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Laser Electro-Optic System For Three-Dimensional (3D) Topographic Mensuration
Home
Publications
Laser Electro-Optic System For Three-Dimensional (3D) Topographic Mensuration
Laser Electro-Optic System For Three-Dimensional (3D) Topographic Mensuration
BA
Bruce R. Altschuler
Bruce R. Altschuler
MA
Martin D. Altschuler
Martin D. Altschuler
JT
J. Taboada
J. Taboada
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10 October 1979
proceedings article
Published by
SPIE-Intl Soc Optical Eng
Vol. 182
,
192-196
https://doi.org/10.1117/12.957388
Abstract
Applications and system hardware are described for a new comparative topographic spatial mapping device. The device will remotely, automatically, and non-destructively measure any specified surface. A unique optical method, generates a well-defined orthogonal array of individual laser beams. Variable adjustment of beam pattern spatial frequency permits either wide-angle coverage of large-sized objects or high resolution capability for detailed areas. A novel programmable electro-optic filtering system encodes the beam array. A synchronized electro-optic selective wavelength scene capture system decodes and stores scene data in real-time in ambient light. The hardware described interfaces with suitable algorithms for the rapid calculation of the three-dimensional coordinates of sample points which mathematically define the surface of an object. The derived spatial coordinates of surface sample points then form a data base for numerically-controlled fabrication machines. A completely automated real-time scene acquisition and analysis capability could lead to machine interactive systems for pattern recognition, casting or mold comparisons, vector analysis of dimensional changes, and servo-controlled robot vision applications. The device can be ruggedly configured for use in surgical operatories, hazardous industries, outdoor inspection, etc.© (1979) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Keywords
SPATIAL FREQUENCIES
PATTERN RECOGNITION
INTERFACES
ALGORITHMS
THREE DIMENSIONAL
LASERS
FABRICATION
INSPECTION
COMPUTER HARDWARE
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Cited by 2 articles