WO2000018141A1 - Vorrichtung zur erzeugung dreidimensionaler bilder - Google Patents
Vorrichtung zur erzeugung dreidimensionaler bilder Download PDFInfo
- Publication number
- WO2000018141A1 WO2000018141A1 PCT/EP1999/006611 EP9906611W WO0018141A1 WO 2000018141 A1 WO2000018141 A1 WO 2000018141A1 EP 9906611 W EP9906611 W EP 9906611W WO 0018141 A1 WO0018141 A1 WO 0018141A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pixel
- image
- pixels
- heights
- height
- 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
- H04N13/388—Volumetric displays, i.e. systems where the image is built up from picture elements distributed through a volume
Definitions
- the invention relates to an image carrier for generating autostereoscopically viewed images with perspective views of the recorded object field.
- a three-dimensional display in which several simple lenses are placed on a display surface, which include a convex lens with a short focal length, a light source and an elastic drive positioned in between.
- a convex lens with a short focal length By varying the distance between the convex lens and the light source using the flexible drive, the position of the image of the light source imaged by the convex lens is changed in order to finally project imaginary images.
- the device also includes the possibility that these simple lenses can be organized into geometrical figures, for example cylindrical or spherical bodies, so that the projection of the imaginary “front or back image” can be made possible by the viewer within a viewing radius of 360 °
- Direct projection techniques for the eye which produce imaginary images imaginatively in space by zooming with simple lenses, and use a perceptual psychological effect (without glasses or similar aids), which is based on an empirically visually acquired memory, that the distance assessment of an object is related to the size of its perceived image.
- a disadvantage of the anaglyph process mentioned is the high loss of color components.
- the above-mentioned shutter glasses method has the disadvantage of having to use special glasses and, due to the image division, to use only half the refresh rate.
- US 4,571,616 and DE 35 29 819 the three-dimensional image effect is impaired proportionally by changing the viewing angle and the distance to the screen in order to be able to perceive larger spatial perspectives of the image objects.
- the latter method requires a high level of technical effort in order to increase the spatial image effect in such a way that hidden image contents can be conveyed to the viewer. This is done by duplicating the vertical lines, by additional projections, or by adapting them to the viewing position (calculation).
- this method has the disadvantage that the stereoscopy is lost when the screen is rotated around an orthogonal screen.
- This disadvantage applies to rotating screens or screens with a horizontal screen level ("Responsive Workbench" - Chip 5/98 p.32), which are used by several viewers at the same time.
- the vertical line screen method is used.
- the method of direct projection techniques using simple lenses contains, compared with the above methods, considerable quality reductions with higher technical and financial expenditure, which multiplies considerably with increasingly complex mediated image content.
- the object of the invention is to develop a screen whose surface structure can produce a three-dimensional image, in which no separate technical aids are necessary in order to perceive the image depth.
- This screen is to be designed in such a way that no fixed positioning of the viewer is required. zen or no new image to be calculated when changing the position without having to accept the quality of perception. In particular, it must be taken into account that the stereoscopic effect is retained when the screen is rotated around an orthogonal screen.
- the screen is preferably composed of individual LED segments (pixels), which can each generate the three additive primary colors.
- LEDs can be used both optically active elements and reflecting elements of suitable dimensions.
- the LEDs are located as heads on a height-adjustable pixel carrier. When activated, these pixel carriers can be moved to different height positions (pixel heights) independently of one another. A distinction is made between the pixel heights in the zero position (corresponding to the zero level) and the pixel heights differing in the direction of the viewer and the opposite direction.
- the zero position is not necessarily identical to the starting position, since you can move the pixel level to a target height, which then generates the corresponding zero level. With appropriate control, the pixels can be lowered and / or raised below or above the zero level.
- the pixel carrier can e.g.
- the spatial depth information can e.g. are converted proportionally into pixel heights from a Z buffer, i.e. without further intermediate steps.
- other drive units with correspondingly short activation times e.g. using other field-electric effects, etc.
- the piezo crystals mentioned can also be used.
- the advantageous effect of the invention is that a height profile is generated by the movable screen surface to the previous methods.
- This height profile enables a pronounced spatial depth perception of the image signal from a side view, but also from all other viewing directions.
- the information about the image depth can be used directly to convert it into relief-like image depth, i.e. that the image color signals with the image depth of the objects represented by the pixel heights will complete a picture of new quality.
- the greater the difference in height and its resolution in individual steps the more the possibility of generating an actual spatial depth that corresponds to the depth reproduced by color and brightness improves.
- each relief structure has one Drawing file is assigned clock syncron.
- the above term relief structure defines itself as the screen surface formed from the pixel matrix with a fixed height of each individual pixel.
- FIG. 1 a single LED segment of a device for generating three-dimensional images can be seen schematically in FIG. 1, which contains a piezo element (1) in the pixel carrier (3) which, when a voltage is applied in the direction (7 ) Expands viewer position.
- This pixel carrier (3) has a foot (6), over which there is a further piezo element (2) in the form of a shell, which carries the entire mechanism with its end or is attached to a mounting plate (4) with its end, and which allows a further basic movement away from the viewer (8).
- the entire device for generating three-dimensional images consists here e.g. (for use as an advertising board) from a relatively large 480 x 270 matrix of the segments mentioned and has the size 160 cm x 90 cm.
- the pixel carrier (3) runs in 3 linearly arranged electric ring coils (4).
- An iron core (5) is integrated in the pixel carrier, which is positioned at the appropriate height by the electric ring coils.
- a spiral spring (6) is located on the pixel carrier, which conveys the pixel carrier to the starting position when it is not activated.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002344042A CA2344042A1 (en) | 1998-09-22 | 1999-09-08 | Device for producing three-dimensional images |
AU57464/99A AU5746499A (en) | 1998-09-22 | 1999-09-08 | Device for producing three-dimensional images |
JP2000571673A JP2002525990A (ja) | 1998-09-22 | 1999-09-08 | 3次元画面描画装置 |
EP99944625A EP1104628A1 (de) | 1998-09-22 | 1999-09-08 | Vorrichtung zur erzeugung dreidimensionaler bilder |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19843296.8 | 1998-09-22 | ||
DE19843296A DE19843296A1 (de) | 1998-09-22 | 1998-09-22 | Vorrichtung zur Erzeugung dreidimensionaler Bilder |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000018141A1 true WO2000018141A1 (de) | 2000-03-30 |
Family
ID=7881745
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1999/006611 WO2000018141A1 (de) | 1998-09-22 | 1999-09-08 | Vorrichtung zur erzeugung dreidimensionaler bilder |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1104628A1 (de) |
JP (1) | JP2002525990A (de) |
CN (1) | CN1319310A (de) |
AU (1) | AU5746499A (de) |
CA (1) | CA2344042A1 (de) |
DE (1) | DE19843296A1 (de) |
WO (1) | WO2000018141A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003010976A1 (en) * | 2001-07-23 | 2003-02-06 | Koninklijke Philips Electronics N.V. | Stereoscopic image processing apparatus and method |
DE102008006812A1 (de) * | 2008-01-31 | 2009-08-06 | Transmechatronics Gmbh | Vorrichtung und Verfahren zur Erzeugung einer räumlichen Darstellung |
KR101541893B1 (ko) | 2014-02-25 | 2015-08-06 | 포테닛 주식회사 | 디스플레이 장치 및 이의 구동 방법 |
CN105700159B (zh) * | 2014-11-29 | 2019-03-15 | 昆山工研院新型平板显示技术中心有限公司 | 3d柔性显示屏及其显示方法 |
CN105116559B (zh) * | 2015-09-29 | 2017-10-24 | 南安市腾龙专利应用服务有限公司 | 一种裸眼3d显示器及其工作方法 |
EP3425907B1 (de) * | 2017-07-03 | 2022-01-05 | Vestel Elektronik Sanayi ve Ticaret A.S. | Anzeigevorrichtung und -verfahren zur wiedergabe eines dreidimensionalen bildes |
CN110706611A (zh) * | 2019-10-28 | 2020-01-17 | 广州粤靓计算机有限责任公司 | 一种立体显示屏、立体显示屏显示方法及存储介质 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5793918A (en) * | 1997-03-03 | 1998-08-11 | Hogan; Richard J. | Movable 3d display |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0764020A (ja) * | 1993-06-15 | 1995-03-10 | Nikon Corp | 三次元ディスプレイおよびこれを用いた表示方法 |
-
1998
- 1998-09-22 DE DE19843296A patent/DE19843296A1/de not_active Ceased
-
1999
- 1999-09-08 WO PCT/EP1999/006611 patent/WO2000018141A1/de not_active Application Discontinuation
- 1999-09-08 CN CN99811237A patent/CN1319310A/zh active Pending
- 1999-09-08 AU AU57464/99A patent/AU5746499A/en not_active Abandoned
- 1999-09-08 JP JP2000571673A patent/JP2002525990A/ja active Pending
- 1999-09-08 CA CA002344042A patent/CA2344042A1/en not_active Abandoned
- 1999-09-08 EP EP99944625A patent/EP1104628A1/de not_active Ceased
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5793918A (en) * | 1997-03-03 | 1998-08-11 | Hogan; Richard J. | Movable 3d display |
Also Published As
Publication number | Publication date |
---|---|
CA2344042A1 (en) | 2000-03-30 |
DE19843296A1 (de) | 2000-04-13 |
EP1104628A1 (de) | 2001-06-06 |
AU5746499A (en) | 2000-04-10 |
CN1319310A (zh) | 2001-10-24 |
JP2002525990A (ja) | 2002-08-13 |
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