WO2000059235A1 - Affichage d'image tridimensionnelle - Google Patents
Affichage d'image tridimensionnelle Download PDFInfo
- Publication number
- WO2000059235A1 WO2000059235A1 PCT/JP1999/005669 JP9905669W WO0059235A1 WO 2000059235 A1 WO2000059235 A1 WO 2000059235A1 JP 9905669 W JP9905669 W JP 9905669W WO 0059235 A1 WO0059235 A1 WO 0059235A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- image display
- image
- display means
- point
- dimensional
- Prior art date
Links
Classifications
-
- 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
- H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
- H04N13/305—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using lenticular lenses, e.g. arrangements of cylindrical lenses
-
- 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
- H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
- H04N13/307—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using fly-eye lenses, e.g. arrangements of circular lenses
-
- 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
- H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
- H04N13/31—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using parallax barriers
Definitions
- the present invention relates to a three-dimensional image display device, and can be used particularly in the following fields.
- 3Arts Art works, paintings, graphic arts, interiors, exhibitions for museums and museums, etc.
- 4Amusement field Movies, games, various amusement equipment, attractions, exhibits at theme halls, etc., sports training and practice, etc.
- 5Information '' Multimedia field TV broadcast, video conference, video phone, virtual reality, internet, etc.
- parallax is determined by the distance between the left and right eyeballs. You. Therefore, if two two-dimensional images are recognized as three-dimensional images, they will be recognized as different images by the observer.
- the two two-dimensional images As a three-dimensional image, even if the observer who observes these images changes the observation direction, the three-dimensional image observed from that direction is not visible. As usual, they are merely observing the same three-dimensional image at different positions.
- the above method has a problem that observer's fatigue is great because the two-dimensional image is forcibly recognized as a three-dimensional image by seeing different images with artificial parallax with the left and right eyes. .
- the image can be viewed as a three-dimensional image, without special glasses, etc.
- image display Integral photography is known as a three-dimensional image display method that can display images even in an environment where it is difficult to use the device, and enables simultaneous observation by another person using only one image display device. Have been.
- This method comprises, as shown in FIG. 6, an image display means 3 arranged on the side of the center of curvature 2 b of the convex surface of the convex lens array 2 in which a plurality of convex lenses 2 a are aligned, and this image display means 3 And an image creating means (not shown) for creating an image.
- the image display means 3 may be a liquid crystal display, a cathode ray tube image display, a plasma display, a liquid crystal projector or a film projector and a screen, or a printed or film-developed image.
- the convex lens array 2 is composed of a plurality of convex lenses 2a, and is also called a ⁇ -eye lens plate or a compound-eye lens because it resembles the compound eye of an insect.
- These convex lenses 2a can be arranged, for example, in a grid pattern as shown in FIG. 7 (a), or in a honeycomb pattern as shown in FIG. 7 (b).
- the display target may be a two-dimensional or three-dimensional character or graphic image created by a live-action video or computer graphics.
- an image when the display target image 4 to be displayed is projected on the image display means 3 after passing through the convex center point C j of the convex surface of the convex lens 2a is displayed on, for example, a liquid crystal display device.
- a liquid crystal display device As shown in FIG. 9, when light is irradiated by the backlight 6 from the right side of the image display means 3, the light goes to a predetermined three-dimensional space through the center of curvature C j of the convex surface of the convex lens 2a. Then, a plurality of light rays R corresponding to each point displayed in the three-dimensional space converge to become a new light source 0, and the observer W can observe the three-dimensional image by observing the light source 0.
- a light shielding plate 12 in which a plurality of bin holes 12a are aligned as shown in FIG. 10 was used, and the light shielding plate 12 was disposed at a predetermined distance from the light shielding plate 12.
- the three-dimensional image display device 11 can also be composed of an image display means 13 and an image creation means (not shown) for creating an image on the image display means 13 (a number of light-shielding plates 12 are provided).
- the light-shielding plate 12 is arranged in a grid pattern as shown in FIG. 11A, similarly to the case of the convex lens array 2. As shown in Fig.
- Japanese Patent Application Laid-Open No. 4-13339 discloses that a convex lens array is used for displaying a three-dimensional image in order to record a still image of the three-dimensional image.
- An XYZ plotter and a recording medium for recording a three-dimensional image still image on a recording medium by mechanically moving a point light source while using the same are disclosed.
- Japanese Patent Application Laid-Open No. H10-1866275 discloses that it is used for the above-mentioned integral photography, is easy to manufacture, has no noticeable lens granularity, has good imaging performance, and has sufficient brightness.
- 3D image display device capable of displaying 3D images with The three-dimensional image display device is characterized in that a gap between a plurality of lens elements constituting a lens array is shielded by a light shielding member.
- the image to be displayed on the image display means 3 is created by calculation by the image creation means in the manner shown in FIG. 8, but the amount of calculation in this case is a predetermined amount. It is the product of the number of points that make up the display target image to be displayed in the three-dimensional space and the number of lenses in the lens array (or the number of binholes in the light-shielding plate). Requires a huge amount of computation. In particular, in order to create moving images, it is necessary to create a large number of images at high speed, which makes a three-dimensional image display device large and expensive. Disclosure of the invention
- the present invention has been made in view of the above-described problems of the conventional three-dimensional image display device, and has been made to create an image at a high speed by remarkably reducing the amount of calculation when the image is created. It is an object of the present invention to provide a three-dimensional image display device capable of performing the following.
- a three-dimensional image display device comprises: a convex lens array in which a plurality of convex lenses are aligned; an image display means disposed on or near a focal plane of the convex lens array; A straight line extending from each pixel of the display means and passing through the center of curvature of each convex surface of the plurality of convex lenses toward the direction of the display target image to be displayed in a predetermined three-dimensional space intersects the display target image.
- Calculating means for calculating a point which is the most distant from the image display means; and an image for instructing the image information of the point calculated by the calculating means to be displayed on a corresponding pixel of the image display means.
- image control means for calculating a point which is the most distant from the image display means; and an image for instructing the image information of the point calculated by the calculating means to be displayed on a corresponding pixel of the image display means.
- the three-dimensional image display device comprises: a light shielding plate in which a plurality of bin holes are aligned; an image display means arranged at a predetermined distance from the light shielding plate; A straight line that passes from each pixel of the image display means and passes through each of the plurality of binholes toward a display target image to be displayed in a predetermined three-dimensional space is a point where the straight line intersects with the display target image.
- the amount of calculation by the calculation means is determined by the number of pixels on the image display means and, for example, the resolution in the depth direction of the display target image to be displayed in a predetermined three-dimensional space. Since it is a product, it is possible to significantly reduce the amount of computation as compared to the past. Also, in this method, since the hidden surface processing is performed at the same time, the amount of calculation is further reduced, and an image can be created at high speed.
- One image display unit is provided for each of the plurality of convex lenses or the plurality of pinholes, and a plurality of the image display units and the plurality of convex lenses, or a plurality of the image display units and the plurality of pins are provided.
- a three-dimensional image display device can be configured with the hall.
- a plurality of the image display means may be provided for one convex lens array or one light shielding plate.
- these three-dimensional image display devices are provided with a plurality of image display means, an image display surface of an arbitrary size can be configured, and a large-screen three-dimensional image display device can be provided.
- each pixel of the image display means passes through a center point of curvature of each convex surface of the plurality of convex lenses or each of the plurality of binholes, and moves toward a display target image to be displayed in a predetermined three-dimensional space.
- a diffuser can be placed between the points where the straight lines intersect each other and the point where the observer's eyes are located.
- the diffuser also observes points on the image display means that do not exist on the straight line. It becomes possible, and the apparent pixel size becomes smaller than the diameter of the convex lens or the distance between the binholes, and the resolution of the image projected on a predetermined three-dimensional space increases.
- FIG. 1 is a schematic diagram for explaining a calculation method by a calculation means in the first embodiment of the three-dimensional image display device according to the present invention.
- FIG. 2 is a schematic diagram for explaining a calculation method by a calculation means in the first embodiment of the three-dimensional image display device according to the present invention.
- FIG. 3 is a schematic diagram showing a second embodiment of the three-dimensional image display device according to the present invention, in which one convex lens is associated with one image display means.
- FIG. 7 is a schematic diagram showing a third embodiment of the three-dimensional image display device according to the present invention, and is a diagram showing a case where one image display means is associated with one pinhole.
- FIG. 5 is a schematic diagram for explaining a fourth embodiment of the three-dimensional image display device according to the present invention, wherein (a) shows a case where there is no diffusion plate, and (b) shows a case where a diffusion plate is arranged.
- FIG. 5 is a schematic diagram for explaining a fourth embodiment of the three-dimensional image display device according to the present invention, wherein (a) shows a case where there is no diffusion plate, and (b) shows a case where a diffusion plate is arranged.
- FIG. 6 is a schematic diagram showing a three-dimensional image display device using a convex lens array in which a plurality of convex lenses are arranged as an example of a conventional three-dimensional image display device.
- FIG. 7 is a schematic diagram showing an example of a method of arranging convex lenses in the three-dimensional image display device of FIG. 6, wherein (a) is arranged in a grid pattern, and (b) is arranged in a honeycomb pattern. Show the case.
- FIG. 8 shows a method of calculating an image when a display target image to be displayed in a predetermined three-dimensional space is projected on an image display means via a convex lens array in a conventional three-dimensional image display device.
- FIG. 3 is a schematic diagram for explaining an example of the first embodiment.
- FIG. 9 is a schematic diagram for explaining a method of displaying a three-dimensional space in a space by a conventional three-dimensional image display device.
- FIG. 10 is a schematic view showing another example of a conventional three-dimensional image display device, which is a three-dimensional image display device using a light shielding plate in which a plurality of binholes are aligned.
- FIG. 11 is a schematic view showing an example of a method of arranging convex lenses in the three-dimensional image display device of FIG. 10, wherein (a) is arranged in a lattice, and (b) is arranged in a honeycomb. The following shows the case. BEST MODE FOR CARRYING OUT THE INVENTION
- the image display means 3 includes a liquid crystal display device, a cathode ray tube image display device, a plasma display, a liquid crystal projector or a film projector and a screen, or a printed or film-developed image. Can be used.
- a display target an image of a two-dimensional or three-dimensional character or figure created by a live-action video or a computer graphic can be used.
- the three-dimensional image display device further includes, in addition to the convex lens array 2 and the image display means 3, an arithmetic unit (not shown) and an image control unit.
- the arithmetic means passes through each of the pixels D ij of the image display means 3 and passes through the center of curvature C j of the convex surface of each of the plurality of convex lenses 2 a and displays the result in a predetermined three-dimensional space.
- the point P i that is the point at which the straight line L heading in the direction of the display target image 4 to intersect with the display target image 4 and that is farthest from the image display means 3 is calculated.
- image control The means instructs the image information of the point P i calculated by the calculating means to be displayed on the pixel D ij of the corresponding image display means 3.
- FIG. 2 shows a display target image 4 to be displayed in a predetermined three-dimensional space from each pixel D ij of the image display means 3, passing through the center of curvature C j of each convex surface of the plurality of convex lenses 2 a.
- 7 is a schematic diagram showing a method for obtaining a point P i at which a straight line L heading in the direction intersecting with a display target image 4 and farthest from the image display means 3 is obtained.
- the image display means 3 is disposed below the convex lens array 2, the distance between them is h, and the center of curvature of the convex surface of the convex lens 2a is C j. Then, it is assumed that an image (reference numeral 4 in FIG. 1) displayed in a predetermined three-dimensional space exists above the convex lens array 2.
- a straight line L from the pixel D ij of the image display means 3 to the direction of the display target image 4 to be displayed in a predetermined three-dimensional space through the center of curvature C j of the convex surface of the convex lens 2 a is formed.
- a point that intersects the display target image 4 and is farthest from the image display means 3 is defined as P i.
- the foot of the perpendicular drawn from P i to the center of curvature 2b of the convex surface of the convex lens array 2 is Q j
- the triangle C j C j 'D i j is similar to the triangle P i Q j C j
- D ij C j ′ can be immediately obtained from the positional relationship between the convex lens array 2 and the image display means 3, if one of C j Q j or P i Q j is measured, the other is calculated. Can be obtained by
- the amount of calculation by the calculation means is It is the product of the prime number and the resolution in the depth direction of the display target image to be displayed in the predetermined three-dimensional space.Since only the points actually observed are calculated, hidden surface processing must be performed at the same time. Thus, the amount of calculation can be significantly reduced as compared with the conventional case.
- An example of a specific apparatus for performing the above method is a three-dimensional tomographic image captured by CT (Computerized tomography).
- CT Computerized tomography
- the data is arithmetically processed by a personal computer, and the above-described arithmetic operation is performed to obtain an image data to be displayed on the image display means 3.
- this image data is displayed on a liquid crystal display device as image display means 3, and when a convex lens array is arranged in front of the liquid crystal display device, the three-dimensional tomographic image is obtained in a predetermined three-dimensional space in front of the convex lens array. Is displayed.
- a light shielding plate 12 in which a plurality of pinholes 12a are arranged as shown in FIG. 10 is used. It is also possible to configure the three-dimensional image display device according to the present invention by the control means.
- the operation in the case where the binhole 12a is used instead of the convex lens array 2 is the same as in the case of the conventional example, and the description is omitted.
- one image display unit 3 is provided for the convex lens array 2 in which the plurality of convex lenses 2a are aligned, but in the present embodiment, each of the plurality of convex lenses 2a is provided.
- One image display means 3 (3A to 3D) is provided for the three-dimensional image display device 1, and the entire 3D image display device 1 is composed of a plurality of image display means 3 (3A to 3D) and a plurality of convex lenses 2a. ing.
- one image display means 13 (13A to 13A) is provided for each of the plurality of pinholes 12a. 13D), and the entire three-dimensional image display device 11 can be constituted by a plurality of image display means 13 (13A to 13D) and a plurality of pinholes 12a. No. The same effects as those of the second embodiment can be obtained.
- the convex lens 2a or the pinhole 12a and the image display means 3 (or 13) do not have to correspond one-to-one, or at least one convex lens.
- an image display surface of any size can be configured, and a large screen It is also possible to provide a three-dimensional image display device.
- each pixel of the image display means 3 passes through the center of curvature C j of each convex surface of the convex lens 2a of the convex lens array 2 and passes through a predetermined three-dimensional area.
- a diffuser plate 5 such as ground glass is disposed between a point 0 where straight lines directed toward the display target image to be displayed in the space intersect each other and a point where the eyes of the observer W are located.
- the observer W is provided with a point on a straight line connecting the observer W's eyes and the center of curvature C j of each convex lens 2a. Since only one is observed, only one pixel is observed for one convex lens 2a, and the apparent pixel size matches the diameter of the convex lens 2a.
- the diffused light D diffused by the diffuser 5 becomes the combined light S and enters the eyes of the observer W. It is also possible to observe points that do not lie on a straight line connecting the eyes of the observer W and the center of curvature C j of each convex lens 2a, and the apparent pixel size is smaller than the diameter of the convex lens 2a, and the resolution of the projected image is reduced. Get higher.
- the diffusion plate 5 can also be used when the light-shielding plate 12 is used instead of the convex lens array 2, and in this case, each pixel of the image display means is used. Even if the observer's eyes are not located on a straight line that passes through each of the plurality of pinholes and that is to be displayed in the predetermined three-dimensional space in the direction of the display target image, the diffuser plate 5 will A point on the non-existent image display means can also be observed, the apparent pixel size becomes smaller than the distance between the pinholes, and the resolution of the image projected in a predetermined three-dimensional space increases. It should be noted that a moving image can be displayed in a predetermined three-dimensional space by continuously performing the calculation by the calculating means and the command by the image control means in time. The afterimage phenomenon can be used, and the apparent resolution can be improved.
- the present invention it is possible to significantly reduce the amount of calculation when creating an image, as compared with the related art, so that an image can be created at high speed.
- the scale of the three-dimensional image display device can be reduced by reducing the amount of calculation, and a more inexpensive three-dimensional image display device can be provided.
- an image display surface of an arbitrary size can be configured, and a large-screen three-dimensional image display device is provided. Can be.
- the apparent pixel size can be made smaller than the diameter of the convex lens or the distance between the bin holes.
- a three-dimensional image display device capable of increasing the resolution of an image projected on space can be provided.
- a three-dimensional image display device capable of displaying a clearer moving image can be provided.
- 3Arts field works of art, paintings, graphic arts, interiors, museums, museums, etc.
- 4Amusement field Movies, games, various amusement equipment, attractions, exhibits at theme halls, etc., sports training and practice, etc.
- 5Information '' Multimedia field TV broadcasting, video conferencing, video telephony, virtual reality, internet, etc.
- 6Simulation field Practice and operation of driving automobiles, airplanes, ships, and spaceships Plans, etc.
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Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99947896A EP1170961A4 (en) | 1999-03-26 | 1999-10-14 | THREE DIMENSIONAL IMAGE DISPLAY |
AU61228/99A AU6122899A (en) | 1999-03-26 | 1999-10-14 | Three-dimensional image display |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11/84196 | 1999-03-26 | ||
JP8419699 | 1999-03-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000059235A1 true WO2000059235A1 (fr) | 2000-10-05 |
Family
ID=13823730
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1999/005669 WO2000059235A1 (fr) | 1999-03-26 | 1999-10-14 | Affichage d'image tridimensionnelle |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1170961A4 (ja) |
AU (1) | AU6122899A (ja) |
WO (1) | WO2000059235A1 (ja) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006133455A (ja) * | 2004-11-05 | 2006-05-25 | Matsushita Electric Ind Co Ltd | 三次元画像表示装置 |
JP2006146597A (ja) * | 2004-11-19 | 2006-06-08 | Dhs Ltd | 三次元画像の作成方法及び表示方法 |
JP2006162945A (ja) * | 2004-12-07 | 2006-06-22 | Hitachi Displays Ltd | 立体視表示装置 |
US7265775B2 (en) | 2002-03-28 | 2007-09-04 | Kabushiki Kaisha Toshiba | Three-dimensional display apparatus |
JP2008009046A (ja) * | 2006-06-28 | 2008-01-17 | Osaka Univ | 三次元画像再生装置 |
CN103412411A (zh) * | 2013-07-29 | 2013-11-27 | 华映视讯(吴江)有限公司 | 立体显示装置 |
TWI634350B (zh) * | 2016-08-10 | 2018-09-01 | 群睿股份有限公司 | 影像顯示方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104345460A (zh) * | 2013-08-02 | 2015-02-11 | 大昱光电股份有限公司 | 立体显示装置 |
Citations (3)
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JPH0282376A (ja) * | 1988-09-20 | 1990-03-22 | Fujitsu Ltd | 3次元物体の投影図作成方式 |
JPH10304402A (ja) * | 1997-04-24 | 1998-11-13 | Shimizu Corp | 3次元画像の記録/再生システム |
EP0899969A2 (en) * | 1997-08-29 | 1999-03-03 | Mixed Reality Systems Laboratory Inc. | 3D image reconstructing apparatus and 3D image capturing apparatus |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH05273675A (ja) * | 1992-03-26 | 1993-10-22 | Fujitsu Ltd | 立体像の記録および再生方式 |
JP3268586B2 (ja) * | 1993-09-24 | 2002-03-25 | 富士通株式会社 | 立体映像の表示装置と撮影記録装置 |
US5680171A (en) * | 1993-10-21 | 1997-10-21 | Lo; Allen Kwok Wah | Method and apparatus for producing composite images and 3D pictures |
-
1999
- 1999-10-14 WO PCT/JP1999/005669 patent/WO2000059235A1/ja not_active Application Discontinuation
- 1999-10-14 AU AU61228/99A patent/AU6122899A/en not_active Abandoned
- 1999-10-14 EP EP99947896A patent/EP1170961A4/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0282376A (ja) * | 1988-09-20 | 1990-03-22 | Fujitsu Ltd | 3次元物体の投影図作成方式 |
JPH10304402A (ja) * | 1997-04-24 | 1998-11-13 | Shimizu Corp | 3次元画像の記録/再生システム |
EP0899969A2 (en) * | 1997-08-29 | 1999-03-03 | Mixed Reality Systems Laboratory Inc. | 3D image reconstructing apparatus and 3D image capturing apparatus |
Non-Patent Citations (1)
Title |
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See also references of EP1170961A4 * |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7265775B2 (en) | 2002-03-28 | 2007-09-04 | Kabushiki Kaisha Toshiba | Three-dimensional display apparatus |
JP2006133455A (ja) * | 2004-11-05 | 2006-05-25 | Matsushita Electric Ind Co Ltd | 三次元画像表示装置 |
JP2006146597A (ja) * | 2004-11-19 | 2006-06-08 | Dhs Ltd | 三次元画像の作成方法及び表示方法 |
JP4567422B2 (ja) * | 2004-11-19 | 2010-10-20 | 有限会社ディー・エッチ・エス | 三次元画像の作成方法 |
JP2006162945A (ja) * | 2004-12-07 | 2006-06-22 | Hitachi Displays Ltd | 立体視表示装置 |
JP2008009046A (ja) * | 2006-06-28 | 2008-01-17 | Osaka Univ | 三次元画像再生装置 |
CN103412411A (zh) * | 2013-07-29 | 2013-11-27 | 华映视讯(吴江)有限公司 | 立体显示装置 |
TWI634350B (zh) * | 2016-08-10 | 2018-09-01 | 群睿股份有限公司 | 影像顯示方法 |
Also Published As
Publication number | Publication date |
---|---|
AU6122899A (en) | 2000-10-16 |
EP1170961A1 (en) | 2002-01-09 |
EP1170961A4 (en) | 2006-04-05 |
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