Method of and apparatus for automatic detection of three-dimensional defects in moving surfaces by means of color vision systems

摘要

In a method of and an apparatus for detecting three-dimensional defects in the 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.