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Green Image
Issue No. 06 - November (1988 vol. 10)
ISSN: 0162-8828
pp: 803-810
<p>The first module is a parallel process computing local edge strength and direction, while the last module is sequential process following edges. The originality of the overall method resides in the intermediate module, which is seen as a generalization of the nonmaximum-deletion algorithm. The role of this module is twofold: It enables one to postpone some deletion to the last module where contextual information is available, and it transmits the local edge direction in order to guide the contour following. A postprocessing method called learning edges is proposed as a refinement of the method. The binary edge images extracted from various gray-level images illustrate the power of the strategy.</p>
computerized pattern recognition; computerized picture processing; three-module strategy; edge detection; parallel process; sequential process; nonmaximum-deletion algorithm; contextual information; contour following; learning edges; binary edge images; gray-level images; computerised pattern recognition; computerised picture processing; modules; parallel processing

V. Lacroix, "A Three-Module Strategy for Edge Detection," in IEEE Transactions on Pattern Analysis & Machine Intelligence, vol. 10, no. , pp. 803-810, 1988.
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