Apparatus and method for recognizing three-dimensional shape of

Details Apparatus and method for recognizing three-dimensional shape of Apparatus and method for recognizing three-dimensional shape of

1989-09-01

1991-01-01

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

382 22, 250558, 356 2, 364518, G06K 946

Patent

active

049824384

ABSTRACT:
A three-dimensional shape of an object is recognized by developing enveloping surfaces of the object by a cone-silhouetting method, wherein the object is picked up by a binocular three-dimensional vision method by making use of geometrical restraint conditions derived by the cone-silhouetting method. The binocular parallax is increased to thereby ensure the recognition of the three-dimensional shape with improved accuracy. Local concave portions which can not be recognized by the cone-silhouetting method by itself are recognized with higher accuracy.

REFERENCES:
patent: 4175862 (1979-11-01), Di Matteo
patent: 4335962 (1982-06-01), Di Matteo
patent: 4654872 (1987-03-01), Hisano et al.
patent: 4684990 (1987-08-01), Oxley
patent: 4685070 (1987-08-01), Flinchbaugh
patent: 4719585 (1988-01-01), Cline et al.

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