A difference technique for automatic inspection of casting parts

Authors:
H Decker
Affiliations:
Philips GmbH, Forschungslaboratorium Hamburg, Vogt-Köln-Str. 30, 2000 Hamburg 54, FRG
Venue:
Pattern Recognition Letters
Year:
1983

Citing 2
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Abstract

An image-processing procedure is given for automatic inspection of aluminium casting parts. Unwelcomed effects appear for measurement instabilities of the image sensor and for geometric tolerances of the casting parts. To overcome these effects the algorithm comprises a special high-pass filtering procedure and flexible matching.