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Invariant signatures for planar shape recognition under partial occlusion
Bruckstein, A.M.; Holt, R.J.; Netravali, A.N.; Richardson, T.J.;
Pattern Recognition, 1992. Vol.I. Conference A: Computer Vision and Applications, Proceedings., 11th IAPR International Conference on
30 Aug.-3 Sept. 1992
Page(s):108
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112
Abstract:
A planar shape distorted by a projective viewing transformation can be recognized under partial occlusion if an invariant description of its boundary is available. Research in this area has provided a theory for invariant boundary descriptions based on an interplay of differential, local, and global invariants. Differential invariants require high-order derivatives. The use of global invariants and point matches on the distorting transformations enables one to reduce the order. Trade-offs between the highest order derivatives required and the quantity of additional information constraining the distorting viewing transformations are made explicit
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