Method of and apparatus for automatic detection of three-dimensi

Details Method of and apparatus for automatic detection of three-dimensi Method of and apparatus for automatic detection of three-dimensi

1997-09-29

2000-05-16

Kim, Robert H.

Optics: measuring and testing

Inspection of flaws or impurities

3562372, 3562381, G01N 2100

Patent

active

060644788

ABSTRACT:
In a method of and an apparatus for detecting three-dimensional defects in he automatic inspection of moving surfaces by means of a color vision system the surface of a moving test specimen which is to be inspected is illuminated with light of different colors simultaneously from at least two different directions, such that edges of three-dimensional defects on the surface appear with a different coloring, and on the basis of the altered coloring, at least two channels of the color image are evaluated to detect three-dimensional defects and to differentiate same from planar defects.

REFERENCES:
patent: 5245671 (1993-09-01), Kobayashi
patent: 5298963 (1994-03-01), Moriya et al.
patent: 5315384 (1994-05-01), Heffington et al.

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