JP4505559B2 - Distant panel for studio set and studio set using the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a display device for a studio set and a studio set using the same.
[0002]
[Prior art]
In the production of television and movies, there are many cases where a set simulating the real thing is made in a studio, and then a video camera is used for shooting. For example, in an indoor set, a background photographic panel is pasted on a window portion so that it looks as if the scenery outside the window is desired. Such a photographic panel is sometimes called a far vision panel.
[0003]
[Problems to be solved by the invention]
Recent improvements in video camera technology and display technology have made it possible to obtain high-definition images. In particular, the demand for high-definition video is expected to increase with the spread of high-definition broadcasting in BS digital broadcasting and the like.
[0004]
However, such improvements in hardware technology provide high-definition video, but the subject is projected more clearly. Therefore, when shooting with a studio set, the difference in quality is clearly reflected, and there is a problem that the viewer is informed that it is a fake (simulated product). .
[0005]
In particular, in the conventional far-sight panel, there is a problem that when the original photograph is stretched, the grain becomes coarse or the seam is conspicuous, so that it becomes apparent at first glance. In addition, the conventional far-sight panel used a photographic panel, so it cannot produce a dynamic background such as tree branches swaying in the wind or traffic flow in the city, and it is flat. I had to limit the camera work of the video camera. Furthermore, in the conventional far-sighted panel, when the shooting scene is switched from day to night in accordance with the change of time in the drama, the photo panel has to be bothered, which is very complicated.
[0006]
Accordingly, an object of the present invention is to provide a new far-sight panel (studio set panel) that produces a realistic background, and a studio set using the same, instead of the conventional photographic panel used in the studio set.
[0007]
By the way, when an LED display device or the like is used as a new distant panel instead of the conventional photographic panel, a moire (interference fringe) M as shown in FIG. 6 is generated in an image taken by a video camera. There is a problem that it may end up. That is, the cause of such moire is that a subject A having a pattern in which light and dark are arranged at equal intervals as shown in FIG. 7A is connected to an image pickup device (CCD) of a video camera via a lens. In the case of being imaged, there is a difference between areas where the bright portions of the subject A are imaged on the respective image sensors, and as a result, there is a difference between the output levels of the image sensors. That is, the image B1 is almost entirely formed on the image sensor C1, while the image B2 is almost half of the entire image sensor C2, and the image B3 is hardly imaged on the image sensor C3. Therefore, even if the subject A having one brightness is photographed, the actual output level of the image sensor varies as D1, D2, and D3. If the fluctuation of the output level is continuously observed, it becomes a wave shape as shown in FIG. 6B, and the entire screen is observed as a moire pattern as shown in FIG.
[0008]
Therefore, even if a realistic background is produced by adopting an LED display device as a new distant view panel, if the image captured by the video camera includes moiré, it will be understood to be a product. As a result, there was a problem that it was no longer practical.
[0009]
SUMMARY OF THE INVENTION It is a further object of the present invention to provide a studio set panel in which an image viewed through a video camera is projected as a realistic one.
[0010]
That is, the problem of the present invention is that even when a studio set panel is shot using a video camera capable of shooting a high-definition video, the studio set panel is projected as a more realistic video rather than a simulation. It is to be made.
[0011]
More specifically, an object of the present invention is to provide a studio set panel in which moire is not projected on a video shot by a video camera capable of shooting a high-definition video.
[0012]
[Means for Solving the Problems]
The gist of the present invention is to provide a display device composed of a group of image elements arranged in a grid at a portion corresponding to a window in a studio set, and to display an image for producing the studio set on the display device. Here, the display device preferably has a panel shape, for example, an LED display device or a plasma display device is preferably employed.
[0013]
That is, the present invention provides a display unit that displays an image by a group of image elements arranged in a grid, and a light diffusion member that diffuses incident light provided on an image element surface formed by the image element group. And a display device for a studio set.
[0014]
Here, the light diffusing member is provided with a predetermined gap from the image element surface. Moreover, as a light-diffusion member, a flexible light-diffusion film can be employ | adopted, for example.
[0015]
Moreover, it is preferable that a transparent gap member is provided between the image element surface and the light diffusion member. As this gap member, for example, an acrylic resin plate can be adopted.
[0016]
Further, the present invention is characterized in that, in a studio set having a window-corresponding portion, the display device installed in the window-corresponding portion, and a control means for controlling an image to be displayed on the display device. It is a studio set.
[0017]
The studio set further includes an acquisition unit that acquires information on a positional relationship between the video camera used in the studio set and the display device, and the control unit is information on the positional relationship acquired by the acquisition unit. The video to be displayed is controlled based on the above.
[0018]
In this specification, the term “means” does not simply mean a physical means, but also includes a case where the functions of the means are realized by software. Further, the function of one means may be realized by two or more physical means, or the functions of two or more means may be realized by one physical means.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
[0020]
[First Embodiment]
FIG. 1 is a diagram illustrating an example of a studio set using the studio set display device according to the present embodiment. This studio set directs the interior of a room used for one scene of a drama. Three display devices 1 are respectively embedded in the window-corresponding portion of the wall in the front direction of the room to produce a window. The display device 1 is connected to a display control device (not shown), and can display a full-color video based on a video signal sent from the display control device. The display device 1 displays dynamic images such as tree branches swaying in the wind and traffic flow in the city during shooting. In the present embodiment, a high-definition (for example, pixel pitch 3 mm) full-color LED display panel is used as the display device 1. The display device 1 is composed of, for example, a group of 320 × 192 image elements (LED: L), and the display surface (light emitting surface) of the display device 1 (light emitting surface) does not generate moiré in video captured as described later. The member for doing is provided.
[0021]
FIG. 2 is a partial cross-sectional view of the display surface of the display device 1 according to the present embodiment. As shown in the figure, a number of LEDs 21 are arranged in the display device 1 to form a display surface S. A transparent acrylic resin plate 22 is provided on the display surface S, and a light diffusion film 23 is provided on the acrylic resin plate 22. The acrylic resin plate 22 is for preventing the light diffusion film 23 from being bent and maintaining a certain gap from the display surface S so that the light diffusion film 23 is provided. The acrylic resin plate 22 and the light diffusion film 23 are preferably pressure-bonded so that an air layer is not formed, and are bonded by, for example, a transparent adhesive. The thickness of the acrylic resin plate 22 is preferably about 3 to 6 mm. The light diffusing film 23 is produced, for example, by mixing a surface of a colorless or colored transparent film with a chemical treatment to form a minute uneven surface or impurities (particles) for diffusing light. Transparent film.
[0022]
In this embodiment, since the flexible light diffusing film 23 is used as the light diffusing member, the acrylic resin plate 22 is used as the gap member in order to prevent the bending, but the light diffusing member is hard. For example, as long as it is ground glass, the gap member may be omitted.
[0023]
In the display device 1 configured in this way, the LED emits light in accordance with a video signal output from a display control device (not shown) to reproduce the video. At this time, the light emitted from each of the LED groups passes through the acrylic resin plate 22 and reaches the light diffusion film 23. The light reaching the light diffusion film 23 is diffused here and fused with the light emitted from the adjacent LED.
[0024]
That is, as shown in FIG. 3A, a subject A (image device group of a display device) having a pattern in which light and dark are arranged at equal intervals is imaged on an image pickup device (CCD) of a video camera via a lens. In this case, a light diffusing member (light diffusing member) E is arranged in front of the subject, so that the bright part and the dark part are mixed with each other, so that an image B is formed. The difference in output level can be reduced. That is, the fluctuation range of the output level D when shooting with the video camera is small as shown in FIG. Therefore, by adjusting the light diffusion level, the fluctuation of the output level can be suppressed to such an extent that it can be ignored by human eyes. The adjustment of the light diffusion level can be performed by, for example, the distance between the subject A and the light diffusion member E and / or the material of the light diffusion member E.
[0025]
As described above, according to the present embodiment, since a high-definition display device is used as a far vision panel, it is possible to realize a far vision panel having a sense of reality compared to a conventional photographic panel. In addition, by displaying dynamic images such as tree branches swaying in the wind and traffic flow in the city on the display device 1, it is possible to produce a more realistic feeling and to switch scenes like a photo panel This will save you the trouble of changing the background image.
[0026]
In particular, in the present embodiment, since the display device 1 is provided with the light diffusing member, it is possible to provide a high-quality image without generating moire even for an image captured by a video camera.
[0027]
[Second Embodiment]
The present embodiment is characterized in that the video to be displayed on the display device 1 according to the above embodiment is controlled according to the position (camera angle) of the video camera in the studio set.
[0028]
FIG. 4 is a schematic diagram illustrating the configuration of the studio set according to the present embodiment. As shown in the figure, in the studio set, for example, the interior of a room is produced by a wall 41, and the display device 1 is attached to a part of the wall 41. The video camera 42 shoots a subject with various camera works and records an image on a recording medium such as a video tape. A position sensor 43 is provided in the studio containing the studio set. This position sensor 43 is for measuring the position of the video camera 42, emits infrared rays, for example, toward the video camera 42, and observes the reflected wave. Data observed by the position sensor 43 is input to the position calculation means 44.
[0029]
The position calculation means 44 calculates the position information of the video camera 42 in the studio set based on the observation data sent from each position sensor 43, and sends the calculated position information to the virtual background generation means 45. The virtual background generation unit 45 generates a video to be displayed on the display device 1 from the background data stored in the virtual background data storage unit 46 in accordance with the positional relationship between the video camera 42 and the display device 1, This is sent to the display control means 47. That is, the virtual background plane V is determined based on the position information of the display device 1 given in advance and the position information of the video camera 42 sent from the position information calculation means 44, and the video of the virtual background plane V is determined. Is generated from the background data stored in the virtual background data storage means 46 and sent to the display control means 47 as an image to be displayed on the display device 1. The display control means 47 sends the transmitted video signal to the display device 1.
[0030]
For example, assuming that a window is provided in a studio set, a background seen from the window is assumed as a virtual background plane V. Assuming that the window (display device 1) is photographed from the video camera 42 at the position A, the background (virtual background surface) seen from the window is in the range of V1. Therefore, the background corresponding to V1 is displayed on the display device 1 as an image. Next, if the video camera 42 moves to the position B and shoots the window direction, the virtual background surface moves relative to the range of V2. Accordingly, the display device 1 displays a background corresponding to the virtual background plane V2 as an image while corresponding to the movement of the video camera 42.
[0031]
FIG. 5 is a flowchart for explaining the processing operation of the display control system according to the present embodiment. As shown in the figure, the position calculation means 44 checks whether the video camera 42 has moved based on the observation information from the position sensor 43, that is, whether the position information has changed (S501). Here, when it is determined that the camera position has moved, the position calculation unit 44 calculates the current position information of the video camera based on the observation information (S502). Next, the virtual background plane generation unit 45 obtains background data on the virtual background plane based on the position information of the display device 1 given in advance and the position information of the video camera 42 sent from the position calculation unit 44. Generate (S503). Then, the display control means 47 outputs the generated background data (video signal) to the display device 1 so that the background is displayed on the display device 1 (S504).
[0032]
In the present embodiment, the video to be displayed on the display device 1 is controlled in accordance with the camera work of one video camera, but this is not particular. For example, by switching a plurality of video cameras 42, the video to be displayed on the display device 1 may be controlled according to the position information from the video camera effective at that time.
[0033]
In this embodiment, the position of the video camera 42 is acquired by the position sensor 42. For example, when the video camera 42 provided in the robot arm is used, the position control information of the robot arm is used. You may do it.
[0034]
Furthermore, not only when the position of the video camera 42 changes due to physical movement, but also when the virtual background changes according to camera work such as camera angle change or zoom-up / zoom-in focus change. The video to be displayed may be controlled based on the change information.
[0035]
As described above, according to the present embodiment, since the video to be displayed on the display device 1 is controlled in accordance with the positional relationship between the video camera and the display device 1, shooting with higher reality becomes possible. .
[0036]
[Other Embodiments]
Each of the above embodiments is an example for explaining the present invention, and is not intended to limit the present invention only to these embodiments. The present invention can be implemented in various forms without departing from the gist thereof. For example, although the operation of the function realizing unit has been described sequentially, it is not particularly limited to this. Therefore, as long as no contradiction occurs in the operation, the processing order may be changed or the operations may be performed in parallel.
[0037]
【The invention's effect】
According to the present invention, a new far-sight panel that produces a realistic background and a studio set using the same are provided in place of the conventional photographic panel used in the studio set.
[0038]
Further, according to the present invention, even when a studio set panel (display device) is photographed using a video camera capable of photographing a high-definition video, moire is not projected on the shot video. Therefore, it becomes possible to obtain a high-quality image.
[Brief description of the drawings]
FIG. 1 is a diagram illustrating an example of a studio set using a studio set display device according to the present embodiment.
FIG. 2 is a partial cross-sectional view of a display surface of the display device 1 according to the present embodiment.
FIG. 3 is a diagram for explaining a reason why occurrence of moire in an image is suppressed when a display device according to an embodiment of the present invention is photographed.
FIG. 4 is a schematic diagram illustrating the configuration of a studio set according to the present embodiment.
FIG. 5 is a flowchart for explaining the processing operation of the display control system according to the present embodiment.
FIG. 6 is a diagram for explaining moire generated in an image when a display device is photographed;
FIG. 7 is a diagram for explaining the cause of moire in an image when a display device is photographed.
[Explanation of symbols]
1 ... Display device 21 ... LED
22 ... Acrylic resin plate 23 ... Light diffusion film

Claims (8)

A distant panel used in a studio set,
A display device for displaying an image by a group of image elements arranged in a grid pattern ;
A distant panel , comprising: a light diffusion film provided on an image element surface formed by the image element group for diffusing incident light from the image element group . The distance viewing panel according to claim 1, wherein the light diffusion film is provided with a predetermined gap from the image element surface. The distance panel is
The distance viewing panel according to claim 2 , further comprising a transparent gap member between the image element surface and the light diffusing member. In a studio set with walls ,
A window-corresponding portion provided on the wall surface;
A display device for displaying an image by a group of image elements arranged in a grid, installed in the window equivalent part;
Control means for controlling video to be displayed on the display device ,
The display device includes:
A transparent and rigid gap member provided on the image element surface formed by the image element group;
A studio set comprising: a flexible light diffusion film provided on the gap member for diffusing incident light from the image element group . In a studio set with walls,
A window-corresponding portion provided on the wall surface;
A display device for displaying an image by a group of image elements arranged in a grid, installed in the window equivalent part;
Control means for controlling video to be displayed on the display device;
And a acquisition means for acquiring information on the position relationship between the video camera and the display device used by the studio set,
The control means includes
A studio set for controlling an image to be displayed on the display device based on information on a positional relationship acquired by the acquiring means. 6. The studio set according to claim 5 , wherein the display device includes a light diffusion film for diffusing incident light from the image element group on an image element surface formed by the image element group . 7. The studio set according to claim 6, wherein the light diffusion film is provided with a predetermined gap from the image element surface. The studio set according to claim 7 , wherein the display device further includes a transparent gap member between the image element surface and the light diffusion film .

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