Optics For Machine Vision

T C Strand

doi:10.1117/12.939378

27 November 1984 Optics For Machine Vision

T C Strand

Proceedings Volume 0456, Optical Computing; (1984) https://doi.org/10.1117/12.939378
Event: 1984 Los Angeles Technical Symposium, 1984, Los Angeles, United States

Abstract

Vision systems are becoming increasingly important sources of information for automated inspection and assembly tasks. Spatial information along directions transverse to the viewing axis is easily obtainable with imaging systems and one-or two-dimensional detectors. A challenge for optics is to develop fast, accurate range sensors. This paper reviews range sensing techniques. Four basic categories of range sensing techniques are discussed: geometric techniques, time-of-flight techniques, interferometric techniques and diffraction techniques. The basic principles are elucidated and general comparisons are made between the groups. Representative examples are given of many different approaches.

Citation Download Citation

T C Strand "Optics For Machine Vision", Proc. SPIE 0456, Optical Computing, (27 November 1984); https://doi.org/10.1117/12.939378

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