10 October 1979 Laser Electro-Optic System For Three-Dimensional (3D) Topographic Mensuration
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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 Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Bruce R. Altschuler, Bruce R. Altschuler, Martin D. Altschuler, Martin D. Altschuler, J. Taboada, J. Taboada, } "Laser Electro-Optic System For Three-Dimensional (3D) Topographic Mensuration", Proc. SPIE 0182, Imaging Applications for Automated Industrial Inspection and Assembly, (10 October 1979); doi: 10.1117/12.957388; https://doi.org/10.1117/12.957388
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