Optical wavelet matched filters for shift-invariant pattern recognition
- 15 February 1993
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 18 (4) , 299-301
- https://doi.org/10.1364/ol.18.000299
Abstract
We introduce optical wavelet matched filters that perform the wavelet transforms for edge enhancement and perform correlations between the wavelet coefficients for shift-invariant pattern recognition. These new bandpass matched filters show improved discrimination capability with respect to the conventional matched spatial filter and improved signal-to-noise ratio with respect to the phase-only matched filter.Keywords
This publication has 10 references indexed in Scilit:
- Wavelet transform as a bank of the matched filtersApplied Optics, 1992
- Singularity detection and processing with waveletsIEEE Transactions on Information Theory, 1992
- Optical realization of wavelet transform for a one-dimensional signalOptics Letters, 1992
- New wavelet transform normalization to remove frequency biasOptical Engineering, 1992
- Optical wavelet transformOptical Engineering, 1992
- Optical wavelet transform of fractal aggregatesPhysical Review Letters, 1990
- Multifrequency channel decompositions of images and wavelet modelsIEEE Transactions on Acoustics, Speech, and Signal Processing, 1989
- ANALYSIS OF SOUND PATTERNS THROUGH WAVELET TRANSFORMSInternational Journal of Pattern Recognition and Artificial Intelligence, 1987
- Phase-only matched filteringApplied Optics, 1984
- Computer Generated Spatial Filters for Coherent Optical Data ProcessingApplied Optics, 1968