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1 April 1991 Pattern recognition with incoherent light and rotation invariance
Eran Elizur, Asher A. Friesem
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Proceedings Volume 1442, 7th Mtg in Israel on Optical Engineering; (1991) https://doi.org/10.1117/12.49040
Event: 7th Meeting of Optical Engineering in Israel, 1990, Tel-Aviv, Israel
Abstract
An algorithm based on circular harmonic expansion has been incorporated into a pattern recognition system using spatially incoherent light. In this algorithm the model used for recording the necessary recognition filter is derived from the absolute value of one of the circular harmonic components of the desired pattern so that both rotation and shift invariances are obtained. Computer simulations reveal that the algorithm can indeed provide adequate peak to background ratios regardless of the input rotation and lateral shift. The details of the algorithm along with results of computer simulations are presented.
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Eran Elizur and Asher A. Friesem "Pattern recognition with incoherent light and rotation invariance", Proc. SPIE 1442, 7th Mtg in Israel on Optical Engineering, (1 April 1991); https://doi.org/10.1117/12.49040
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KEYWORDS
Detection and tracking algorithms
Computer simulations
Pattern recognition
Optical engineering
CRTs
Algorithm development
Convolution
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