INSPECTION OF METALLIC STAMPED PARTS USING AN IMAGE FUSION TECHNIQUE

This paper presents a machine vision system for on-line inspection of large stamped car parts. The vision system includes a CCD camera and an illumination device that permit to obtain two images of the same zone illuminated from two different directions. The acquired images are fused using an energy function in order to eliminate the spurious features originated by glints and shadows of the metallic surface. The defects, if they are present, remain in the fused image and can easily be pointed out.