Autostereoscopy
Autostereoscopy is a method of displaying three-dimensional images that can be viewed without the use of special headgear or glasses on the part of the user. These methods produce depth perception in the viewer even though the image is produced by a flat device.
Several technologies exist for autostereoscopic 3D displays. Currently most of such flat-panel solutions are using lenticular lenses or parallax barrier. If the viewer positions their head in certain viewing positions, they will perceive a different image with each eye, giving a stereo image. Consequently, eye strain and headaches are usual side effects of long viewing exposure to autostereoscopic displays that use lenticular lens or parallax barriers. Such displays can have multiple viewing zones allowing multiple users to view the image at the same time.
Other displays use eye tracking systems to automatically adjust the two displayed images to follow the viewer's eyes as they move their head.
A wide range of organizations have developed autostereoscopic 3D displays, ranging from experimental displays in university departments to commercially available displays. Examples include: Alioscopy [1], Apple, 3Dicon [2], Dimension Technologies [3], Fraunhofer HHI [4], Holografika [5], i-Art [6], NewSight [7], DDD [8], Philips[9] (see WOW VX), SeeFront [10], SeeReal Technologies, Spatial View [11], Tridelity [12], VisuMotion [13] and Zero Creative (xyZ) [14]. Sharp also claims to have the technology, although not for commercial sale at the moment.[15] Philips has released the first 3D HDTV, with a 2160p resolution of 3840×2160 pixels and 46 viewing angles.[16] Similarly, Hitachi has released the first 3D mobile phone for the Japanese market under the distribution by KDDI[17]. Zero Creative claims to have the first high quality 2D/3D switchable display [18] based on lenticular technology.
See also
- Stereogram, creating 3D perception on printed paper or ordinary monitors
- Autostereogram
Notes and references
- ^ http://www.alioscopy.com/
- ^ http://www.3dicon.net/
- ^ http://www.dti3d.com/
- ^ http://www.hhi.fraunhofer.de/
- ^ http://www.holografika.com/
- ^ http://www.iart3d.com/
- ^ http://www.newsight.com/
- ^ http://www.ddd.com/
- ^ "Why 3D?". Philips.com. http://www.business-sites.philips.com/3dsolutions/Why3D/Index.html. Retrieved on 2008-06-19.
- ^ http://www.seefront.com/
- ^ http://www.spatialview.com/
- ^ http://www.tridelity.de/
- ^ http://www.visumotion.com/
- ^ http://en.zerocreative.com/xyz
- ^ "2D/3D Switchable Displays" (pdf). Sharp white paper. http://sharp-world.com/corporate/info/rd/tj4/pdf/4.pdf. Retrieved on 2008-06-19.
- ^ http://blog.wired.com/gadgets/2008/10/philips-3d-hdtv.html
- ^ http://www.au.kddi.com/seihin/ichiran/kishu/h001/
- ^ http://www.xyz3d.tv
- Dodgson, N.A. (August 2005). "Autostereoscopic 3D Displays". IEEE Computer 38 (8): 31–36. doi:10.1109/MC.2005.252. ISSN 0018-9162.
External links
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Wikimedia Commons has media related to: Stereoscopy |
- Explanation of 3D Autostereoscopic Monitors
- Overview of different Autostereoscopic LCD displays
- Rendering for an Interactive 360º Light Field Display, a demonstration of Autostereoscopy using a spinning mirror, a holographic diffuser, and a high speed video projector demonstrated at SIGGRAPH 2007
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