Measuring Surfaces Space-Coded By A Laser-Projected Dot Matrix
- 10 October 1979
- proceedings article
- Published by SPIE-Intl Soc Optical Eng
- Vol. 0182, 187-191
- https://doi.org/10.1117/12.957387
Abstract
We describe a mathematically-rigorous easy-to-use portable topographical mapping technique that within seconds or less can determine the heights of a surface at 16,000 (128x128) distinct sample points. The necessary data derive from (narrow-optical-bandpass) TV images of a surface which has been illuminated and space-coded by a rapid sequence of laser-projected dot patterns.Keywords
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