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Proceedings Paper

Inferring 3D scene structure from a single polarization image
Author(s): Stefan Rahmann
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Paper Abstract

This paper presents a method for deducing both, the 3D orientation of a flat, rough surface and the 3D position of the light source by analyzing the specular reflection produced by the light source on the surface. This is achieved by polarization analysis of the reflected light from a single point of view. This new approach is applicable to all materials and to all isotropic surface structures excluding mirror like and ideal Lambertian surfaces; therefore, it can be applied in most cases of practical interest. First the paper shows that important 3D information of the position of the light source can be inferred by polarization analysis. Second we present a new method for the calculation of surface orientation which can be deduced from the intensity image of a reflected point light source. Furthermore the paper shows the benefit to be derived from the combination of the two former results. In the resulting algorithm the complete 3D information of the light source and the reflecting surface can be inferred. The applicability under different lighting conditions is demonstrated. In contrast to previous results our method does not need any calibration of the experimental setup.

Paper Details

Date Published: 16 September 1999
PDF: 12 pages
Proc. SPIE 3826, Polarization and Color Techniques in Industrial Inspection, (16 September 1999); doi: 10.1117/12.364333
Show Author Affiliations
Stefan Rahmann, Albert-Ludwigs-Univ. of Freiburg (Germany)

Published in SPIE Proceedings Vol. 3826:
Polarization and Color Techniques in Industrial Inspection
Elzbieta A. Marszalec; Emanuele Trucco, Editor(s)

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