JPH11288036A - Video display method/device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a video display method by which videos variously change and more interest can be given to audiences. SOLUTION: A video display method is constituted of a step for generating an original picture displayed on a screen 11, a step for masking a moving image crossing a fixed image in the original picture with a mask in the similar form as the fixed image and recording it in a recording medium 43, a step for simulating the original picture on the screen 11 with a material containing inorganic fluorescent pigment to emit light with the irradiation of ultraviolet light in a state where the video of the mask is projected on the screen 11 and to become white with the irradiation of visible light, and a step for irradiating the screen 11 where the original picture is simulated with ultraviolet light and projecting the video of the moving image with visible light.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video display method and apparatus used for entertainment, advertisement, learning, interior decoration, and the like.

[0002]

2. Description of the Related Art Video display devices including dynamic elements such as movies, televisions, and computer graphics are widely used as video display methods or devices used for entertainment, advertisement, learning, and the like. Also, there have been proposed a number of video display methods or apparatuses that use a half mirror or a concave mirror to combine a diorama, a still video, and the like with a moving image to achieve a special effect. Further, a technique has been developed in which an inorganic fluorescent pigment that emits ultraviolet light and appears white under visible light and projects a screen on which a pattern is drawn with a visible light source (Japanese Patent Application Laid-Open No. 61-65226, "White Screen and image display method ”).

The above-described image display method using an inorganic fluorescent pigment has high aesthetics because an excitation image by ultraviolet light and a still or moving image by visible light can be obtained.
It has the effect of giving a strong video effect. However, there was still room for improvement in changing the images in various ways, to make the audience more interesting.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an image display method and an image display apparatus capable of giving a variety of changes to an image and giving the audience more interest.

[0005]

The video display method according to the present invention comprises the following steps. (A) First step of preparing an original image to be displayed on a screen (B) Second step of masking a moving image crossing a fixed image in the original image with a mask having the same shape as the fixed image and recording it on a recording medium (C) With the image of the mask projected on the screen,
Third step of copying the original image on a screen using a material containing an inorganic fluorescent pigment that emits light by irradiation with ultraviolet light and becomes white when irradiated with visible light (D) Irradiates ultraviolet light to the screen on which the original image is copied And a fourth step of projecting an image of the recording medium with visible light. The image display device of the present invention is fixed with a material containing an inorganic fluorescent pigment that emits light when irradiated with ultraviolet light and becomes white when irradiated with visible light. A screen on which an image is drawn, an ultraviolet irradiation device that irradiates the screen, and an image projector that projects an image including a moving image onto the screen using a visible light source,
In a video display device having a playback device connected to a video projector, a moving image crossing a fixed image on the screen is masked with a mask having the same shape as the fixed image and recorded on a recording medium to be played back by the playback device. Have been.

In the video display method and apparatus described above, the portion of the moving image that overlaps the fixed image becomes invisible as the moving image moves, so that the viewer sees the moving image hidden behind the fixed image. For this reason, the video looks close to reality, and the audience can be given more interest.

In the above image display method, the second
In the step, a moving image that crosses the fixed image in the original image without being masked may be recorded on the recording medium. By recording in this way, the audience sees the moving image as passing by the fixed image in accordance with the movement.

In the video recording method of the second step, the masked moving image may be unmasked at a later time and recorded on the recording medium so as to cross the fixed image in the opposite direction. . By recording in this way, the moving image looks as if it has gone around the fixed image. Further, in this video recording method, the masked moving image may be recorded on a recording medium smaller than the masked moving image. By recording in this way, the size of the moving image when going around the back of the fixed image appears to be smaller than the size when it is in front of the fixed image. Therefore, the moving image when going around the back of the fixed image appears to be more distant than when passing in front of the fixed image, giving the audience a greater sense of reality.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of the entire video display device of the present invention. The video display device mainly includes a screen 11, an ultraviolet irradiation device 21, a video projector 31, and a playback device 41.
The screen 11 has a fixed image, for example, a rock 16 under the sea,
The ruined temple pillars 17, pots, jewelry boxes 18, seaweed, coral 19, etc. are depicted. In the present invention, objects, figures, patterns, symbols, and characters are fixed images.

The screen 11 is composed of a substrate 12 made of a plastic plate, a synthetic plate, or a metal plate. The substrate 12 is attached to a frame, a wall surface of a building (neither is shown), or the like. The surface of the substrate 12, that is, the surface 13 of the screen 11, is colored white or a color close to white. The color close to white is light gray, blue, yellow, or the like, and is colored at such a density that the image projected on the screen 11 can be clearly identified. On the surface 13 of the screen 11, a fixed image, that is, a rock 1 is made of a material containing an inorganic fluorescent pigment.
6 and pillars 17 are drawn. The inorganic fluorescent pigment emits light when irradiated with ultraviolet light, and turns white when irradiated with visible light. Inorganic fluorescent pigments include, for example, Y ₂ O ₃ : Eu, YVO ₄ : Eu, Y ₂ O ₂ S:
Eu, Y ₂ O ₂ S: Eu, Sm, 0.5MgF _2.
3.5MgO.GeO ₂ : Mn or the like is used. Further, ZnS: Cu, A is used as a green light emitting inorganic phosphor.
1, (Zn, Cd) S: Cu, Al, ZnS: C
u, Au, Al, 3 (Ba, Mg) O · 8Al
₂ O ₃ : Eu, Mn, Zn ₂ GeO ₄ : Mn and the like are used. Further, ZnS: A is used as a blue light emitting phosphor.
g, CaWO ₄ , Sr ₂ P ₂ O ₇ : Eu, 3 (B
_{a, Mg) O · 8Al 2} O 3: Eu , or the like is used.
One or more of these inorganic phosphors are mixed to form an inorganic fluorescent pigment. A normal color pigment or an organic color pigment may be added to the inorganic fluorescent pigment. Plain color pigments are visible under visible light and do not emit under ultraviolet light. The organic phosphor pigment emits the same color under visible light and ultraviolet light.

The ultraviolet irradiation device 21 has a tubular ultraviolet lamp (black light) 22 disposed in front of and above the screen 11 along the screen surface. The wavelength of the ultraviolet light emitted from the ultraviolet lamp 22 is 300 to 405.
nm.

The image projector 31 has a screen 11
, And a plurality of units may be provided depending on the size of the screen 11 and the image to be projected. As the image projector 31, a liquid crystal projector, a three-tube projector, or the like is used.

The playback device 41 has a recording medium 43 on which an image to be projected on the screen 11 is recorded. Recording medium 43
For example, a video disk or a video tape is used. The recording method may be either an analog method or a digital method. As the reproducing device 41, for example, a video tape player, a laser disk player, a DVD player, or the like is used.

The size of the rocks 16 and pillars 17 drawn on the screen 11 are adjusted by adjusting the size, shade of color, shadow, and the like.
It is drawn so as to give a sense of distance between the background 15 or the rock 16 or the pillar 17 adjacent to the front and rear. The moving image in the image projected on the screen 11 by the image projector 31, that is, the portion of the fish 45 overlapping the rock 16 and the pillar 17 is the fish 4
The information is recorded on the recording medium 43 of the reproducing device 41 so as to become invisible with the movement of No. 5. Or rock 16 or pillar 1
7 is recorded so that the portion overlapping the fish 45 becomes invisible as the fish 45 moves. Fish 45, Rock 1
The portion overlapping with the fish 7 or the pillar 17 disappears with the movement of the fish 45, and the portion of the rock 16 or the pillar 17 overlapping with the fish 45 appearing after a while is recorded on the recording medium 43 so as to become invisible as the fish 45 moves. I have. The above time is approximately the time when the fish 45 passes behind the rock 17. Therefore, since the fish 45 passes behind the rock 16 and appears again in front of the rock 45 to the spectator A, it looks as if the fish 45 has made a round of the rock 16. In this case, if the fish 45 that is invisible due to overlapping with the rock 16 or the pillar 17 is recorded smaller than the fish 45 that appears after a while, and projected, a higher sense of reality can be obtained.

Referring to FIGS. 2 and 3, a description will be given of a method of recording the above-described image on the recording medium 43 of the reproducing device 41. FIG. First, an original picture to be drawn on the screen 11 is precisely created. The part where the fish 45 crosses in the original picture, rock 1
6 and pillar 17 are taken into a computer by a scanner. FIG. 2A shows an image on a computer monitor of Pg.
Is shown. Then, rock 16 and pillar 1 on the computer
Trace the outline of No. 7 and fill the inside of the outline with black. The background other than the black rock 16B and the pillar 17B is white, and FIG.
A mask image Pm shown in FIG. The created mask image Pm on the computer is taken into a video tape to create a mask image Vm. On the other hand, the fish 45 is photographed by a video camera on a black background, and a moving image Va is created. Then, the mask image Vm and the moving image image Va (fish 4
5) are synthesized using an editing machine as shown in FIG. Along with this composite video, the video of the moving image with the mask removed is also recorded on the recording medium 43 of the playback device 41. The moving image to be masked is appropriately selected in consideration of the effect of the image. The editing machine may be either of an analog type or a digital type. Further, a computer provided with a video compression / decompression board and incorporating editing software may be used. The composite video edited by the computer is temporarily stored in a storage device (for example, a disk array) and recorded on a video tape or the like. When a computer is used as the editing machine, the mask image Pm may be directly synthesized with the moving image video Va without being captured on a video tape or the like. After editing, audio may be recorded along with the video.

FIG. 3 shows a part of an image synthesized as described above. Mask image Vm and moving image V
3 (a), the portion 46o overlapping the pillar 17 of the fish 46 is not visible as shown in FIG. 3 (a).
In the video with the mask removed as described above, the fish 46
As shown in FIG. 3 (b), when the image of the fish 46 turns to the front, the image of the fish 46 does not disappear even if the two images overlap. As a result, as shown in FIG.
It appears to turn behind 7 and flip over to cross just before pillar 17.

In the above description, image processing is performed by a computer to create a mask image Pm of a rock or a pillar. Instead of this, as shown in FIG.
, 17c on a blank sheet, and its outline 16c,
The inside of 17c may be painted black to create a monochrome mask image. The mask image may be monochrome in which black and white are reversed. Also, a composite image of the mask and the moving image can be produced by computer graphics.

FIG. 5 shows a screen 1 made of a material containing an inorganic fluorescent pigment while projecting the image created as described above.
FIG. 1 shows a situation where the original image is enlarged and copied. An image of the masked rock 16 or pillar 17 captured by a video camera is projected onto the screen 11, and the contour of the rock 16 or pillar 17 is copied onto the screen 11. At this time, the image projector 31 is set to a predetermined position, and the projection conditions such as the projection direction and the magnification of the image are adjusted, so that the size and position of the projected rock 16 and pillar 17 are the same as the actual projection. (See FIG. 5A). With the ultraviolet lamp 22 turned on, a picture is drawn with a material containing an inorganic fluorescent pigment in accordance with the contour of the rock 16 or the pillar 17 with reference to the original picture (see FIG. 5B). Then, the image that combines the image of the mask (rocks and pillars) and the image of the fish described above is projected on a screen in the middle of painting, and the fine lines of the rocks and pillars where fish are hidden are adjusted. . In addition, the brightness and color tone of the fluorescent pigment are adjusted for rocks and pillars overlapping the fish. Normal,
The rocks and pillars that overlap the fish reduce the brightness of the fluorescent pigments so that the image is clearly visible. If the luminance of the fluorescent pigment is high, the image superimposed on that portion may not be visible due to the luminance of the fluorescent pigment, or may look translucent.

The synthesized image is projected on a screen on which the picture has been completed under dim lighting. The audience will see the video in which the picture on the screen and the projected video are combined, and the audience will have more interest.

A projector, a slide projector, or the like may be combined with the above-described apparatus, or an image captured by a TV camera may be projected in real time. In addition, a model, a prop, or the like may be arranged between the screen and the audience.

[0021]

According to the present invention, the moving image or the fixed image at the portion where the moving image and the fixed image overlap with each other becomes invisible as the moving image moves, so that the viewer can hide the moving image behind the fixed image, Alternatively, it looks as if it passes before the fixed image, and the image changes in various ways. For this reason, since the video looks closer to the real thing to the audience, the interest of the audience can be further enhanced.

[Brief description of the drawings]

FIG. 1 is a perspective view of a video display device of the present invention.

FIG. 2 is a diagram illustrating a method for creating a composite image of a mask image of a fixed image and an image including a moving image.

FIG. 3 is a view showing a state in which a moving image changes with movement in a composite image.

FIG. 4 is a view for explaining another method for creating a mask image of a fixed image.

FIG. 5 is a view showing a step of drawing a picture on a screen.

[Explanation of symbols]

 Reference Signs List 11 screen 16 fixed image (rock) 17 fixed image (pillar) 21 ultraviolet irradiation device 22 ultraviolet lamp 31 video projector 41 reproducing device 43 recording medium 45 moving image (fish) A spectator

Continued on the front page (72) Masami Ikeda 1-8-9 Tsukiji, Chuo-ku, Tokyo Inside Dentsu Tech Co., Ltd. (72) Keiko Yamaguchi 1-8-9 Tsukiji Chuo-ku, Tokyo Inside Dentsu Tech Co., Ltd. (72) Inventor Kenji Kuwata 5-23-18 Kamima, Setagaya-ku, Tokyo (72) Inventor Masahiro Hojo 1311-1-726 Taiocho, Kohoku-ku, Yokohama-shi, Kanagawa

Claims (3)

[Claims] 1. An image display method comprising the following steps. (A) First step of preparing an original image to be displayed on a screen (B) Second step of masking a moving image crossing a fixed image in the original image with a mask having the same shape as the fixed image and recording it on a recording medium (C) With the image of the mask projected on the screen,
Third step of copying the original image onto a screen using a material containing an inorganic fluorescent pigment that emits light by irradiation with ultraviolet light and becomes white upon irradiation with visible light (D) Irradiates ultraviolet light to the screen on which the original image is copied And a fourth step of projecting an image on the recording medium with visible light 2. The video display method according to claim 1, wherein, in the second step, an unmasked moving image that crosses the fixed image in the original image is further recorded on the recording medium. 3. A screen on which a fixed image is drawn with a material containing an inorganic fluorescent pigment which emits light upon irradiation with ultraviolet light and becomes white upon irradiation with visible light, an ultraviolet irradiation device for irradiating the screen, and a moving image In a video display device comprising a video projector for projecting a video onto a screen by a visible light source and a playback device connected to the video projector, a moving image traversing a fixed image in the screen on a recording medium played by the playback device. Is recorded by masking with a mask having the same shape as the fixed image.