Optics: measuring and testing – Range or remote distance finding – With photodetection
Patent
1985-11-12
1987-08-18
Buczinski, Stephen C.
Optics: measuring and testing
Range or remote distance finding
With photodetection
356 2, 356152, 358125, G01C 308, G01C 1108
Patent
active
046873260
ABSTRACT:
A three-dimensional range camera, which produces a range map of the distances from a reference to each of M.times.N points in a scene, is modified to generate registered luminance and range images. The same sensor detects range and luminance variations. A planar pattern projector generates sequential presentations of time/space coded light rays which are projected onto the object. A linear array camera images the points of light on the object surface, and a processor analyzes one-dimensional scan signals to determine range. To detect luminance there is an additional presentation, either constant illumination or no artificial illumination, and the other scan signal yields luminance along the same strip of the scene.
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M. D. Altschuler et al, "Laser Electro-Optic System for Rapid Three-Dimensional (3-D) Topographic Mapping of Surfaces", Optical Engineering, vol. 20, No. 6, Nov./Dec. 1981, pp. 953-961.
Buczinski Stephen C.
Campbell Donald R.
Davis Jr. James C.
General Electric Company
Wallace Linda J.
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