Apparatus and method for automatically inspecting objects and identifying or recognizing known and unknown portions thereof, including defects and the like, involving storing digital signal information representing an image of the desired predetermined object shapes to be learned by an image inspecting...http://www.google.ca/patents/US4893346?utm_source=gb-gplus-sharePatent US4893346 - Apparatus for automatically inspecting objects and identifying or recognizing known and unknown portions thereof, including defects and the like, and method