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Proceedings Paper

New techniques for wave-field rendering of polygon-based high-definition CGHs
Author(s): Hirohito Nishi; Kentaro Higashi; Yasuaki Arima; Kyoji Matsushima; Sumio Nakahara
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Paper Abstract

Four novel techniques are introduced into polygon-based high-definition CGHs (PBHD-CGH) that feature the true-fine spatial 3D image accompanied with a strong sensation of depth. The first is algorithm for creating specular surfaces based on Phong reflection model. This is very useful for providing a feel of material to polygonal surfaces. The second technique is called digitized holography that replaces the entire processes of classical holography by their digital counterparts. The wave-field of real-existent objects can be optically reconstructed by the digitized holography. This technique makes it possible to edit the 3D scene of holograms or create mixed 3D scene of the real and virtual objects. Another technique for creating PBHD-CGH of real-existent objects is also proposed by a CG-like method using a 3D laser scanner that measures the 3D shape of the object. Finally, a prototype PBHD-CGH is demonstrated for creating landscape scenery. This CGH is intended to reconstruct a scene as if the viewers see mountain scenery through the window given by the CGH.

Paper Details

Date Published: 7 February 2011
PDF: 11 pages
Proc. SPIE 7957, Practical Holography XXV: Materials and Applications, 79571A (7 February 2011); doi: 10.1117/12.876362
Show Author Affiliations
Hirohito Nishi, Kansai Univ. (Japan)
Kentaro Higashi, Kansai Univ. (Japan)
Yasuaki Arima, Kansai Univ. (Japan)
Kyoji Matsushima, Kansai Univ. (Japan)
Sumio Nakahara, Kansai Univ. (Japan)

Published in SPIE Proceedings Vol. 7957:
Practical Holography XXV: Materials and Applications
Hans I. Bjelkhagen, Editor(s)

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