The invention relates to a method for automatic inspection of the surface 20 of a moving object, in which a region on the object's surface is illuminated from at least two different illumination directions 13-15. The object's illuminated surface region is imaged with a camera to provide image information...http://www.google.ca/patents/US6327374?utm_source=gb-gplus-sharePatent US6327374 - Arrangement and method for inspection of surface quality
