Share Email Print
cover

Proceedings Paper

Computer-generated holograms considering background reflection on various object shapes with reflectance distributions
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Computer-generated hologram (CGH) is a one of 3-D display technologies, and it reconstructs natural and virtual objects. However, improvement of the reality of reconstructed images is necessary for reconstructing complex and clear scenes like computer graphics. We have studied about the rendering techniques for CGH, and proposed the method considering background reflections and reflectance distributions. The background reflections and reflectance distributions are the characteristics of reflection. Metallic objects and reflected scenes were reconstructed by considering these. In this paper, we improved the previous works for express complex scenes. The proposed method considered the background reflections and reflectance distributions on the curved surface such as convex and concave mirrors. By using the phase transformation, the background reflections and reflectance distributions on it with some roughness are generated. We performed that the background reflections and reflectance distributions on the convex and concave mirrors with roughness are actually obtained through computational and optical reconstructions.

Paper Details

Date Published: 10 February 2010
PDF: 11 pages
Proc. SPIE 7619, Practical Holography XXIV: Materials and Applications, 761909 (10 February 2010); doi: 10.1117/12.841779
Show Author Affiliations
Kazuhiro Yamaguchi, Hokkaido Univ. (Japan)
Yuji Sakamoto, Hokkaido Univ. (Japan)


Published in SPIE Proceedings Vol. 7619:
Practical Holography XXIV: Materials and Applications
Hans I. Bjelkhagen; Raymond K. Kostuk, Editor(s)

© SPIE. Terms of Use
Back to Top