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Proceedings Paper

Range image segmentation using pseudoreflectance images
Author(s): Ho-Keun Song; Kug-Chan Cha; Jong Soo Choi
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Paper Abstract

In this paper, a range image segmentation method using Pseudo Reflectance Images (PRIs) is proposed. The PRI is generated of the range image by assuming a light source position and applying a shading algorithm. It is assumed that surfaces within a PRI correspond to physical surfaces in a scene. Planar surface points within the PRI can be readily extracted from the condition of homogeneous reflectance value in addition to the invariant characteristic of reflectance gradient. The extraction of quadratic surface points within the PRI is associated with the fact that is has a direct relationship between elliptical, hyperbolic and parabolic points and rotational change of the image reflectance gradient produced from varying light source position. Moreover, the major part of edges in range image are formed by jumps in reflectance values within the PRI, and these types of edges can be detected by common edge operator.

Paper Details

Date Published: 21 April 1995
PDF: 9 pages
Proc. SPIE 2501, Visual Communications and Image Processing '95, (21 April 1995); doi: 10.1117/12.206700
Show Author Affiliations
Ho-Keun Song, Chung-Ang Univ. (South Korea)
Kug-Chan Cha, Keon-Yang Univ. (South Korea)
Jong Soo Choi, Chung-Ang Univ. and Engineering Research Ctr. for Advanced Control and Instrumentation (South Korea)

Published in SPIE Proceedings Vol. 2501:
Visual Communications and Image Processing '95
Lance T. Wu, Editor(s)

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