Model for analyzing visual images of non-lambertian objects observed through a light-scattering medium

Vladimir V. Barun

doi:10.1117/12.2298939

1 September 1996 Model for analyzing visual images of non-lambertian objects observed through a light-scattering medium

Vladimir V. Barun

Proceedings Volume 2778, 17th Congress of the International Commission for Optics: Optics for Science and New Technology; 27781L (1996) https://doi.org/10.1117/12.2298939
Event: 17th Congress of the International Commission for Optics: Optics for Science and New Technology, 1996, Taejon, Korea, Republic of

Abstract

This paper presents an approach to treat the imag- ing of objects with arbitrary reflection diagrams. We consider here the observation of retroreflective objects through a light scattering medium. Their images formed by an active vision system show a number of surprises. First, a retroreflector may be perceived as several different objects. Its image, under uniform illumination and invariable reflec- tive characteristics, can be highly-nonuniform in brightness, etc. Second, a retroreflector with very low albedo viewed against an ideally-white back- ground may be seen as a clearer object than the background. These features should be accounted for when analyzing the imaging of objects with reflection patterns differing greatly from that of Lambertian ones.

Citation Download Citation

Vladimir V. Barun "Model for analyzing visual images of non-lambertian objects observed through a light-scattering medium", Proc. SPIE 2778, 17th Congress of the International Commission for Optics: Optics for Science and New Technology, 27781L (1 September 1996); https://doi.org/10.1117/12.2298939

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