Distance detection system for vehicles

Details Distance detection system for vehicles Distance detection system for vehicles

1992-10-14

1994-04-26

Buczinski, Stephen C.

Optics: measuring and testing

Range or remote distance finding

With photodetection

180167, 2502016, 348140, G01C 300, B60T 716

Patent

active

053071360

ABSTRACT:
An automobile distance detection system includes an image camera system which photographs an object which exists in a required range external to an automobile, from a plurality of different directions and obtains a plurality of pictures, and a picture processing unit which processes the plural number of pictures photographed by the camera system and outputs a distance distribution for an entire picture. The image processing unit includes a coincidence calculation element which performs high-speed calculation of a degree of coincidence for each required region, and corresponding to the plural number of pictures photographed by the camera system, and a discrepancy amount determination element determines discrepancy amounts corresponding to the plural number of pictures on the basis of a minimum value for the coincidence, as information relating to the distance distribution.

REFERENCES:
patent: Re32886 (1989-03-01), Stauffer
patent: 3684374 (1972-08-01), Humphrey
patent: 4206365 (1980-06-01), Leitz
patent: 4257705 (1981-03-01), Hosoe et al.
patent: 5068738 (1991-11-01), Miida
patent: 5146228 (1992-09-01), Irani et al.
patent: 5161886 (1992-11-01), De Jong et al.

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