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Optical Engineering

Three-dimensional surface segmentation using multicolored illumination
Author(s): Glenn Healey; Lizhi Wang
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Paper Abstract

We introduce a method for segmenting surfaces of threedimensional objects using two images of the object obtained from the same viewpoint under different illumination conditions. The method allows the surface spectral reflectance to vary from point to point and requires only weak conditions on the uncalibrated illumination configuration. The algorithm is based on the local recovery of an illumination change matrix that depends on surface geometry but not on the spectral reflectance of the surface. We show that for typical sensor noise levels, this technique can be used for the reliable detection of surface orientation changes of a few degrees. This approach can be generalized using a calibrated setup to recover a dense set of surface orientation estimates from two images. We present a set of experiments demonstrating the capability of the algorithm for the segmentation of planar surfaces in the presence of spatially varying spectral reflectance.

Paper Details

Date Published: 1 May 1998
PDF: 10 pages
Opt. Eng. 37(5) doi: 10.1117/1.601669
Published in: Optical Engineering Volume 37, Issue 5
Show Author Affiliations
Glenn Healey, Univ. of California/Irvine (United States)
Lizhi Wang, Sony U.S. (United States)

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