WO2006027855A1 - 表示装置及び撮像装置 - Google Patents
表示装置及び撮像装置 Download PDFInfo
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- WO2006027855A1 WO2006027855A1 PCT/JP2004/013582 JP2004013582W WO2006027855A1 WO 2006027855 A1 WO2006027855 A1 WO 2006027855A1 JP 2004013582 W JP2004013582 W JP 2004013582W WO 2006027855 A1 WO2006027855 A1 WO 2006027855A1
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- Prior art keywords
- mirror
- image
- screen
- display device
- imaging
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B37/00—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/50—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images the image being built up from image elements distributed over a 3D volume, e.g. voxels
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F19/00—Advertising or display means not otherwise provided for
- G09F19/12—Advertising or display means not otherwise provided for using special optical effects
- G09F19/14—Advertising or display means not otherwise provided for using special optical effects displaying different signs depending upon the view-point of the observer
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F19/00—Advertising or display means not otherwise provided for
- G09F19/12—Advertising or display means not otherwise provided for using special optical effects
- G09F19/16—Advertising or display means not otherwise provided for using special optical effects involving the use of mirrors
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F19/00—Advertising or display means not otherwise provided for
- G09F19/12—Advertising or display means not otherwise provided for using special optical effects
- G09F19/18—Advertising or display means not otherwise provided for using special optical effects involving the use of optical projection means, e.g. projection of images on clouds
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/349—Multi-view displays for displaying three or more geometrical viewpoints without viewer tracking
- H04N13/351—Multi-view displays for displaying three or more geometrical viewpoints without viewer tracking for displaying simultaneously
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/363—Image reproducers using image projection screens
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/366—Image reproducers using viewer tracking
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/388—Volumetric displays, i.e. systems where the image is built up from picture elements distributed through a volume
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/20—Image signal generators
- H04N13/204—Image signal generators using stereoscopic image cameras
- H04N13/243—Image signal generators using stereoscopic image cameras using three or more 2D image sensors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/20—Image signal generators
- H04N13/286—Image signal generators having separate monoscopic and stereoscopic modes
Definitions
- the present invention relates to a display device and an imaging device that display an image corresponding to a viewing direction from the periphery of a stereoscopic screen.
- a display device that displays a stereoscopic image using a rotating screen.
- two-dimensional image data of this object is created from the three-dimensional image data representing the three-dimensional object when the object is viewed from each direction around it.
- hidden surface removal processing is performed to erase the data of the invisible part), which is projected in turn on the rotating screen, but the orientation of the screen by the rotation is Along with the change, the two-dimensional image projected onto this will be changed sequentially. According to this, if you look at this screen from a certain point, the image displayed on it changes gradually by making this screen rotate faster.
- the projected image on the screen can be seen as a three-dimensional image with a visual afterimage effect (for example, see Japanese Patent Application Laid-Open No. 2000-0105-1 0 3 5 1 5 No. publication).
- the display object is shot from different viewpoints to create slide images, and each time the rotating screen faces these viewpoints, the slide image obtained from the corresponding viewpoint is projected.
- the afterimage of the naked eye is induced to form a pseudo three-dimensional image on the screen, or the force that moves the display object around the periphery.
- a cylindrical film of the captured image is created, the images of the cylindrical film are sequentially read, and the images are read through a mirror that rotates in synchronization with the reading of the cylindrical film.
- JP-A-2001-103515 and JP-A-2002-27504 enable stereoscopic viewing using an afterimage, so that slightly different images can be obtained almost simultaneously. It needs to be displayed. For this purpose, a sufficiently large number of two-dimensional images are required, and it takes a lot of labor and time to create them, and a memory for holding the data of such two-dimensional images is also required. Also, since it is necessary to rotate the screen at high speed, it is necessary to accurately project a two-dimensional image corresponding to the orientation of the screen onto the screen. It is necessary to maintain synchronization with the projection timing of the three-dimensional image with high accuracy.
- many of the conventional examples have problems such as the sharpness of the image and the darkness of the image because the screen is rotated.
- the conventional example has a problem that it is difficult to increase the size due to air resistance in order to rotate the screen.
- An object of the present invention is to provide a display device and an imaging device capable of viewing a high-resolution clear stereoscopic image from any direction.
- the present invention projects a frame image projected from a projector such as an electronic projector onto a projection image plane of a stereoscopic screen via a polygonal mirror disposed around the stereoscopic screen. It provides viewers with multi-faceted images such as stereoscopic images.
- the stereoscopic screen has a viewing angle restriction frame that restricts the viewing angle in the left-right direction projected onto the projection image plane 50.
- a filter and a directional reflective screen Provide a filter and a directional reflective screen.
- this directional reflective screen has two sheets, a horizontal direction and a vertical direction.
- the projection optical path between the electronic projector and the polygon mirror is formed by being refracted through the capture mirror.
- FIG. 1 is an external perspective view of a display device according to a first embodiment. .
- FIG. 2 is a schematic diagram of a projected image projected by the electronic projector of the display device according to the first embodiment.
- FIG. 3 is a schematic cross-sectional view showing an overall schematic configuration of the display device according to the first embodiment.
- FIG. 4 is a plan view of the display device showing the viewing angle direction of the user in the display device according to the first embodiment.
- FIG. 5 is a display diagram in the viewing angle direction shown in FIG.
- FIG. 6 is a partial cross-sectional view of a projected image surface of a stereoscopic screen in the display device according to the first embodiment.
- FIG. 7 is a detailed view of a viewing angle limiting filter in the display device according to the first embodiment. .
- FIG. 8 is a partially enlarged perspective view of a directional reflective screen in the display device according to the first embodiment.
- FIG. 9 is a plan view for explaining the visible range of the display image of the user in the display device according to the first embodiment. .
- FIG. 10 is an external perspective view showing an application example of the shape of the three-dimensional screen in the display device according to the first embodiment.
- FIG. 11 is a schematic configuration diagram of an application example of the display device according to the first embodiment.
- FIG. 12 is a principle diagram of an imaging apparatus that creates a projected image in the display apparatus according to the first embodiment.
- FIG. 1 3 is a configuration diagram of a photographing device in the display device according to the first embodiment.
- FIG. 14 is a configuration diagram of a display device according to a second embodiment.
- FIG. 15 is a block diagram of a display device according to a third embodiment.
- FIG. 16 is a configuration diagram of a display device according to a fourth embodiment.
- FIG. 17 is a schematic diagram of a projected image projected by the electronic projector of the display device according to the fourth embodiment. .
- FIG. 18 is a longitudinal sectional view of a display device according to a fourth embodiment.
- FIG. 19 is a main part configuration diagram of a display device according to a fifth embodiment.
- FIG. 20 is a plan view showing a projection area of an electronic projector in a display device according to a fifth embodiment.
- FIG. 21 is a schematic diagram of a projected image of an electronic projector in a display device according to a fifth embodiment.
- FIG. 22 is a block diagram for explaining the arrangement of mirrors in a polygon mirror in a display device according to a fifth embodiment.
- FIG. 3 is an external perspective view of a display device according to a fifth embodiment.
- FIG. 24 is a configuration diagram showing another embodiment of the imaging device in the display device according to the fifth embodiment.
- FIG. 25 is a conceptual diagram of imaging with an imaging device in a display device according to a fifth embodiment.
- FIG. 26 is a projected video image taken by the imaging device in the display device according to the fifth embodiment. .
- FIG. 27 is a block diagram for creating a projection image of the display system according to the fifth embodiment.
- FIG. 28 is a block diagram for displaying in the display system according to the fifth embodiment.
- FIG. 29 is a diagram showing the relationship between the imaging area of the imaging device and the projection area of the electronic projector in the display system according to the fifth embodiment.
- FIG. 30 is a block diagram of the display system of FIG.
- FIG. 31 is a block diagram showing another specific example of the display system according to the fifth embodiment.
- FIG. 32 is a diagram showing a projection area when the number of electronic projectors used is different in the display system according to the fifth embodiment.
- FIG. 33 is a diagram showing a process of creating a projected image of the display device according to the sixth embodiment.
- FIG. 34 is a diagram showing a process of creating a projected image of the display device according to the sixth embodiment.
- FIG. 35 is a diagram showing a concept of a method for creating a projected image of a display device according to a sixth embodiment.
- FIG. 36 is a flowchart showing a process of creating a projection video according to the resource of the projection video in the display device according to another embodiment.
- FIG. 37 is a perspective view showing a schematic structure of a display device according to an eighth embodiment. .
- FIG. 8 is a system configuration diagram of a display device according to an eighth embodiment.
- FIG. 39 is a schematic cross-sectional view showing a usage state of the display device according to the eighth embodiment.
- FIG. 40 is a schematic diagram of a projected video image projected by an electronic projector in a display device according to an eighth embodiment.
- FIG. 1 is an external perspective view of the display device according to the first embodiment.
- a display device includes an electronic projector 1 that projects various images, and a stereoscopic screen 3 that finally receives the images from the electronic projector 1 and displays the images.
- a control unit 6 for overall control.
- the three-dimensional screen 3 has a projection image plane 50 that displays an image on its outer peripheral surface, and receives image light provided from the polygonal mirror (mirror group) 5 disposed around the projection image plane 50.
- the image can be displayed on the projected image plane 50. Therefore, the user can see the image displayed on the stereoscopic screen 3 from the surroundings.
- the three-dimensional screen 3 having a cylindrical shape with the central axis P being the vertical direction is employed, but the present invention is not limited to this.
- a three-dimensional screen 3 having a three-dimensional (rotational similarity) shape generated by rotating around a single straight line with an axis (center axis P) having a plane figure such as a cone or a sphere on the same plane can be employed.
- the users around the 3D screen 3 can view the video under the same conditions.
- the solid screen 3 that does not have the rotationally similar shape may be used.
- the stereoscopic screen 3 includes a viewing angle limiting filter 12 2 for limiting a horizontal viewing angle projected onto the stereoscopic screen 3 on the projection image plane 50, and a directional reflection that improves visibility.
- the directional reflection screen 11 includes a corner mirror sheet 11 a that improves the visibility in the horizontal direction and an anisotropic diffusion sheet 11 b that improves the visibility in the vertical direction.
- the polygon mirror 1 is a group of mirrors composed of a plurality of mirrors arranged on a concentric circle with the stereoscopic screen 3 as the center.
- the polygon mirror 5 is arranged eccentrically upward or downward in order to ensure the visibility of the stereoscopic screen 3.
- the position Q 1 facing the stereoscopic screen 3 is a position where the user viewing the stereoscopic screen 3 has good visibility. Therefore, the polygon mirror 5 has a plurality of mirror groups arranged on a concentric circle at a position Q 2 shifted by a length L 1 above or below the position Q 1 facing the stereoscopic screen 3. (See Figure 3)
- each mirror is arranged with an inclination angle so as to face the stereoscopic screen 3 from the eccentric direction.
- the three-dimensional screen 3 has a rotationally similar shape, the three-dimensional screen 3 has a conical surface formed in a ring shape on a circular locus having the same radius centered on the central axis P. It is comprised from the some mirror arrange
- the electronic projector 1 uses liquid crystal or the like, and projects a frame image of an object corresponding to each of the polygon mirrors 5 (see FIG. 2).
- the electronic projector 1 is disposed on one side of the central axis P.
- the electronic projector 1 since one electronic projector 1 is employed, it is arranged on the central axis P. For this reason, it can project on the said polygon mirror 5 on the same conditions (optical path distance).
- the electronic projector 1 is not limited to one.
- a plurality of the electronic projectors 1 can be employed. In this case, if the projectors are arranged on the concentric circle of the central axis P, the projection can be performed under the same conditions as in the case of the one. it can.
- the auxiliary mirror 4 is disposed on a projection optical path X between the electronic projector 1 and the polygonal mirror 5 and constitutes a projection optical system together with the electronic projector 1 and the polygonal mirror 5.
- the electronic projector 1 and the polygonal mirror 5 are arranged in the lower part on one side of the rotating shaft P, and the auxiliary mirror 4 is arranged in the upper part on the other side.
- this auxiliary mirror 4 is affixed on the back surface (lower surface) of the top plate of this display apparatus.
- the frame image projected from the electronic projector 1 is reflected by the auxiliary mirror 4 and provided to the individual mirrors of the polygonal mirror 5 arranged around the stereoscopic screen 3. Is done. Since the individual mirrors of the polygonal mirror 5 are installed toward the stereoscopic screen 3, the provided frame image is reflected toward the projection image plane 50 of the stereoscopic screen 3. Thereby, the frame image can be displayed on the projected image plane 50 of the stereoscopic screen 3.
- the plurality of frame images displayed on the projection image plane 50 are set so as to display the projection image plane 50 without any gaps.
- the frame image is an image when the same object is viewed from different positions around it. Therefore, when the image displayed on the projected image plane 50 of the stereoscopic screen 3 is viewed around the periphery, different sides of the display object can be viewed.
- the three-dimensional screen 3 passes through a polygon mirror 5 arranged around the three-dimensional screen 3 for a frame image projected from a projector such as the electronic projector 1.
- the projected image is projected onto the projected image plane 50. It is in the point that a plane picture can be provided. As a result, it is not necessary to rotate the screen as compared with the conventional rotating screen, so it can be made smaller and larger.
- Another major feature of this embodiment is that visibility is improved by applying various ideas to the projected video surface 50 of the stereoscopic screen 3.
- One of them is the viewing angle limiting filter 12 that limits the viewing angle in the left-right direction of the image projected on the stereoscopic screen 3.
- the user sees the frame image corresponding to this direction from the specified direction around the stereoscopic screen 3.
- the viewing angle restriction filter that restricts the next frame image from being shown.
- a directional reflective screen 11 is provided to increase the visibility of the display screen of the stereoscopic screen.
- This directional reflection screen 11 is composed of two sheets in the horizontal direction and the vertical direction, the corner mirror sheet 1 1 a and the anisotropic diffusion sheet 1 1 b.
- the projection image plane 5 0 comprises an arcuate surface, although the central portion easily viewable, each side is in a state of obscured. Therefore, in this embodiment, a corner mirror sheet 11 a that retroreflects with respect to incident light in the horizontal direction is pasted on the projection image plane 50. Thereby, the image displayed on the projected image surface 5Q can be made uniform and the visibility can be improved. Furthermore, since the reflected light provided to the user can be increased, the entire screen can be brightened.
- the anisotropic diffusion sheet 1 1 b is pasted on the projection image surface in order to suppress vertical light collection and to make the image appear in a wider range. ing. Thereby, the entire surface of the three-dimensional screen 3 can be seen with more uniform brightness in the vertical direction, which can be easily seen.
- the directional reflection screen 11 uses two sheets in the horizontal direction and the vertical direction, but at least the horizontal corner mirror sheet 11a is adopted.
- Another major feature of this embodiment is that the size reduction is realized by adopting the auxiliary mirror 4.
- the polygonal mirror 5 arranged around the three-dimensional screen 3 is arranged at the position Q 2 that is offset from the facing position Q 1 in the direction of the central axis P, the polygonal mirror 5 is arranged from the central axis P.
- the distance (radius L 2) to polygon mirror 5 must be increased. In other words, it is necessary to increase the radius L 2 to the trajectory where the polygon mirror 15 is placed.
- the problem is solved by adopting the auxiliary mirror 4. That is, the electronic projector 1 and the polygonal mirror 5 are arranged on one of the central axes P. On the other hand, the projection light of the electronic projector 1 is used for the auxiliary mirror 4 that refracts the polygonal mirror 5. This solves the above problem.
- one auxiliary mirror 4 is used, but a plurality of auxiliary mirrors may be arranged.
- the electronic projector 1 and the second auxiliary mirror are arranged on one side of the central axis P, and the first auxiliary mirror is arranged on the other side.
- a polygon mirror 5 may be disposed, and the projection light of the electronic projector 1 may be provided to the polygon mirror 5 by sequentially refracting the first auxiliary mirror and the second auxiliary mirror.
- Fig. 2 is a schematic diagram of the projected image projected by this electronic projector.
- the image projected by the electronic projector 1 is a ring shape so as to avoid the stereoscopic screen 3.
- G a to G p are images when the same object is viewed from different positions around it.
- the frame image G a is a frame image viewed from the front of this object
- the comma image G i is an image of the same object viewed from directly behind
- the position of corresponds to the position of viewing this object.
- These frame images G a to G p are respectively reflected by separate mirrors of the polygon mirror 5 and projected onto the screen 3 with a viewing angle limiting filter.
- FIG. 3 is a schematic sectional view showing the overall schematic configuration of the display device shown in FIG.
- FIG. 4 is a plan view of the display device showing the viewing angle direction of the user.
- FIG. 5 is a display diagram in the viewing angle direction shown in FIG.
- FIG. 3 in this embodiment, various video data representing the frame images G a to G p shown in FIG. 2 are stored in the storage unit 8, and the electronic projector 1 is controlled under the control of the control unit 6. Is projected.
- the control unit 6 controls the display device in an integrated manner, reads video data from the storage unit 8 and supplies it to the electronic projector 1 to project a video as shown in FIG. Projected images consisting of such frame images G a to G p can be arbitrarily selected using computer graphics, etc. Alternatively, it may be created by imaging with a CCD camera, as will be described later. In addition, when creating by imaging with a CCD camera, the creation may be performed at a remote place, and the created video data may be received and stored in the storage unit 8.
- the control unit 6 reads the video data from the storage unit 8 and supplies the video data to the electronic projector 1.
- the electronic projector 1 emits an image as shown in FIG. 2 based on the received image data. This emitted image is reflected by the mirror 4, then reflected by a different mirror of the polygonal mirror 5 for each of the frame images G a to G p, and projected onto the stereoscopic screen 3.
- FIG. 6 is a partial cross-sectional view of the projected image plane of the stereoscopic screen.
- 7A and 7B are detailed views of the viewing angle limiting filter.
- FIG. 7A is a cross-sectional view
- FIG. 7B is a perspective view thereof.
- FIG. 8 is a partially enlarged perspective view of the directional reflective screen.
- FIG. 9 is a plan view for explaining the visible range of the display image of the user.
- a directional reflection screen 11 1 is pasted on the projection image plane 50 of the three-dimensional screen 3, and a viewing angle limiting filter 2 is pasted on the surface.
- the directional reflective screen 1 1 is a corner mirror.
- the sheet 1 1 a has a structure in which an anisotropic diffusion sheet 1 1 b is stacked on the surface.
- the three-dimensional screen 3 is composed of a screen plate-like member 9 as a base of the viewing angle limiting filter 2 and a plurality of light-shielding fins 10 arranged at equal intervals on both surfaces of the screen plate-like member 9. Composed. These fins 10 have a thickness of about 100 to 200 m, for example, and are provided with a pixel size on the stereoscopic screen 3, for example, with a pitch of about 0.5 to 2 mm, as shown in FIG.
- the frame image (adjacent frame image) projected by the mirror next to the polygonal mirror 5 is shielded from light, and it corresponds to each direction. Only the frame image projected by the mirror is visible.
- the viewing angle limiting filter 2 is configured to limit the viewing angle by the fin 10 so that the adjacent comma image cannot be seen.
- the height of the fin 10 depends on the viewing angle (visible range). Is set.
- the field-of-view restriction angle is given as approximately ⁇ 36 0 ° / (" ⁇ number of frame images per lap X 4).
- the number of coma images in the projected image is 16 frames as shown in Fig. 2.
- the thickness is about 3-20, and the viewing angle is about ⁇ 9.0 ° (for 10 frames).
- the thickness is about 3-20, and the viewing angle is about ⁇ 9.0 ° (for 10 frames).
- 50 to 200 ⁇ which has the same effect as fin 10
- a light shielding partition (not shown) having a thickness of about a thickness may be inserted at a pitch of about 0.3 to 2 mm.
- a cylindrical lens that condenses light in the viewing angle limit direction may be arranged.
- a directional reflecting screen material as described in Japanese Patent Application Laid-Open No. 1 1 2 5 8 6 9 7 is used. It may be. .
- the directional reflection screen 11 is composed of a corner mirror sheet 1 1 a and an anisotropic diffusion sheet 1 1 b.
- a lenticular sheet is used as the anisotropic diffusion sheet 1 1 b.
- this directional reflection screen 1 1 it has a characteristic of retroreflecting in the horizontal direction and diffusely reflecting in the vertical direction with respect to the incident light, and is incident within an incident angle of ⁇ 45 °. The reflected light is reflected in the incident direction.
- the user facing the projected image plane 50 can view an image within the range of 45 ° left and right.
- the stereoscopic screen 3 using the directional reflector screen 11 1 has a wider input angle range that can be reflected in a predetermined direction than the stereoscopic screen 3 not using the directional reflector screen 11 1. Therefore, the amount of reflected light is large, and as a result, a bright image can be obtained.
- a viewing angle limiting filter 12 as shown in FIG. 7 is also provided. ing.
- the viewing angle limiting filter 12 has a structure in which fins are arranged at a fine pitch as shown in FIG.
- Directional reflector screen 1 1 on the surface for example.
- a viewing angle limiting filter viewing angle limiting optical system
- the reflected light of the frame image from the neighborhood is shielded, and the direction from a to p (Fig. 4) is shown in Fig. 9
- the frame image of the object corresponding to the viewing direction for each viewing direction G a to G It is possible to see only ⁇ (Fig. 5), and the effect is that multiple people can enjoy video from any direction at the same time.
- FIG. 10 is an external perspective view showing an application example of the shape of the three-dimensional screen 3.
- Fig. 10 is a cylindrical perspective view shown in Fig. 1
- Fig. 10 is a circular arc whose cylindrical surface is concave.
- FIG. 4C is a perspective view of a spherical three-dimensional screen that is long in the vertical direction.
- the three-dimensional screen 3 according to this embodiment has a rotationally similar shape, the same effects as described in FIG. 1 can be obtained. Therefore, as shown in (a), it is not limited to a cylindrical shape.
- (b) The figure shows a three-dimensional screen with a circular circular surface with a circular circular surface with a thin circular center and a gradually increasing thickness in the vertical direction. 3.
- this three-dimensional screen 3 since the vertical direction is curved toward the center, even if the anisotropic diffusion sheet 1 1 b is not used, the same effect as when the anisotropic diffusion sheet 1 1 b is used. An effect can be obtained.
- the corner mirror sheet 1 1a is also used in the vertical direction in the shape formed by a convex arc whose horizontal and vertical directions gradually recede toward the rear. I'll do it.
- the stereoscopic screen 3 is not necessarily limited to the rotationally similar shape.
- each frame image may be changed according to the outer shape of the stereoscopic screen 3. Or, if you want to display an abstract pattern, you can get a decorative effect.
- FIG. 11 is a schematic configuration diagram of an application example of the first embodiment shown in FIG.
- this embodiment is a display device that does not employ the auxiliary mirror 4. That is, in this modification, the electronic projector 1 is fixed to the ceiling, and the stereoscopic screen 3 is installed below the vertical direction.
- the frame image emitted from the electronic projector 1 is a polygonal mirror 5 having a conical surface. And projected onto the stereoscopic screen 3 from the directions a to p shown in FIG. As a result, on the stereoscopic screen 3, frame images G a to G p as shown in FIG. 5 are displayed according to the direction (that is, the viewing direction).
- a plurality of people can simultaneously enjoy stereoscopic images from any direction, and adjustment of each mirror of the polygon mirror 5 is also necessary.
- errors due to subtle deviations in the position and orientation of the mirror can be reduced.
- the polygon mirror 5 can be arranged close to the screen 3 provided with the viewing angle limiting filter 2, the entire apparatus can be reduced in size and a stereoscopic image can be viewed near the stereoscopic screen 3.
- the electronic projector 1 can always emit a projection image including all the frame images as shown in FIG. 2, it is not necessary to consider the emission timing for each image.
- the frame image emitted from the screen is projected onto the stereoscopic screen 3, and the projected frame image is viewed by a person, so that a clear stereoscopic image can be viewed from any direction and position.
- the electronic projector 1 is installed below the central axis P of the stereoscopic screen 3 having the viewing angle limiting filter 2 and projected upward.
- these vertical position definitions are used in relation to the central axis P and the position where the image is formed.
- the installation location of the display device It is not limited to the positional relationship with the floor or ceiling, and may be upside down.
- FIG. 12 shows the principle of the imaging device that creates the projected image shown in Fig. 2.
- FIG. 13 is a block diagram showing a first embodiment of the photographing apparatus using the principle shown in FIG.
- the polygon mirror 14 is composed of a plurality of mirrors arranged on a conical surface, like the polygon mirror 5 shown in FIG.
- a downward C CD camera 13 is provided above the central axis P of the conical surface.
- the entire polygon mirror 14 is included in the imaging field of the C CD camera 13.
- Each mirror of the polygon mirror 14 corresponds to the directions a to p in FIG.
- an object 15 to be photographed is arranged on the central axis P of this conical surface.
- the image of the object 15 is reflected by each mirror of the polygon mirror 14 and is captured by the CCD camera 13 as a frame image.
- the video imaged by the CCD camera 13 may be a still image or a video.
- the force S is a structure for photographing the polygon mirror 14, but is not limited thereto.
- an auxiliary mirror 16 similar to the display device of FIG. 1 may be provided between the CCD camera 13 and the polygonal mirror 14. This is further illustrated in FIG.
- the subject 15 is a person, and an image of the whole body of the person 15 is obtained.
- the auxiliary mirror 16 is attached to the back surface of the ceiling above the CCD camera 13, and the CCD camera 13 faces the assisting mirror 16 side.
- Each auxiliary mirror of the polygon mirror 14 is arranged on a conical surface like each auxiliary mirror of the polygon mirror 5 in FIG. .
- the images of person 15 viewed from the a to p directions are reflected by the mirror corresponding to polygon mirror 14, and further reflected by auxiliary mirror 16 on the ceiling and captured by CCD camera 13. Is done. As a result, the image shown in Fig. 2 is obtained.
- the imaging target is not limited, and a plurality of imaging targets may be included.
- the height of the entire photographing apparatus can be kept low by the same function and effect as the assisting mirror 4.
- FIG. 14 is a configuration diagram of a display device according to the second embodiment.
- the display device in the second embodiment, is connected to the imaging device 17 via the communication path 18.
- this projection video is processed to generate a video signal such as NTSC / PAL, and this is displayed on the display device.
- the display device To the display device via communication path 18.
- the display device Upon receiving this video signal, the display device converts it to the original captured video and supplies it to the electronic projector 1.
- a frame image of the object 15 obtained by the imaging device is displayed on the stereoscopic screen 3, and a stereoscopic image is displayed in real time along with the creation of the projected image. Is possible.
- the communication path 18 may be wired or wireless.
- the imaging device 17 may be configured to transmit the acquired projection video to a remote display device via a network.
- the data of the digital video format such as MPEG. You can send it.
- a stereoscopic image of the object 15 can be viewed at a remote location by the display device.
- the principle of the imaging device shown in Fig. 12 it is possible to create an imaging system of a size that is suitable for the subject. That is, by setting the size of each mirror of the conical polygon mirror and the size of the circle in which these mirrors are arranged according to the size of the subject (imaging target), an imaging device corresponding to the imaging target is set. Can be made. The height of the CCD camera is also adjusted so that the entire conical inner polygonal mirror fits within the field of view of the CCD camera, and a coma image can be taken from all the polygonal mirrors. .
- FIG. 15 is a configuration diagram of a display device according to the third embodiment.
- this third embodiment is installed on a street or the like, detects a person approaching from all directions, and visually notifies the approaching person of various guidance.
- this embodiment by using a method in which sensors 19 are provided at a plurality of locations around the display device or a mat switch is laid on the floor (not shown), It makes it possible to detect that you are approaching.
- the means for detecting the viewer's directions a to p Fig. 4
- it is sufficient to use as many infrared rays, proximity sensors, and microphones as the number of directions to be detected for example, 16 in the a to p directions). .
- the signal obtained by the sensor 19 is processed by the control unit 6.
- the control unit 6 transmits an image corresponding to the movement of the viewer to the electronic projector 1.
- sensor 19 signal change The direction in which the person is approaching is detected, and the character is displayed in a predetermined direction on the stereoscopic screen 3 so that the character projected on the stereoscopic screen 3 faces the approaching person.
- a method of creating a video that causes the character to rotate is to store the frame videos G a to G p shown in FIG. 5 in the control unit 6, for example, to display the video as shown in FIG.
- projecting images with the frame images G a to G p shifted by one frame or several frames in the circumferential direction can create a movement that makes the character rotate.
- Information on the direction indicating whether or not the frame image is shifted or in front may be stored in advance, and control may be performed so that the front image is formed in the direction detected when there is a person.
- FIG. 16 is a configuration diagram of a display device according to the fourth embodiment.
- FIG. 17 is a schematic diagram of a projection image projected by the electronic projector 1.
- FIG. 18 is a longitudinal sectional view of the fourth embodiment shown in FIG.
- this fourth embodiment has a semi-cylindrical shape, and as shown in FIG. 16, a plurality of mirrors in which polygon mirrors 5 are arranged in a semi-conical surface are used. It is configured.
- the auxiliary mirror 4 is affixed to the back of the ceiling.
- the polygon mirror 5 and the auxiliary mirror 4 form a projection optical system.
- the electronic projector 1 emits a projected image in which frame images Gb to Gi are arranged in a semicircular shape.
- the control unit 6 stores the projection image and supplies it to the electronic projector 1.
- the electronic projector 1 emits a projection image as shown in FIG. 17 supplied from the control unit 6. This image is reflected by the mirror 4 on the back of the ceiling, and each frame image Gb to Gi of this image is reflected by each mirror of the polygon mirror 5 and projected onto the stereoscopic screen 3a.
- the projected image emitted from the electronic projector 1 is obtained by dividing the divided frame images G b to G i (similar to Fig. 5) when the object is viewed in the ring area from the periphery. It is a video arranged in a direction and a semicircle. As a method for creating such a video, it may be arbitrarily created by computer graphics or the like, or may be created by photographing with a CCD camera by the method described in FIG.
- the control unit 6 reads out video data shown in FIG. 16, for example, and supplies it to the electronic projector 1.
- the electronic projector 1 emits a projection image of the supplied image data.
- the light of each of the divided frame images G b to G i in the ring area of the projected image that has been emitted is reflected by the mirror 4 on the back surface of the ceiling, and then each of the polygon mirrors 5 arranged in a semiconical surface
- the frame images G b to G i are projected on the stereoscopic screen 3 a from the b to i directions shown in FIG.
- the 3D screen 3a is a screen that has the property of transmitting the image projected from the rear side. It is desirable to limit the viewing angle in the horizontal direction so that different images can be seen depending on the viewing direction, and to have a wide viewing angle range in the vertical direction. Therefore, a transflective film such as that used in rear projection displays is used.
- a Fresnel lens is a lens with a curved surface that is not continuous, but has a feature that refracts light rays at the stepped portion and collects transmitted light in the same direction as the incident direction of light.
- the viewing angle of Fresnel lenses depends on existing products. However, some lenses have a wide viewing angle of about 60 degrees.
- this Fresnel lens is used, light is transmitted in the same direction as the incident light, and is condensed at a certain position, so that the viewer can see each of the polygonal mirrors arranged in the shape of a semiconical surface and a Fresnel lens.
- a lenticular sheet may be attached to the surface of the Fresnel lens. This makes the entire screen appear more even in the vertical direction, making it easier to see.
- a projected image in which frame images G a to G p (in the case of 16 frames) are arranged in a ring shape as shown in FIG. Projected from Kuta 1.
- the electronic projector 1 projects a projection image in which frame images G b to G i (in the case of 8 frames) are arranged in a semicircular shape as shown in FIG.
- the resolution of the projected image projected from the electronic projector 1 is the same, the required frame image is half of the display device according to the fourth embodiment as compared with the first embodiment. Therefore, the resolution of each frame image projected by the electronic projector 1 in the fourth embodiment is equal to the resolution of the frame image projected from the electronic projector 1 in the first embodiment. 4 times, and the expressive power of the projected frame image is improved.
- the polygonal mirror is a semicircular shape, but the cylinder in which the mirrors are arranged can be more than half and less than half.
- the angle direction in which the image can be viewed is determined by the range of the angle direction in which the mirrors are arranged in a conical shape.
- FIGS. 19 to 23 are display devices according to this embodiment
- FIGS. 24 to 26 are imaging devices
- FIGS. 27 to 32 are a plurality of display devices (imaging devices). Display system that is controlled by a network.
- FIG. 19 is a main part configuration diagram of a display device according to a fifth embodiment.
- FIG. 20 is a plan view showing a projection area of each electronic projector.
- Figure 21 is a schematic diagram of the projected image of an electronic projector.
- Fig. 22 is a block diagram for explaining the arrangement of each mirror in the polygon mirror.
- FIG. 23 is an external perspective view of the display device according to the fifth embodiment.
- FIG. 24 is a block diagram showing another embodiment of an imaging apparatus for creating a projected video.
- Fig. 25 is a conceptual diagram of imaging with the imaging device.
- Figure 26 is a projected image taken by the imaging device.
- FIG. 20 is a plan view showing a projection area of each electronic projector.
- Figure 21 is a schematic diagram of the projected image of an electronic projector.
- Fig. 22 is a block diagram for explaining the arrangement of each mirror in the polygon mirror.
- FIG. 23 is an external perspective view of the display device according to the fifth embodiment.
- FIG. 24 is
- the fifth embodiment uses a plurality of electronic projectors, and here, it is assumed that four electronic projectors 1a to ld are used. These electronic projectors 1a to ld are arranged above the polygonal mirror (mirror group) 5, and the centers of the projection optical systems 25a to 25d of these electronic projectors 1a to ld are These electronic projectors 1 are located on the circumference of the same radius centered on the extension line of the central axis P of the three-dimensional screen 3 and at equal intervals (interval of 90 degrees when viewed from the central axis P). a to 1d are arranged.
- the electronic projectors 1a to 1d arranged in this way each project a polygon mirror 15 part by part.
- the projection area 26a is an area where an image emitted from the electronic projector 1a is projected.
- the mirror is completely contained in the projection area 2 6 a-cup of the parenthesis.
- the number of mirrors composing the polygonal mirror 5 is 24, the number of electronic projectors is 4, so the number of mirrors completely contained in the projection area 2 6 a is at least 6. It is a piece.
- the projection area 2 6 b is an area where the image emitted from the electronic projector 1 b is projected, and this projection area 2 6 b follows the 6 mirrors that are completely included in the projection area 2 6 a 6 One mirror is completely included in this projection area 2 6 b-cup.
- the projection area 26c is an area onto which an image emitted from the electronic projector 1c is projected.
- the projection area 26c includes six pieces that are completely included in the projection area 26b.
- the six mirrors following the mirror are completely contained in the projection area 2 6 c-cup of the parenthesis.
- the projection area 26 d is an area on which an image emitted from the electronic projector 1 d is projected. Six mirrors between six mirrors completely contained in shadow areas 2 6 c and 2 6 a are completely included in the projection area 26 d-cup of the parenthesis. This also applies to the specific examples described later.
- the projection area 26 a includes mirror 5 (1) to mirror 5 (6).
- the projection area 26 b completely includes mirror 5 (7) to mirror 5 (1 2), and the projection area 26 c includes mirror 5 (1 3) to mirror 5 (1 8) is completely included, and the projection area 26 6 d completely includes mirror 5 (1 9) to mirror 5 (24).
- the polygon mirror 5 is composed of 24 mirrors 5 (1) to (24), as shown in FIG. 2, they are arranged in a ring shape. Projection images including 24 frame images are used. Each electronic projector 1a to 1d shares 6 frame images and projects them onto mirrors completely included in the corresponding projection area. To do.
- Fig. 21 shows, for example, a projected image emitted from an electronic projector 1d. In this projected image, six frames are displayed in mirror 5 (1 9 ) ⁇ Five
- the frame images of the projected images emitted from the electronic projectors 1 a to ld are reflected by the corresponding mirrors of the polygonal mirror 5 and projected onto the stereoscopic screen 3.
- the electronic type When the projection port of the projector 1 is on the extension line of the central axis P of the stereoscopic screen 3, the surfaces of the mirrors of the polygon mirror 5 are arranged on the same conical surface, so that When the frame image is projected well, but the projection ports 25a to 25d of the electronic projectors 1a to ld are deviated from the extension line of the center axis P as in the fifth embodiment.
- the coma image reflected by each mirror of the polygon mirror 5 is projected at a position shifted on the stereoscopic screen 3. It will be. If the projection position is shifted in this way, when the viewer moves around the stereoscopic screen 3 and sees the projection image on the stereoscopic screen 3, the position changes according to the position at which the projection image is viewed. However, the display is unnatural. For example, if the displayed projected image is an image of a stationary object, when the projected image is viewed while moving around the 3D screen 3, the projected image appears to move up and down, left and right.
- the electronic projectors 1a to 1d are arranged by the polygon mirror 5 that projects the frame image.
- the 6 mirrors are set as a set, and the direction of each mirror is adjusted for each set.
- each mirror reflects the frame image projected from the corresponding electronic projector by the mirror surface and projects the image onto the stereoscopic screen 3, and the electronic projector 1, the auxiliary mirror 4, and the stereoscopic screen 3 Adjust it so that it is at an appropriate position and angle on the optical path of the optical system formed between them.
- the light beam at the center of each frame image in the projection image emitted from the electronic projector 1 a corresponds to each of the polygon mirrors 5.
- Polygon mirrors 5 (1), 5 (2), 5 (3), 5 (4), 5 (5), and 5 (6) after being reflected at the center axis P of the three-dimensional screen 3 More specifically, this three-dimensional screen
- These polygon mirrors 5 (1), 5 (2), 5 (3), 5 (4), 5 (5), 5 (6) are set so that they are gathered at the center position.
- Mirror 5 (2) and mirror 5 (5) are tilted from the conical surface assumed to be equiangular in the direction facing each other
- mirror 5 (1) and mirror 5 (6) are tilted from the conical surface assumed to be equiangular in the direction facing each other.
- the tilt angle of mirrors 5 (2) and 5 (5) is made larger than the tilt angles of mirrors 5 (3) and 5 (4), and the tilt angles of mirrors 5 (2) and 5 (5) are further increased.
- the angle of inclination of mirrors 5 (1) and '5 (6) is made larger than the angle.
- the central light of each coma image emitted from the electronic projector 1 a is respectively After being reflected at the center position of the mirrors 5 (1) to 5 (6), they are collected at the center position of the stereoscopic screen 3.
- the frame image reflected and projected by each mirror of the mirror 5 is displayed at the correct position, and as shown in Fig. 23, the three-dimensional screen moves around the device. Even when viewing the 3D image displayed in Fig. 3, the 3D image does not show any unnatural movement or shaking, and a good 3D image can be seen.
- a plurality of (4 in this case) electronic projectors 1 a to ld display a plurality of comma images representing a stereoscopic image.
- the number of frame images to be displayed is smaller than that of the first to fourth embodiments, and the amount of light emitted from the electronic projectors 1a to 1d is correspondingly reduced. Since each frame image can be enlarged, each frame image can be projected as a high-resolution image. As a result, the solid image projected on the stereoscopic screen 3 becomes a high-definition image with high resolution.
- Fig. 24 when creating a projected image for each of the electronic projectors 1a to ld described in Fig. 19, in the display device shown in Figs. Remove from the position (Fig. 2 2) and attach the imaging object 30 that is the object of the projected image. That is, in FIGS. 19 and 23, the position where the standing screen 3 is installed is the installation area of the imaging target.
- the electronic projectors la to lb (FIG. 19) are removed, and the imaging devices 27a to 27d are attached instead.
- These electronic projectors 2 7 a, 2 7 b, 2 7 c, 2 7 d respectively capture the imaging areas 29 a, 29 b, 29 c, 29 d with respect to the polygon mirror 5.
- the imaging area 29 a matches the projection area 26 a of the electronic projector 1 a in FIGS. 19 and 20 (in this case, it is not necessary to match completely)
- the position of the imaging device 27 a and the inclination of the optical axis of the optical system 28 a ( Therefore, the orientation of the imaging device 2 7a) is set, The position of the imaging device 2 7 b and the tilt of the optical axis of its optical system 28 b (accordingly, so that the area 29 b matches the projected area 2 6 b of the electronic projector 1 b in Figs. , The orientation of the imaging device 2 7 b) is set, and the imaging device 2 7 c so that the imaging area 2 9 c coincides with the projection area 2 6 c of the electronic projector 1 c in FIGS.
- the tilt of the optical axis of the optical system 28 c (and hence the orientation of the imaging device 2 7 c) are set, and the imaging area 2 9 d corresponds to the electronic projector 1 d in Figs.
- the position of the imaging device 27 d and the inclination of the optical axis of the optical system 28 d (hence the direction of the imaging device 27 d) are set so as to coincide with the projection area 26 d.
- the imaging device 2 7 a looks at one mirror 5 (i) of the polygon mirror 5 in the imaging region 29 a, this mirror 5 ( With respect to i), a virtual imaging target 30 ′ that is in a symmetrical position with respect to the imaging target 30 is captured.
- a virtual imaging target 30 ′ that is in a symmetrical position with respect to the imaging target 30 is captured.
- the three-dimensional coordinate system of w (height) rotates according to the inclination of the plane of mirror 5 (i) in the x, y, and z coordinate systems.
- the imaging device 27a can see the same side of the virtual imaging symmetry 30 'as the side of the imaging object 30 viewed through the mirror 5 (i) with the same size.
- the side surface of the imaging object 30 that can be seen through the mirror 5 (i) can be imaged.
- each imaging device 27 a to 27 d the imaging object 30 is captured (in this case, these imaging devices 27 a to 27 d are simultaneously connected). You can take pictures or take pictures at different timings)
- An image as shown in 2 6 (a) is obtained. That is, regarding the imaging device 2 7 a, the side surface of the imaging target 30 reflected by all the mirrors in the polygonal mirror 5 included in the imaging region 29 a (FIG. 24) of the imaging device 27 a A captured image including the image can be obtained.
- the captured video is processed to create a projected video in which only the necessary side images are extracted as frame images, as shown in FIG. 26 (b).
- a projected video in which only the necessary side images are extracted as frame images, as shown in FIG. 26 (b).
- side images from mirrors 5 (1) to 5 (6) in the projection area 26 a are extracted, and the frame image is obtained.
- a projected image is created.
- the captured images obtained from the other imaging devices 2 7 b to 27 d and thus the projected images projected from the respective electronic projectors 1 a to I d in FIG. Will be created.
- the optical system 2 8 a to 28 d of the imaging device 2 7 a to 27 d It may be possible to provide a mask that blocks the image light from unnecessary mirrors, or gate the output video signals of the imaging devices 2 7 a to 2 7 d, depending on the image from such unnecessary mirrors. You can remove the signal component.
- FIG. 27 is a block diagram for creating a projected image of the display system according to the fifth embodiment.
- FIG. 28 is a block diagram for displaying the display system according to the fifth embodiment.
- FIG. 29 shows an imaging area of an imaging device and a projection area of an electronic projector in a display system having an imaging device and an electronic projector at the same time in the display system according to the fifth embodiment. It is a figure which shows the relationship.
- FIG. 30 is a block diagram of FIG.
- FIG. 31 is a block diagram showing another specific example of the display system according to the fifth embodiment.
- FIG. 32 is a diagram showing a projection area when the number of electronic projectors used is different in the display system according to the fifth embodiment.
- this display system is a system in which a plurality of display devices that also serve as photographing devices are managed by a server via a network.
- the clients 3 1 a to 3 1 d are connected to the communication unit 3 7 of the server 35 via the communication path 3 8 by the communication units 34 a to 34 d.
- Each of the clients 3 1 a to 3 1 d is provided with a control processing unit 32 a to 3 2 d and a storage unit 3 3 a to 3 3 d.
- the server 35 is provided with a control unit 36 that generates various command signals in response to operations of an operation unit (not shown).
- the projection images of the electronic projectors 1 a to ld Fig.
- control processing units 3 2 a to 3 2 d of the clients 3 1 a to 3 1 d are respectively provided.
- the imaging devices 2 7 a to 2 7 d are connected. These imaging devices 27a to 27d are arranged as described with reference to FIG.
- the control unit 36 when the user of this display device performs a command operation for creating a projected image by an operating means (not shown), the control unit 36 generates a command signal, and the communication unit 38 communicates with the communication path 38. Send to.
- This command signal is transmitted through the communication path 38 and received by the communication units 34 a of the clients 3 1 a to 3 1 d.
- the control processing unit 3 2 a causes the imaging device 27 a to start imaging in response to the command signal received by the communication unit 34 a.
- the video signal output from the imaging device 27a by this imaging is processed by the control processing unit 32a, and is then used as the video signal of the projected video used in the electronic projector la (Fig.19).
- control processing unit 3 2a may perform processing for removing signal components due to the reflected image from the unnecessary mirror of the polygon mirror 5 (FIG. 24).
- the storage unit 3 3 a The projection image used for the electronic projector 1a (FIG. 19) is stored.
- the projection video data stored in the storage units 3 3 a to 3 3 d may be video data for one field or one frame period.
- 3 0 (Fig. 2 4) moves, and when displaying a 3D image of the imaged object 30, a projection image of a predetermined period as necessary is stored in the storage units 3 3 a to 3 3 d. Try to remember.
- the imaging devices 2 7 a to 2 7 d are started to image, and this user performs the command operation for still image imaging.
- the output video signal of the imaging devices 2 7 a to 27 d is extracted for one field or one frame period, and this is stored as data of the projection video of the electronic projectors 1 a to ld.
- the recording unit 3 3 a to 3 3 d recording start command and recording end command are issued
- the captured video of the period corresponding to this command is recorded.
- the signals may be recorded in the storage units 3 3 a to 3 3 d as projection video data.
- the imaging device 2 7 a is removed and the electronic projector 1 a is attached to the client 3 1 a, and similarly, the imaging devices 2 7 b to 2 are respectively attached to the clients 3 1 b to 3 1 d.
- 7 Remove d and attach the electronic projector 1b to ld.
- these electronic projectors 1a to 1d are arranged as described with reference to FIG.
- the control unit 36 when the user of the display device performs a display command operation with an operating means (not shown) of the server 35, the control unit 36 generates a display command signal and communicates from the communication unit 37. Send to road 3-8.
- the display command signal is received by the communication units 3 4 a to 3 4 d and supplied to the control processing units 3 2 a to 3 2 d.
- these control processing units 3 2 a to 3 2 d start up the electronic projectors 1 a to ld, take in the projection image data from the storage unit 3 3 a, and 1 Supply to a to ld.
- the electronic projectors 1a to ld project their respective projected images, and as a result, the stereoscopic images are displayed on the stereoscopic screen 3 (FIG. 19).
- the same client 3 1 a to 3 1 d replaces the imaging devices 2 7 a to 2 7 d and the electronic projectors la to I d to create projection images. And this projection image is projected.
- the arrangement relationship is rotated by a predetermined angle around the central axis P. As shown in FIG. 7a ⁇ 2 7d can be arranged.
- the imaging device 2 7 a is disposed between the electronic projectors 1 a and 1 b
- the imaging device 2 7 is disposed between the electronic projectors 1 b and 1 c
- the electronic projector By arranging the imaging device 2 7 c between 1 c and I d and the imaging device 2 7 d between the electronic projectors I d and 1 a, the imaging devices 2 7 a to 27 d
- the replacement work with the electronic projectors 1 a to ld can be omitted.
- the projection areas 26a to 26d (shown by solid lines) of the electronic projectors 1a to 1d shown in FIG. Rotating the integral mirror 5 by an integral number of mirrors will be the positions of the imaging devices 2 7 a to 2 7 d in the imaging area 2 9 a to 29 d (shown by broken lines) as shown in Fig. 24 Do it.
- each client of the embodiment shown in FIG. 28 is provided with an imaging device and an electronic projector.
- the imaging device 27 d and the electronic projector 1 d that projects the projection image created thereby can be connected to the client 31 d.
- the data of the projection video obtained by imaging of the imaging devices 2 7 a to 27 d and stored in the storage units 3 3 a to 3 3 d are displayed. Under the control of 9 a to 39 d, it is read out and supplied to the electronic projectors la to I d, and the respective projection images are projected.
- FIG. 31 shows an embodiment in which projection video data is centrally managed in the storage unit 40 of the server 35.
- the storage units 3 3a to 3 3d are provided for each of the clients 3 1a to 3 1d.
- a common storage unit 40 may be provided in the server 35 and the projection video data generated by the clients 3 1 a to 31 d may be stored together in the storage unit 40. .
- each electronic projector When displaying a stereoscopic image, it is only necessary to supply the corresponding projection image data read from the storage unit 40 to each electronic projector (not shown).
- the electronic projector may be connected.
- FIG. 32 shows an embodiment in which the number of electronic projectors is reduced.
- four electronic projectors are used.
- the present invention is not limited to this, and each electronic projector projects an equal number of frame images, and a polygon mirror is configured by these electronic projectors. If the number of mirrors composing a polygonal mirror is m and the number of electronic projectors used is n, then m ⁇ n is an integer.
- the number of electronic projectors m) and the number of electronic projectors used is not limited to four.
- Fig. 3 2 (a) shows the case where two electronic projectors are used.
- projection areas 2 6 a and 2 6 b are set for each, and polygon mirror 5 is Each half of the mirrors to be formed (here, the polygonal mirror 5 is made up of 24 mirrors, and therefore 1 and 2 each).
- Each electronic projector is responsible for the projection of the frame image.
- Fig. 3 2 (b) shows the case of using 6 electronic projectors.
- Projection areas 2 6 a, 2 6 b, 2 6 c, 2 6 d, 2 6 e, 2 6 f are set for each, and the number of mirrors forming the polygonal mirror 5 is equal to the number of 16 (here, The polygonal mirror 5 is made up of 24 mirrors, and therefore 4 each.)
- Each electronic projector is responsible for the projection of the frame image.
- the polygon mirror 5 is used to create projection images by the imaging devices 2 7 a to 2 7 d and the projection images by the electronic projectors 1 a to ld.
- an imaging device for creating projection images used for each electronic projector is provided separately, and the created projection You can send the video to each electronic projector.
- FIG. 33 is a diagram showing a process of creating a projected image of the display device according to the sixth embodiment.
- FIG. 34 is a diagram showing a process of creating a projected image of the display device according to the sixth embodiment.
- FIG. 35 is a diagram showing a concept of a method for creating a projected image of the display device according to the sixth embodiment.
- the force that equalizes the number of imaging devices and electronic projectors used to create the projected image In the sixth embodiment of the display device, The number used is different. That is, the configuration for displaying stereoscopic images using the electronic projector of the sixth embodiment of the display device is basically the same as the configuration shown in FIG. 19, and the projection used for these electronic projectors is also used.
- the configuration of the imaging device for creating video is basically the same as the configuration shown in Fig. 24, but as described above, the number of imaging devices and electronic projectors used is different. is there.
- this embodiment uses six image pickup devices as the image pickup device and four electronic projectors as the display device.
- Figure 3 3 (a) shows the imaging area of each imaging device for the polygon mirror 5 when configured as an imaging device.
- the number of mirrors constituting the polygon mirror 5 is 24.
- the polygon mirror may be a polygon mirror 5 used when displaying a stereoscopic image as shown in FIG.
- the imaging device and the electronic projector are used interchangeably.
- it may be provided in an imaging apparatus that is used exclusively for creating a projected video.
- the imaging regions by the imaging device are sequentially designated as imaging regions 29a, 29b, 29c, 29d, 29e, 29f.
- the imaging devices corresponding to the imaging regions 29a, 29b,..., 29f are imaging devices 27a, 27b, ..., 29f.
- the four electronic projectors used when configured as a display device are electronic projectors 1 a, l b, l c, I d.
- the imaging area 29a of the imaging device 27a is set to an area that completely includes the four mirrors of the polygonal mirror 5, as in the fifth embodiment.
- the imaging area 29b of the next imaging device 27b is set to an area that completely includes the following four mirrors.
- the imaging areas 29c, 29d, 29e, and 29f are set to areas that completely include four mirrors in order. In this case, it is preferable that each of the imaging regions 29 a to 29 f includes four mirrors as much as possible.
- the image pickup device 2 7 a obtains the image pickup image 4 1 a including four complete frame images, and the image pickup device 2 7 b receives the following four images.
- the captured image 4 1 b including the complete frame image is obtained.
- the imaging devices 27 c, 27 d, 27 e, and 27 f each obtain captured images including four complete frame images.
- these frame images are images when an imaging target (not shown) is viewed from different directions. From the captured images 4 1 a and 4 lb obtained in this way, frame images are extracted as shown in Fig. 3 3 (c).
- (c) Create an image with) arranged in an arc.
- This is the projection image used for the next electronic projector 1b.
- projection images used for the two electronic projectors 1a and 1b are obtained from the captured images obtained from the three imaging devices 27a to 27c.
- the projection image used for the electronic projector 1c is obtained from the four frame images obtained by imaging in the imaging area 29 d and the two frame images obtained by imaging in the imaging area 29 e.
- An electronic projector 1d is created from the remaining two frame images of the frame image created in the imaging area 29 e and the four frame images obtained in the imaging area 29 f. Create the projection image to be used.
- each imaging device is compared to the case where the same number of imaging devices as electronic projectors are used. It is possible to capture a large amount of the frame image in the captured image by this, and as a result, the resolution of the frame image is increased. Therefore, when using six imaging devices, a high-resolution solid image with improved resolution can be obtained compared to using the same number of imaging devices as the electronic projector. As many imaging devices as electronic projectors Assuming that stereoscopic images with the same resolution as when using a vice are obtained, the resolution of each imaging device can be lower than when using the same number of imaging devices as an electronic projector. And an inexpensive imaging device can be used. This applies to the case where the number of imaging devices and electronic projectors used is not limited to the above example, but the number of imaging devices used is greater than the number of electronic projectors used. ..
- this embodiment uses one imaging device when configured as an imaging device, and uses four electronic projectors when configured as a display device. Is.
- FIG. 34 (a) shows the imaging area of the imaging device for the polygonal mirror 5, and here the number of mirrors constituting the polygonal mirror 5 is 24.
- the polygon mirror 5 may be a polygon mirror 5 used when displaying a solid image.
- the imaging device and the electronic projector may be used interchangeably. Alternatively, it may be arranged at the center of the arrangement of four electronic projectors (on the central axis P in FIG. 19). Further, it may be provided in an imaging device used exclusively for creating a projected video. Note that an imaging area by this imaging device is an imaging area 29.
- the imaging device for the imaging region 29 is an imaging device 27, and the four electronic projectors to be used are electronic projectors 1a, lb, 1c, and Id.
- the imaging area 29 of the imaging device 27 completely includes the entire polygonal mirror 5. In this case, it is preferable to include the imaging region as much as possible.
- the imaging picture thus obtained to the image pickup device 2 7 becomes that all the frame images included arranged in a ring shape.
- a projected image is created by arranging six frame images in an arc shape according to the arrangement of the mirrors in the polygon mirror 5. In this way, projection images used for the respective electronic projectors 1a to 1d are created. .
- FIG. 35 is a conceptual diagram of another embodiment for creating a projected image.
- a plurality of imaging devices 27 are arranged around the imaging target 30 and each captures the side surface of the imaging target 30 from different directions. To do.
- the number equal to the number of frame images when displaying a stereoscopic image with an electronic projector, that is, the number of mirrors constituting a polygonal mirror is used.
- each imaging device 27 corresponds to each of the mirrors constituting such a polygonal mirror, and directly and simultaneously images the side surfaces of the same imaging object 30 from different directions. In this way, each imaging device 27 can A captured image is obtained as a frame image irradiated on the corresponding mirror of the square mirror.
- the frame images used for the stereoscopic display are extracted from the captured images from the respective image capturing devices 27, and the image capturing device 2 7 when capturing the object 30 to be imaged.
- the frame image is distributed to each electronic projector used for stereoscopic display in this arrangement order.
- a polygon mirror is composed of 24 mirrors
- the number of imaging devices 27 is 24 (so that 24 frames can be obtained)
- the number of electronic projectors used is If the number is four, the obtained 24 frame images are divided into six pieces, and the divided six frame images are sequentially assigned to each electronic projector.
- the six frames allocated in this way are arranged in an arc shape according to the arrangement of the mirrors in the polygonal mirror as shown in Fig. 35 (c). A projection image of the projector is created. ⁇
- this specific example directly images the imaging target 30 with the imaging device 27 without using a polygonal mirror, so it can handle a large imaging target 30 and has a high degree of freedom.
- high-resolution frame images can be obtained, and high-resolution stereoscopic images can be obtained.
- the display device according to the sixth embodiment obtains a stereoscopic image with a higher resolution than the display device according to the fifth embodiment described in FIGS. 19 to 32. In addition, it is possible to reduce the number of imaging devices used.
- FIG. 36 is a flowchart showing a process of creating a projection image corresponding to a projection image resource (source).
- step 101 when a video output request is received from the user of the display device (step 100), it is determined whether or not the video resource is a camera (imaging device) (step 101). Assuming that the captured image of the camera is used, the camera is connected (activated) (step 102), and the captured image is acquired from the camera (step 103). Then, for each camera, the polygon mirror takes charge (that is, captures for the frame image). The number of mirrors is obtained (step 104), and the frame image from that number of mirrors is cut out (step 5).
- the video resource is a camera (imaging device)
- the number of mirrors in charge of the polygon mirror is determined for each electronic projector (step), and a projection image in which the corresponding frame image is arranged for each of the mirrors in consideration of its position and arrangement is obtained.
- Create step 109). Then, the created projection images are respectively supplied to the corresponding electronic projectors for projection (step 110). As a result, a stereoscopic image is formed and displayed on the previous stereoscopic screen.
- Step 101 If the resource is something other than a camera such as a computer graphic (step 101), select and set the video resource (step 106), and capture the video, that is, the frame video from this resource (step 1). 07). Then, by performing the processing of steps 108 and 109 on the captured frame image, a projection image for each electronic projector is created and projected to display a stereoscopic image such as an animation, for example. (Step 1 1 0).
- FIG. 37 is a perspective view showing a schematic structure of this embodiment.
- Figure 38 shows the system configuration.
- FIG. 39 is a schematic sectional view showing the state of use.
- Figure 40 shows this
- FIG. 3 is a schematic diagram of a projection image projected by an electronic projector employed in an embodiment.
- a spherical body or an ellipsoid that is long in the vertical direction is adopted as the stereoscopic screen 3, and a half mirror is adopted as the polygon mirror 5a.
- the electronic projector 1 is arranged on the central axis P below the stereoscopic screen 3 consisting of a sphere or an ellipsoid that is long in the vertical direction.
- a polygonal mirror 5 a configured as shown in FIG.
- the polygon mirror 5a is formed of a half mirror, and the projected image projected from the electronic projector 1 is reflected by the inner surface to the solid screen, and the polygon mirror 5a is surrounded by a half mirror. You can see the image projected on the standing screen 3 through.
- the polygon mirror 5a is formed so as to cover the upper part of the three-dimensional screen 3 with an umbrella.
- This polygon mirror 5a is composed of a plurality of mirrors arranged on a concentric circle with the center axis P as the center, as in Fig. 1. It consists of two upper and lower mirror groups with different angles. That is, the polygon mirror 5 a is composed of two mirror groups, a first polygon mirror group 5 b formed on the inner side and a second polygon mirror group 5 c formed continuously on the outer side. Composed.
- the first polygon mirror group 5b is arranged at an angle close to the horizontal direction
- the second polygon mirror group 5c is arranged at an angle close to the vertical direction. These two angles are appropriately set depending on the shape of the three-dimensional screen 3.
- the angles of the mirrors of the polygonal mirror group 5a are set so as to reflect toward the center of the central axis P.
- the image reflected by the first polygonal mirror group 5b is projected on the projection image plane 50 of the stereoscopic screen 3
- the image reflected by the second polygonal mirror group 5c is It is reflected in the center of the 3D screen.
- the polygon mirror 5a since the polygon mirror 5a employs a half mirror, an image displayed on the stereoscopic screen 3 is displayed by an extension line of the projection light refracted on the stereoscopic screen 3. Can see. That is, by looking at the stereoscopic screen 3 through the half mirror (polygonal mirror 5 a), it is possible to make the projected light toward the stereoscopic screen 3 coincide with the viewer's line of sight.
- a directional reflection screen 11 and a viewing angle limiting filter 2 are attached to the projected image plane 50 of the stereoscopic screen 3.
- the directional reflective screen 11 is different from the first embodiment.
- the projected image plane 50 of this embodiment is formed with a curved surface with the center protruding not only in the left and right direction but also in the up and down direction, and therefore, a mirror sheet that retroreflects both vertically and horizontally is employed.
- FIG. 40 shows a projected image projected from the electronic projector 1.
- This projection image corresponds to the upper and lower two-stage polygon mirror 5a, and is a first projection consisting of a plurality of frame images arranged inside a ring corresponding to the first polygon mirror 5b.
- An image 4 1 c and a second projection image 4 1 d composed of a plurality of frame images arranged outside the ring shape corresponding to the second polygon mirror 5 c are provided.
- the polygon mirror 5 with the half mirror, it is possible to see with the same line of sight as the projection light directed to the stereoscopic screen 3.
- a three-dimensional screen 3 formed in a circular arc surface in the vertical direction is adopted, and a mirror that retroreflects in both the vertical and horizontal directions instead of a simple corner mirror sheet on the projected image plane 50.
- a seat is used.
- the present invention is applicable to various information display devices.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Business, Economics & Management (AREA)
- Accounting & Taxation (AREA)
- Marketing (AREA)
- Theoretical Computer Science (AREA)
- Optics & Photonics (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Projection Apparatus (AREA)
- Stereoscopic And Panoramic Photography (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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US11/630,152 US7771054B2 (en) | 2004-09-10 | 2004-09-10 | Display system and camera system |
JP2006534998A JP4643583B2 (ja) | 2004-09-10 | 2004-09-10 | 表示装置及び撮像装置 |
PCT/JP2004/013582 WO2006027855A1 (ja) | 2004-09-10 | 2004-09-10 | 表示装置及び撮像装置 |
US12/801,707 US20100259599A1 (en) | 2004-09-10 | 2010-06-22 | Display system and camera system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2004/013582 WO2006027855A1 (ja) | 2004-09-10 | 2004-09-10 | 表示装置及び撮像装置 |
Related Child Applications (1)
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US12/801,707 Division US20100259599A1 (en) | 2004-09-10 | 2010-06-22 | Display system and camera system |
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WO2006027855A1 true WO2006027855A1 (ja) | 2006-03-16 |
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PCT/JP2004/013582 WO2006027855A1 (ja) | 2004-09-10 | 2004-09-10 | 表示装置及び撮像装置 |
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US (2) | US7771054B2 (ja) |
JP (1) | JP4643583B2 (ja) |
WO (1) | WO2006027855A1 (ja) |
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US8857999B2 (en) | 2008-06-17 | 2014-10-14 | The Invention Science Fund I, Llc | Projection in response to conformation |
US8936367B2 (en) | 2008-06-17 | 2015-01-20 | The Invention Science Fund I, Llc | Systems and methods associated with projecting in response to conformation |
JP2010032952A (ja) * | 2008-07-31 | 2010-02-12 | National Institute Of Information & Communication Technology | 立体ディスプレイ |
JP2010091899A (ja) * | 2008-10-10 | 2010-04-22 | Fuji Xerox Co Ltd | 立体投影装置 |
WO2013005795A1 (ja) * | 2011-07-05 | 2013-01-10 | 国立大学法人東京農工大学 | 立体表示装置 |
JPWO2013005795A1 (ja) * | 2011-07-05 | 2015-02-23 | 国立大学法人東京農工大学 | 立体表示装置 |
JP2015530788A (ja) * | 2012-07-30 | 2015-10-15 | バーソロミュー ジー ユキック | 3次元画像メディアを生成するシステム及び方法 |
WO2016009588A1 (ja) * | 2014-07-18 | 2016-01-21 | 国立研究開発法人情報通信研究機構 | 画像表示装置 |
JP2016024311A (ja) * | 2014-07-18 | 2016-02-08 | 国立研究開発法人情報通信研究機構 | 画像表示装置 |
US9927628B2 (en) | 2014-07-18 | 2018-03-27 | National Institute Of Information And Communications Technology | Image display apparatus |
JP2017151283A (ja) * | 2016-02-25 | 2017-08-31 | 日本電信電話株式会社 | 映像表示装置及び映像表示方法 |
WO2017199855A1 (ja) * | 2016-05-17 | 2017-11-23 | 国立研究開発法人情報通信研究機構 | 立体画像制作支援装置 |
US11297305B2 (en) | 2016-05-17 | 2022-04-05 | National Institute Of Information And Communications Technology | Three-dimensional image production support apparatus |
Also Published As
Publication number | Publication date |
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US20100259599A1 (en) | 2010-10-14 |
US20080036969A1 (en) | 2008-02-14 |
JPWO2006027855A1 (ja) | 2008-05-08 |
JP4643583B2 (ja) | 2011-03-02 |
US7771054B2 (en) | 2010-08-10 |
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