Fast Boundary Detection: A Generalization and a New Algorithm

Authors:
W. Frei; Chung-Ching Chen
Affiliations:
Department of Radiology, Medical Imaging Science Group, University of Southern California;-
Venue:
IEEE Transactions on Computers
Year:
1977

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Abstract

We study class of fast algorithms that extract object boundaries from digitized images. A set of orthogonal functions related to distinctive image features is presented, which allows efficient extraction of such boundary elements. The properties of these functions are. used to define new criteria for edge detection and a sequential algorithm is presented. Results indicate considerable improvements over, existing techniques, with a very moderate increase of computational cost.