title: Two new edge detectors.
abstract: This paper introduces two new edge detection algorithms. One uses multiple difference-based edge detectors. This scheme selects peak center by absolute maximum or center of mass techniques. The other algorithm is motivated by the observation that second-order enhancement improves human contour extraction, but generally confuses difference-based edge detectors. This algorithm translates intensity images into three state images (plus one, zero, and minus one), then uses multiple three-state edge masks to find edge positions. The second scheme has a multiple hardware implementation and interesting biological analogs. Finally, the two operators introduced are compared to some popular edge detection techniques from the literature.
authors.affiliation: Coordinated Science Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801; Texas Instruments, Inc., Dallas, TX 75265.
authors.forename: C J
authors.initials: CJ
authors.lastname: Jacobus
authors.forename: R T
authors.initials: RT
authors.lastname: Chien