Fast holographic-like stereogram display using shell rendering and a holographic screen
| Autor: | Candido F. X. de Mendonça, José J. Lunazzi, Cesar Augusto De Carvalho Vannini, Alexandre X. Falcão |
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| Rok vydání: | 1999 |
| Předmět: |
Computer science
business.industry Parallax barrier ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Holography Stereoscopy Stereo display GeneralLiterature_MISCELLANEOUS law.invention Rendering (computer graphics) Holographic screen law Computer graphics (images) Autostereoscopy Holographic display Computer vision Artificial intelligence business ComputingMethodologies_COMPUTERGRAPHICS |
| Zdroj: | Medical Imaging 1999: Image Display. |
| ISSN: | 0277-786X |
| DOI: | 10.1117/12.349460 |
| Popis: | Display systems relying on computer graphics techniques usually create 2.5D image display on a 2D screen. To obtain 3D image display, most systems uses auxiliary devices or viewing tricks, such as polarized glasses, virtual reality helmet, detection of observer's location, divergent viewing, etc. We call these systems stereoscopic. A system that can display 3D images in a natural way (i.e. without auxiliary devices or viewing tricks) is called a self-stereoscopicsystem. We know that stereoscopic systems do not have horizontal parallax such as seen in holograms, which display continuum parallax. In this paper, we introduce a new technique based on shell rendering to discretize horizontal parallax by coding several views of the object forming a holographic-like stereogram and a new self-stereoscopic 3Ddisplay system to visualize holographic stereograms on a holographic screen (i.e. a transparent film with grating and focusing optical properties). We also demonstrate the new system using medical image data.Keywords: holoprojection, dynamic holography, horizontal parallax, 3D visualization, shell rendering, holographic |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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