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The Taub Faculty of Computer Science Events and Talks

Pixel Club: Pattern Matching under Non Linear Tone-Mapping
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Yacov Hel-Or (CS, The Interdisciplinary Center)
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Tuesday, 05.04.2011, 11:30
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Room 337-8 Taub Bld.
A fast pattern matching scheme termed Matching by Tone Mapping (MTM) is introduced which allows matching under non-linear tone mappings. We exploit the recently introduced Slice Transform to implement a fast computational scheme requiring computational time similar to the fast implementation of Normalized Cross Correlation (NCC). In fact, the MTM measure can be viewed as a generalization of the NCC for non-linear mappings and actually reduces to NCC when mappings are restricted to be linear. The MTM is shown to be invariant to non-linear tone mappings, and is empirically shown to be highly discriminative and robust to noise.