen 130 include an LCD display and an LED display.

The video output screen 130 is a rectangular display device, and is arranged in a shape that closes the bottom surface of the box formed by the screen 110F, the screen 110B, the screen 110R, the screen 110L, and the screen 110U.

Since the image output screen 130 is a thin display device that emits light for displaying an image by itself, a projector is installed outside the screen 110 so that a projector 120 is installed to display a flat image on the screen 110. There is no need to install 120. Therefore, in the direction of the bottom surface of the viewing space, it is sufficient to arrange the video output screen 130, and the workability is good.

The image displayed on the image output screen 130 is a flat image imaged toward the bottom surface of the viewing space by an omnidirectional image pickup device 200 (not shown here), and is a flat image imaged toward the bottom surface. Is displayed on the video output screen 130.

As a result, even if the viewer stands on the video output screen 130, the video output screen 130 displays the video, so that the video is not easily affected by the shadow of the viewer and the video on the video output screen 130 is hindered. Can be provided to viewers without.

As described above, in the image display device 100 of the present embodiment, the direction in which the projector 120 corresponds from the outside of the screen 110 arranged in the front direction, the back direction, the right side direction, the left side direction, and the top surface direction of the viewing space. The flat image of the above is projected toward the screen 110, and the image output screen 130 arranged in the bottom direction of the viewing space displays the flat image in the bottom direction, so that the viewer views the image in all directions in the viewing space. be able to.

Further, since the projector 120 is not installed in the viewing space, the projector 120 can view the video in all directions at a free position in the viewing space without hindering the viewer from viewing the video.

Further, as the image projected on the screen 110, the viewer views the flat image projected from the outside in the viewing space of the screen 110 inside the viewing space, so that the shadow of the viewer appears on the screen 110. It is possible to provide the image to the viewer without disturbing the image.

Further, since the video output screen 130 arranged in the bottom direction in the viewing space displays the video in the bottom direction, it is not easily affected by the shadow of the viewer, and the viewer is not hindered by the video output screen 130. Can be provided to.

Further, since the image displayed by the screen 110 and the image output screen 130 is a flat image taken by the omnidirectional image pickup device 200 (not shown here) toward the bottom surface of the viewing space, special image processing is performed. The captured flat image can be displayed as it is without any problem. Therefore, the image processing time can be remarkably reduced, and the image captured by the omnidirectional image pickup apparatus 200 can be output in real time.

Although the image display device 100 of the present embodiment has been described with a configuration in which corresponding plane images are output in the front direction, the back direction, the right side direction, the left side direction, the top surface direction, and the bottom surface direction in a rectangular space. In addition to this, a polyhedral viewing space is formed by increasing or decreasing the shape and quantity of the screen 110 or the video output screen 130, and images in all directions are displayed to the viewer inside the formed polyhedral viewing space. It can also be provided.

Further, in a viewing space such as the video display device 100 of the present embodiment, firefighting information and emergency lighting obtained by the government are required, but one of the video output screens 130 forming the viewing space The video output screen 130 of the unit can also be used as an emergency lighting device that emits light in an emergency. At this time, power is supplied to the video output screen 130 used as emergency lighting equipment by an emergency power source.

Further, it is also possible to provide an automatic expansion / contraction device that projects a part of the video output screen 130 toward the viewing space side as emergency lighting in an emergency according to the illuminance of the viewing space. As a result, the image can be displayed on a flat surface when viewing the image, and can be used as emergency lighting in an emergency.

In the present embodiment, the video display device 100 of the present embodiment arranges the video output screen 130 in the bottom direction in the rectangular space, and arranges the video output screen 130 in the front direction, the back direction, the right side direction, the left side direction, and the top surface direction. A projector 120 provided outside the viewing space projected the image toward the viewing space on the screen 110 arranged in the viewing space, but the projector 120 was provided in the viewing space as long as it did not interfere with the viewing by the viewer in the viewing space. The projector 120 may project an image on the screen 110.

FIG. 2 is a top view and a side view showing an omnidirectional image pickup device which is an example of an image pickup device.
As shown in FIG. 2, the omnidirectional image pickup device 200, which is an example of the image pickup device, includes an image pickup unit 210 for imaging in all directions around the image and a support means 220 for supporting the image pickup unit 210 at a specific position. There is.

Here, an example will be described in which the omnidirectional image pickup device 200 is installed in the rectangular parallelepiped room 300, and the inside of the room 300 is imaged in all directions from the omnidirectional image pickup device 200 installed in the room 300.

The image pickup means 211 is, for example, a video camera including an image sensor 211A and a wide-angle lens 211B, and is set so that the angle of view line G imaged by the image pickup means 211 intersects the corner portion K of the room 300.

The imaging means 211 is directed in the front direction, the back direction, the right side direction, the left side direction, the top surface direction, and the bottom surface direction in the housing 212 so that the angle of view line G of each imaging means 211 intersects the corner portion K of the room 300. By setting to, it is possible to image in all directions in the room 300.

Specifically, as shown in the top view of FIG. 2, the image pickup means 211-1 included in the image pickup unit 210 is installed facing the right side of the room 300, and the image pickup means 211-1 is installed in the horizontal direction of the room. Imaging can be performed in the imaging region from the corner K1 to the corner K2 of 300 and the imaging region from the corner K5 to the corner K6.

Further, as shown in the side view A of FIG. 2, the imaging means 211-1 directed to the right side vertically extends the imaging region from the corners K1 to K5 of the room 300 and the corners K2 to the corners. Imaging can be performed in the imaging region up to K6.

As a result, the imaging means 211-1 included in the imaging unit 210 is installed so as to face the right side of the room 300, so that imaging can be performed in the imaging regions of the corners K1, K2, K5, and K6 of the room 300. ..

Similarly, as shown in the top view of FIG. 2, the image pickup means 211-2 included in the image pickup unit 210 is installed facing the back side of the room 300, and the image pickup means 211-2 is horizontally arranged in the room 300. Imaging can be performed in the imaging region from the corner K1 to the corner K3 and the imaging region from the corner K5 to the corner K6.

Further, as shown in the side view B of FIG. 2, the image pickup means 211-2 directed in the rear direction vertically extends the image pickup region from the corners K1 to K5 of the room 300 and the corners K3 to the corners K3. Imaging can be performed in the imaging region up to K7.

As a result, the imaging means 211-2 included in the imaging unit 210 is installed so as to face the back direction of the room 300, so that imaging can be performed in the imaging regions of the corners K1, K3, K5, and K7 of the room 300. ..

The support means 220 is, for example, a wire having sufficient strength to support the image pickup unit 210, and each of the support means 220 is formed on the upper surface portion of the corresponding image pickup unit 210 starting from the corners K1, K2, K3, and K4 of the room 300. It is combined.

The coupling point between the support means 220 and the image pickup unit 210 is provided in a blind spot area of the image pickup region to be imaged by each of the image pickup means 211 of the image pickup unit 210. As a result, the support means 220 is not imaged by the image pickup means 211.

Specifically, the intersection of the angle-of-view line G of the imaging means 211-1 directed to the right side of the room 300 and the angle-of-view line G of the imaging means 211-2 directed to the back side of the room 300 is the room. It becomes the corners K1 and K5 of 300.

As shown in the top view of FIG. 2, a blind spot region (imaging means 211-1, K1, imaging means 211-2) that is not imaged by the imaging means 211-1 and the imaging means 211-2 is started from the corner K1 of the room 300. ), And the support means 220 is coupled to the image pickup unit 210.

As a result, the support means 220 is arranged in the blind spot region (imaging means 211-1, K1, imaging means 211-2) of the imaging means 211-1 and the imaging means 211-2, so that the imaging means 211-1 and the imaging means Not imaged by 211-2.

Similarly, the support means 220 starting from the corner K2 of the room 300 is a blind spot region of the image pickup means 211-1 directed to the right side and the image pickup means 211-4 directed to the front direction (imaging means 211-1). , K2, imaging means 211-4).

Further, the support means 220 starting from the corner K3 of the room 300 is a blind spot region of the image pickup means 211-2 directed to the rear direction and the image pickup means 211-3 directed to the left side (imaging means 211-2, K3, arranged in the imaging means 211-3).

Further, the support means 220 starting from the corner K3 of the room 300 is a blind spot region of the image pickup means 211-3 directed to the left side and the image pickup means 211-4 directed to the front direction (imaging means 211-3, K4, arranged in the imaging means 211-4).

As described above, in the omnidirectional imaging apparatus 200, the imaging means 211 included in the imaging unit 210 images the front direction, the back direction, the right side direction, the left side direction, the top surface direction, and the bottom surface direction, and the imaging unit 210 is imaged by the imaging means 211. It is supported by the supporting means 220 arranged in the blind spot region of the above.

According to the omnidirectional imaging device 200, the imaging unit 210 can image in all directions without including the support means 220 in the imaging region.
In the omnidirectional image pickup device 200, since the image pickup unit 210 can take an image in all directions without using a fisheye lens, it is not necessary to perform image processing for processing a bent image into a flat surface. In addition, the viewer does not feel uncomfortable due to distortion of the image or video due to the barrel aberration of the fisheye lens.

Further, since the support means 220 is not included in the imaging region, it is not necessary to perform image processing such as removing the support means 220 from the captured image. Further, since the image pickup unit 210 is supported by the support means 220, the operator is not imaged by the image pickup unit 210.

As described above, in the omnidirectional imaging apparatus 200, the image processing time can be reduced without reflecting the support of the camera or the operator of the camera. Therefore, the image captured by the image pickup unit 210 can be output as it is by the image display device 100 without requiring a high-spec GPU or CPU.

As a result, the delay due to the image processing is reduced, so that the image captured by the omnidirectional imaging device 200 can be output by the image display device 100 in real time and can be viewed by the viewer.

In the omnidirectional image pickup apparatus 200 described here, an example in which the support means 220 is supported by four wires has been described, but the number of support means is not particularly limited as long as the image pickup unit 210 can be stably supported. ..

Further, the supporting means 220 can not only be supported by a wire, but can also support the coupled image pickup unit 210 starting from one or two corners with, for example, a strong iron rod.

Further, by arranging the communication cable for transferring the image captured by the imaging unit 210 in the same blind spot area as the supporting means 220, the communication cable is not imaged by the imaging unit 210 as in the supporting means 220. The direction can be imaged. In addition to this, the image captured by the imaging unit 210 may be transferred using wireless communication means.

[Second Embodiment]
Next, a second embodiment of the present invention will be described. The image display device of the present embodiment is substantially the same as the configuration shown in the first embodiment except that the projection area projected by the projector is different. Therefore, the same components as those in the first embodiment will be designated by the same reference numerals, and the description thereof will be omitted as appropriate.

FIG. 3 is a perspective view showing the image display device according to the second embodiment.
The image display device 100 of the second embodiment outputs a corresponding image in the front direction, the back direction, the right side direction, the left side direction, the top surface direction, and the bottom surface direction in the square body shape space, for example, in the square body shape space. The following will be described as an example of displaying an image in all directions to a viewer in the viewing space inside.

As shown in FIG. 3, the image display device 100 includes a screen 110, a projector 120, and an image output screen 130.
The screen 110 projects a rectangular image provided in the front direction (screen 110F), the back direction (screen 110B), the right side direction (screen 110R), the left side direction (screen 110L), and the top surface direction (screen 110U) in the viewing space. It is a projection screen for.

The projector 120 is for projecting light for displaying a corresponding image from the outside of the viewing space toward the screen 110F, the screen 110B, the screen 110R, the screen 110L, and the screen 110U.

In the image display device 100 of the present embodiment, one screen 110 is divided in the horizontal direction and projected onto the divided projection area by a plurality of projectors 120, and here, 2 with respect to the screen 110L. A case where projection is performed by the projector 120L1 and the projector 120L2 will be described as an example.

First, the screen 110L is horizontally divided into a projection area 110L1 and a projection area 110L2, and the projector 120L1 and the projector 120L2 corresponding to the divided projection area 110L1 and the projection area 110L2 project an image.

Specifically, the projector 120L1 projects a flat image corresponding to the projection area 110L1 in the left-side plane image according to the projection area 110L1, and the projector 120L2 in the left-side direction image according to the projection area 110L2. A flat image corresponding to the projection area 110L2 is projected.

As a result, the projector 120L1 and the projector 120L2 project a flat image in the left direction onto the screen 110L, and the viewer can view the flat image in the left direction projected on the screen 110L inside the viewing space. ..

In the present embodiment, one screen 110L is divided into two projection areas, but one screen 110L is further divided into three or more projection areas, and the divided projection areas are divided by three or more projectors 120. It can also be projected.

Further, a plurality of screens 110L are connected in the rear direction of the viewing space, the plurality of screens 110L connected in the rear direction are divided into a plurality of projection areas, and the divided plurality of projection areas are projected by the plurality of projectors 120. You can also do it.

In the present embodiment, the example of dividing the projection area of the screen 110L has been described, but in addition to this, each screen 110 in which the projection area of the screen 110F, the screen 110B, the screen 110R, or the screen 110U is divided or connected to a plurality of parts is described. It is also possible to divide the projection area of the above into a plurality of projection areas and project the plurality of divided projection areas with a plurality of projectors 120.

As described above, in the image display device 100 of the present embodiment, the projection area of the screen 110 can be divided into a plurality of parts, and the projection area divided into the plurality of parts can be projected by the plurality of projectors 120. Viewers can view images taken in such a narrow space in all directions in the viewing space.

FIG. 4 is a perspective view showing a state in which an omnidirectional image pickup device, which is an example of an image pickup device, images a narrow space.
As shown in FIG. 4, the omnidirectional imaging device 200, which is an example of the imaging device, has a plurality of imaging units 210 for imaging in all directions inside a narrow space, and supports each imaging unit 210 at a specific position. The support means 220 is provided.

Here, an example will be described in which the omnidirectional image pickup device 200 is installed in the tunnel 310 which is a narrow space, and the omnidirectional image pickup device 200 installed in the tunnel 310 images in all directions inside the tunnel 310.

The omnidirectional image pickup apparatus 200 is installed at predetermined intervals in the tunnel 310 formed from the left side to the right side in FIG. 4, and the image pickup unit 210 is suspended from the wall surface in the tunnel 310 by the support means 220 at predetermined intervals. ing.

An omnidirectional imaging device 200A is installed at the left entrance of the tunnel 310, and an imaging region of the imaging means 211 directed to the left side of the omnidirectional imaging device 200A is installed in an imaging region where the left entrance of the tunnel 310 can be imaged. ..

Further, the omnidirectional image pickup device 200B is installed on the right side of the omnidirectional image pickup device 200A, that is, on the inner side of the tunnel 310. At this time, the imaging region of the imaging means 211 directed to the back side, the upper surface side, the front side, and the bottom side of the omnidirectional imaging device 200A and the back side of the imaging means 211 directed to the left side of the omnidirectional imaging device 200B. , The image pickup area of the image pickup means 211 directed to the top surface side, the front surface side, and the bottom surface side is installed so as not to overlap.

At the starting point of the support means 220 provided at the intersection of the angle lines G, the starting point of the support means 220 on the right back side of the omnidirectional image pickup device 200A and the support means 220 on the left back side of the omnidirectional image pickup device 200B. The omnidirectional imaging device so that the starting points overlap, and the starting point of the supporting means 220 on the right front side of the omnidirectional imaging device 200A and the starting point of the supporting means 220 on the left front side of the omnidirectional imaging device 200B overlap. It is advisable to install 200A and an omnidirectional imaging device 200B.

As a result, the imaging regions of the omnidirectional imaging device 200A and the omnidirectional imaging device 200B do not overlap, and the imaging regions of the omnidirectional imaging device 200A and the omnidirectional imaging device 200A are in close contact with each other, so that the entire inside of the tunnel 310 is imaged. be able to.

Similar to the omnidirectional imaging device 200B, after the omnidirectional imaging device 200C, the respective omnidirectional imaging devices 200 are installed at positions where the adjacent omnidirectional imaging device 200 and the imaging area do not overlap and the imaging areas are close to each other. ..

An omnidirectional imaging device 200Z is installed at the right exit of the tunnel 310, and an imaging region of the imaging means 211 directed to the right side of the omnidirectional imaging device 200A is installed in an imaging region where the right exit of the tunnel 310 can be imaged. ..

As described above, even in a narrow space such as a tunnel 310, by installing a plurality of omnidirectional image pickup devices 200 in the narrow space, an omnidirectional image pickup device 200 captures an image in all directions inside the narrow space. The image display device 100 can output the image in the tunnel 310.

In the case of the omnidirectional image pickup device 200 described here, for example, the image pickup means 211 and the entrance or exit of the tunnel 310 directed toward the inside of the tunnel 310 of the omnidirectional image pickup device 200 installed at the entrance or exit of the tunnel 310. Except The imaging means 211 directed to the left side and the right side of the omnidirectional imaging device 200 installed inside may be omitted because it is not necessary when outputting an image.

[Third Embodiment]
Next, a third embodiment of the present invention will be described. The image display device of the present embodiment is substantially the same as the configuration shown in the first and second embodiments, except that the projection area projected by the projector and the projection method are different. Therefore, the same components as those of the first and second embodiments will be designated by the same reference numerals, and the description thereof will be omitted as appropriate.

FIG. 5 is a perspective view showing details of the viewing space in the left side direction of the video display device according to the third embodiment.
The image display device 100 of the third embodiment outputs a corresponding image in the front direction, the back direction, the right side direction, the left side direction, the top surface direction, and the bottom surface direction in the square body shape space, for example, in the square body shape space. The following will be described as an example of displaying an image in all directions to a viewer in the viewing space inside.

As shown in FIG. 5, the image display device 100 includes a screen 110, a projector 120, and an image output screen 130.
The screen 110 projects a rectangular image provided in the front direction (screen 110F), the back direction (screen 110B), the right side direction (screen 110R), the left side direction (screen 110L), and the top surface direction (screen 110U) in the viewing space. It is a projection screen for.

The projector 120 is for projecting light for displaying a corresponding image from the outside of the viewing space toward the screen 110F, the screen 110B, the screen 110R, the screen 110L, and the screen 110U.

In the image display device 100 of the present embodiment, one screen 110 is vertically divided and projected onto the divided projection area by a plurality of projectors 120, and here, 2 with respect to the screen 110L. A case where projection is performed by the projector 120L3 and the projector 120L4 will be described as an example.

First, the screen 110L is vertically divided into a projection area 110L3 and a projection area 110L4, and the projector 120L3 and the projector 120L4 corresponding to the divided projection area 110L3 and the projection area 110L4 project an image.

In the image display device 100 of the second embodiment, the projector 120L1 and the projector 120L2 project the image toward the projection area 110L1 and the projection area 110L2, but in the image display device 100 of the third embodiment, the projector 120L3 and the projector 120L2 The image projected by the projector 120L4 is projected in the vertical direction, and the projected light is reflected by the reflecting means 120M and projected onto the divided projection areas 110L3 and 110L4.

Specifically, a reflecting means 120M3 such as a mirror, glass, or metal is installed so that the image projected vertically by the projector 120L3 is reflected in accordance with the projection area 110L3, and the image reflected by the reflecting means 120M3 is projected. It is projected onto the area 110L3.

Further, the reflecting means 120M4 is installed so that the image projected by the projector 120L4 in the vertical direction is reflected in accordance with the projection area 110L4, and the image reflected by the reflecting means 120M4 is projected on the projection area 110L4.

As a result, the projector 120L3 and the projector 120L4 project a flat image in the left direction onto the screen 110L, and the viewer can view the flat image in the left direction projected on the screen 110L inside the viewing space. ..

The reflecting means 120M is supported by the supporting means 121 installed outside the reflecting means 120M. As a result, the support means 121 does not interfere with the reflection of the image by the reflection means 120M.

As a result, the projection distance can be significantly shortened as compared with the case where the projector 120 is projected in the horizontal direction. Further, since the projection angle can be adjusted by the installation angle of the reflection means 120M, the installation area of the projector 120 installed outside the viewing space can be reduced, and the limited space resources can be effectively utilized.

In the present embodiment, one screen 110L is vertically divided into two projection areas, but one screen 110L is further divided into three or more projection areas, and the divided projection areas are projected into three or more projection areas. It can also be projected by the machine 120 and three or more reflecting means 120M.

Further, a plurality of screens 110L are connected in the upper surface direction of the viewing space, a plurality of screens 110L connected in the upper surface direction are divided into a plurality of projection areas, and the divided plurality of projection areas are divided into a plurality of projectors 120 and a plurality of projectors 120. It can also be projected by the reflecting means 120M.

In the present embodiment, the projection area of the screen 110L is divided in the vertical direction, but in addition to this, the projection area of the screen 110F, the screen 110B, the screen 110R, or the screen 110U is divided into a plurality of vertically. Alternatively, the projection area of each of the connected screens 110 can be vertically divided into a plurality of projection areas, and the plurality of vertically divided projection areas can be projected by the plurality of projectors 120.

As described above, in the image display device 100 of the present embodiment, the projection area of the screen 110 is vertically divided into a plurality of projection areas, and the projection area divided into a plurality of vertical directions is divided into a plurality of projectors 120 and a plurality of reflections. Since it can be projected by the means 120M, the viewer can view the image in all directions taken in the space such as the inside of the chimney in the viewing space.

Further, since the projection distance can be shortened by reflecting the image projected by the projector 120 in the vertical direction by the reflecting means 120M and projecting it on the screen 110 in the horizontal direction, the installation of the image display device 100 is limited. The viewing space can be maximized in the space.

In the image display device 100 of the present embodiment, the projection area of the screen 110 is divided into a plurality of vertically, and the projection area divided into a plurality of vertically is divided by the plurality of projectors 120 and the plurality of reflecting means 120M. As described in the example of projection, one projector 120 can be arranged in parallel with one screen 110, and the image reflected by the reflecting means 120M can be projected on the screen 110. As a result, the limited space resources can be effectively utilized.

[Fourth Embodiment]
Next, a fourth embodiment of the present invention will be described. The image display device of the present embodiment is substantially the same as the configuration shown in the first embodiment except that the arrangement of the projector and the image output screen is different. Therefore, the same components as those in the first embodiment will be designated by the same reference numerals, and the description thereof will be omitted as appropriate.

FIG. 6 is a perspective view showing the image display device according to the fourth embodiment.
The image display device 100 of the fourth embodiment outputs a corresponding image in the front direction, the back direction, the right side direction, the left side direction, the top surface direction, and the bottom surface direction in the square body shape space, for example, in the square body shape space. The following will be described as an example of displaying an image in all directions to a viewer in the viewing space inside.

As shown in FIG. 6, the image display device 100 includes a screen 110, a projector 120, and an image output screen 130.
The screen 110 is a projection curtain for projecting rectangular images provided in the front direction (screen 110F), the back direction (screen 110B), the left side direction (screen 110L), and the top surface direction (screen 110U) in the viewing space.
The screen 110F, the screen 110B, the screen 110L, and the screen 110U are assembled in a box shape excluding the bottom surface direction and the right side direction.

The video output screen 130 is a display device for displaying a rectangular flat video provided in the bottom surface direction and the right side direction in the viewing space. Examples of the video output screen 130 include an LCD display and an LED display.

The video output screen 130 is a rectangular display device, which is a video output screen 130S that closes the bottom surface of the box formed by the screen 110F, the screen 110B, the screen 110L, and the screen 110U, and a video output screen 130R that closes the right side surface. It is composed.

As described above, by arranging the video output screen 130 on the floor side of the viewing space and the right side which is a part of the side surface and displaying the video in the corresponding direction, the video in all directions can be displayed in the viewing space. Not only can it be viewed, but it is also possible to view a video that is viewed on a flat screen such as a movie, and a high-quality video such as an LCD display or an LED display that is the video output screen 130.

In the video display device 100 of the present embodiment, the video output screen 130 is arranged in the bottom side direction and the right side side direction, but in addition to this, the video is displayed on a plurality of other surfaces including the bottom side constituting the viewing space. The output screen 130 can also be arranged.

Further, on the inner front surface of the image output screen 130, an optical diffraction grating having a three-dimensional effect of diffracting the angle of incident light and the angle of emitted light to change the path of light and making the depth of the image felt by interference is installed. You can also do it. As a result, the image display device 100 can provide not only images in all directions but also stereoscopic images.

FIG. 7 is a front view showing a configuration example of a video output screen arranged in a part of the viewing space.
As shown in FIG. 7, the video output screen 130 is composed of a plurality of LED lines 131 in which extremely fine LED elements composed of the three primary colors of light, red, green, and blue (RGB), are connected on a line. LED display.

The LED lines 131 are arranged in parallel with a predetermined gap S in the horizontal direction. As a result, air passes through the gap S formed between the LED line 131 and the LED line 131, so that the heat generated when the LED line 131 emits light can be dissipated.

Therefore, by arranging the video output screen 130 on the video display device 100, it is possible to prevent heat from being trapped in the viewing space, and it is possible to improve the viewing environment in the closed viewing space.

Further, by forming a gap S between the LED line 131 and the LED line 131, an acoustic reproduction device 132 for emitting sound according to the image, for example, a speaker, is arranged outside the image output screen 130, and all of them are arranged. It is possible to output a directional image and also provide a sound effect.

Further, by arranging the sound reproduction device 132 outside the image output screen 130, the sound reproduction device 132 is not installed in the viewing space, so that the sound reproduction device 132 can be viewed without hindering the viewer from viewing the image. You can watch images in all directions at any position in the space. Further, when the image is projected by the projector 120, the shadow of the sound reproduction device 132 is not reflected on the screen 110.

Further, by forming the gap S between the LED line 131 and the LED line 131, the viewing space is not a completely closed space, so that the reflectance of sound can be suppressed and howling can be prevented. ..

Further, the video output screen 130 can be not only the sound reproduction device 132 arranged outside the video output screen 130, but also a vibration speaker 133 that emits sound by vibrating a plurality of LED lines 131.

As a result, in the video display device 100, the vibrating speaker 133 vibrates the video output screen 130 arranged in the viewing space to reproduce the sound according to the video, so that the entire video output screen 130 emits sound. , It is possible to provide a powerful sound to the viewer in the viewing space.

Further, as the sound reproduction device 132 and the vibration speaker 133, a directional speaker that emits sound in a specific range in the viewing space can also be used. As a result, the viewer can watch at a free position in the viewing space, and a specific sound can be provided to the specific viewer.

As a specific example of using directional speakers, a plurality of directional speakers provide sound for each language toward a specific range in a viewing space separated by each language. .. As a result, the viewer can view the video in the audio in the language he / she uses by simply moving to the range in which the audio in a specific language is provided.

In addition, by pointing the directional speaker at a specific viewer moving in the viewing space and emitting sound, it is possible to provide sound according to the position of each viewer, which enhances the viewer's sense of presence. It is possible to provide a directing effect.

100 Video display device 110, 110B, 110F, 110L, 110R, 110U screen 110L1, 110L2, 110L3, 110L4 Projection area 120, 120B, 120F, 120L, 120L1, 120L2, 120L3, 120L4, 120R, 120U projector 120M, 120M3, 120M4 Reflecting means 121, 220 Supporting means 130, 130R, 130S Video output screen 131 LED line 132 Sound reproduction device 133 Vibration speaker 200, 200A, 200B, 200C, 200Z Omnidirectional imaging device 210 Imaging unit 211, 211-1, 211- 2, 211-3, 211-4 Imaging means 211A Image sensor 211B Wide-angle lens 212 Housing 300 Room 310 Tunnel G Angle of view K, K1, K2, K3, K4, K5, K6, K7 Corner S Gap

Claims (12)

In an omnidirectional image display device that displays images captured in a plurality of imaging directions so as to image in all directions of the imaging points on an inner wall surface forming a viewing space provided separately from the imaging points. ,
A video output screen that is arranged on at least the bottom surface of the inner wall surface and outputs the captured image on the inner wall surface that faces the direction facing the imaging direction.
A screen on which the captured image projected by a projector from the outside of the viewing space is displayed on the inner wall surface facing the direction facing the imaging direction.
An omnidirectional video display device characterized by being equipped with. The screen is
An image captured in one imaging direction is divided and captured by a plurality of projectors.
The omnidirectional image display device according to claim 1. A reflecting means that reflects an image projected by the projector toward the screen.
The omnidirectional image display device according to claim 1, wherein the omnidirectional image display device is provided. The projector
Projecting the captured image along the display surface of the screen,
The omnidirectional image display device according to claim 3. The video output screen is an LED display.
An LED line in which LED elements composed of at least red, green, and blue are connected on a line, and
A gap formed between each of the LED lines arranged in the same direction plane, and a gap formed between the plurality of LED lines.
The omnidirectional image display device according to claim 1, wherein the omnidirectional image display device is provided. An acoustic reproduction device that is arranged outside the LED display and emits sound that matches the image.
The omnidirectional image display device according to claim 5, wherein the omnidirectional image display device is provided. The sound reproduction device is
A vibrating speaker that vibrates the LED display to emit sound that matches the image.
The omnidirectional image display device according to claim 6. The sound reproduction device is
Being a directional speaker that emits sound in a specific range in the viewing space,
The omnidirectional image display device according to claim 6. An optical diffraction grating that is arranged on the inner surface of the video output screen and has a three-dimensional effect that changes the light path of the video output by the video output screen to give the viewer of the video a sense of depth.
The omnidirectional image display device according to claim 1, wherein the omnidirectional image display device is provided. The captured image, the image output by the image output screen, and the image displayed on the screen are
Being a flat image,
The omnidirectional image display device according to claim 1. In an omnidirectional image display method in which an image captured in a plurality of imaging directions so as to image in all directions of an imaging point is displayed on an inner wall surface forming a viewing space provided separately from the imaging point. ,
A step of arranging a video output screen on at least the bottom surface of the inner wall surface and outputting the captured video to the inner wall surface facing the direction facing the imaging direction.
A step of displaying the captured image projected by a projector from the outside of the viewing space on the screen on the inner wall surface facing the direction facing the imaging direction.
An omnidirectional video display method characterized by providing. An image obtained by imaging a plurality of imaging directions so as to image all the vertical and horizontal directions of an imaging point in a structure having a space formed inside is imaged on an inner wall surface forming a viewing space provided separately from the imaging point. In an omnidirectional video display system that displays video,
An imaging unit having an imaging means for capturing images in all directions of the imaging point, a housing accommodating the imaging means, and the imaging unit in a blind spot region outside the imaging region imaged by the imaging means. An omnidirectional imaging device including a support means for supporting the structure from the structure, and
A video output screen on which the captured image is output and an inner wall surface facing the direction facing the imaging direction on the inner wall surface which is arranged on at least the bottom surface of the inner wall surface and faces the direction facing the imaging direction. An omnidirectional image display device including a screen on which the captured image projected by a projector from the outside of the viewing space is displayed.
An omnidirectional video display system characterized by being equipped with.

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