An edge detection system and method implement a recursive polar algorithm process to generate an edge image from an input image. The edge detection system may include a polar filter to recursively perform low-pass filtering along edge contours of a gradient pixel grid and generate a gradient image output....http://www.google.fr/patents/US7110602?utm_source=gb-gplus-shareBrevet US7110602 - System and method for detection of image edges using a polar algorithm process
System and method for detection of image edges using a polar algorithm process