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Proceedings Paper

Model for reflectance perception in vision
Author(s): Vladimir Brajovic
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Paper Abstract

Human vision routinely compensates for illumination field and is mostly sensitive to scene reflectance. This paper presents a biologically inspired mathematical model that estimates the illumination field of a scene and compensates for it to produce the output image that is mostly modulated by the scene reflectance. Since the illumination field is responsible for wide dynamic range variations in scenes, the present model is seen as an approach to handling wide dynamic range scenes. The model can be conveniently implemented in an analog silicon retina incorporating modified cellular neural network for the computation of the illumination field. We present several numerically obtained results on scenes with widely varying illumination conditions.

Paper Details

Date Published: 18 April 2003
PDF: 9 pages
Proc. SPIE 5119, Bioengineered and Bioinspired Systems, (18 April 2003); doi: 10.1117/12.499038
Show Author Affiliations
Vladimir Brajovic, Carnegie Mellon Univ. (United States)

Published in SPIE Proceedings Vol. 5119:
Bioengineered and Bioinspired Systems
Angel Rodriguez-Vazquez; Derek Abbott; Ricardo Carmona, Editor(s)

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