The University of Edinburgh -
Division of Informatics
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Research Paper #655

Title:Rejection of Spurious Reflections in Structured Illumination Range Finders
Authors:Fisher,RB; Naidu,D; Singhal,D
Date: 1993
Presented:Presented at the 2nd Conference on Optical 3D Measurement Techniques, Zurich, Oct. 1993
Abstract:This paper describes techniques for two (or more) camera geometry structured illumination range finders that eliminates most spurious range values that arise from specular reflections from shiny (e.g. metallic) parts. The key observation is that specular reflections produce range values that depend on camera position. Hence, by using two cameras, several consistency tests can be applied that eliminate most spurious range data. This paper describes the constraints that underly the tests and shows sample performance.

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