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Finding Picture Edges Through Collinearity of Feature Points
April 1976 (vol. 25 no. 4)
pp. 449-456
F. O'Gorman, Laboratory of Experimental Psychology, University of Sussex
The recovery of straight picture edges from digitizations of scenes containing polyhedra ("line finding") is central to the functioning of scene analysis programs. While recognizing that recovery properly involves a computational mobilization of a great deal of knowledge-supported context, there remain some basic issues of representation which govern the way in which the primary data?grey levels?are addressed. The paper describes a parametric representation of straight picture edges and its procedural deployment in the recovery of edges from digitizations of scenes whose contents are essentially polyhedra with strong visible shadows.
Index Terms:
Edge finding, machine vision, scene analysis.
F. O'Gorman, M.B. Clowes, "Finding Picture Edges Through Collinearity of Feature Points," IEEE Transactions on Computers, vol. 25, no. 4, pp. 449-456, April 1976, doi:10.1109/TC.1976.1674627
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