Rejection of spurious reflections in structured illumination range finders

Robert B. Fisher; D. K. Naidu; D. Singhal

doi:10.1117/12.169873

1 March 1994 Rejection of spurious reflections in structured illumination range finders

Robert B. Fisher, D. K. Naidu, D. Singhal

Proceedings Volume 2252, Optical 3D Measurement Techniques II: Applications in Inspection, Quality Control, and Robotics; (1994) https://doi.org/10.1117/12.169873
Event: Optical 3D Measurement Techniques II: Applications in Inspection, Quality Control, and Robotics, 1993, Zurich, Switzerland

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 underlie the tests and shows sample performance.

Citation Download Citation

Robert B. Fisher, D. K. Naidu, and D. Singhal "Rejection of spurious reflections in structured illumination range finders", Proc. SPIE 2252, Optical 3D Measurement Techniques II: Applications in Inspection, Quality Control, and Robotics, (1 March 1994); https://doi.org/10.1117/12.169873

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