A method for controlling an image processing device wherein the contour of a certain segment of an image, or pattern is polygonal-approximated so that it is represented by a row of vertex data and the row of vertex data is processed to recognize the shape of the segment. This method comprises the steps...http://www.google.ca/patents/US4748675?utm_source=gb-gplus-sharePatent US4748675 - Method for controlling image processing device
