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Proceedings Paper

Mutual conversion between 3D images and light rays
Author(s): Keisuke Takeuchi; Takeshi Naemura; Hiroshi Harashima
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Paper Abstract

In the field of 3-D image, several kinds of input/output methods are developed and still making rapid progress. Considering such situation, it is desirable that the format of 3-D data is independent on input/output methods. For this purpose, ray-based representation has been proposed. In this method, 3-D physical space is represented by rays which propagate in the space. If whole light rays are completely described, 3-D space can be reproduced correctly from light ray data. However, we can only obtain sample data of light rays, e.g. multiview images. Moreover, the parameters which represent the position and direction of light rays are also sampled. If the sampling of ray parameters is not proper, it is probable that original image are not reproduced correctly from the light rays. In this paper, we discuss the effects of the sampling in mutual conversion between multiview images and light rays. Furthermore, we present sampling methods to reproduce original images correctly for several camera arrangements.

Paper Details

Date Published: 28 December 1998
PDF: 12 pages
Proc. SPIE 3653, Visual Communications and Image Processing '99, (28 December 1998); doi: 10.1117/12.334643
Show Author Affiliations
Keisuke Takeuchi, Univ. of Tokyo (Japan)
Takeshi Naemura, Univ. of Tokyo (United States)
Hiroshi Harashima, Univ. of Tokyo (Japan)

Published in SPIE Proceedings Vol. 3653:
Visual Communications and Image Processing '99
Kiyoharu Aizawa; Robert L. Stevenson; Ya-Qin Zhang, Editor(s)

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