Snakes: Active contour models |
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Authors: | Kass Michael Witkin Andrew Terzopoulos Demetri |
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Affiliation: | (1) Schlumberger Palo Alto Research, 3340 Hillview Ave., 94304 Palo Alto, CA |
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Abstract: | A snake is an energy-minimizing spline guided by external constraint forces and influenced by image forces that pull it toward features such as lines and edges. Snakes are active contour models: they lock onto nearby edges, localizing them accurately. Scale-space continuation can be used to enlarge the capture region surrounding a feature. Snakes provide a unified account of a number of visual problems, including detection of edges, lines, and subjective contours; motion tracking; and stereo matching. We have used snakes successfully for interactive interpretation, in which user-imposed constraint forces guide the snake near features of interest. |
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