Abstract

A new space and time correlation filter is described. This filter achieves full in-plane distortion invariance (shift, scale, and rotation) as well as intensity invariance. The use of nonconstant temporal signatures for multiclass recognition is suggested. Initial discrimination results as well as the results demonstrating the ability to estimate the orientation of the input object are provided.

© 1986 Optical Society of America

Log-polar transform-based wavelet-modified maximum average correlation height filter for distortion invariance in a hybrid digital-optical correlator

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Distortion-invariant pattern recognition with Fourier-plane nonlinear filters

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Experimental use of iteratively designed rotation invariant correlation filters

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