Optics: measuring and testing – Range or remote distance finding – Triangulation ranging with photodetection – but with no...
Patent
1995-05-04
1997-05-27
Buczinski, Stephen C.
Optics: measuring and testing
Range or remote distance finding
Triangulation ranging with photodetection, but with no...
348139, 356 501, 180167, 180169, H04N 718, G01C 300, G01C 308, B60T 716
Patent
active
056337051
ABSTRACT:
An obstacle detecting system for a motor vehicle which is capable of detecting not only the distance to an obstacle(s) existing in front of the motor vehicle and the width thereof, but also its height to thereby allow a motor vehicle control to be effected more appropriately with high reliability. The distance to the object and its width are detected by a laser radar type distance detecting unit, while the distance to the object lying within a window preset by a window setting device is also detected by a distance detecting circuit of a stereoscopic video camera unit. An object size determining unit is provided for selecting a window corresponding to a distance value detected by the stereoscopic video camera unit and which coincides with a distance value calculated by the laser radar type distance detecting unit, to thereby determine the size of the object on the basis of the preset position of the selected window.
REFERENCES:
patent: 4333106 (1982-06-01), Lowe
patent: 4477184 (1984-10-01), Endo
patent: 4632543 (1986-12-01), Endo
patent: 5187537 (1993-02-01), Asayama
patent: 5214408 (1993-05-01), Asayama
Buczinski Stephen C.
Mitsubishi Denki & Kabushiki Kaisha
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