Model for reflectance perception in vision

Vladimir Brajovic

doi:10.1117/12.499038

18 April 2003 Model for reflectance perception in vision

Vladimir Brajovic

Proceedings Volume 5119, Bioengineered and Bioinspired Systems; (2003) https://doi.org/10.1117/12.499038
Event: Microtechnologies for the New Millennium 2003, 2003, Maspalomas, Gran Canaria, Canary Islands, Spain

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.

Citation Download Citation

Vladimir Brajovic "Model for reflectance perception in vision", Proc. SPIE 5119, Bioengineered and Bioinspired Systems, (18 April 2003); https://doi.org/10.1117/12.499038

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