NOISE ROBUSTNESS OF TUNABLE PHOTOREFRACTIVE FILTERS

Authors
WANG RK CHATWIN CR HUANG MY
Citation
Rk. Wang et al., NOISE ROBUSTNESS OF TUNABLE PHOTOREFRACTIVE FILTERS, Optics and lasers in engineering, 21(5), 1994, pp. 297-306
Citations number
11
Categorie Soggetti
Optics
Journal title
Optics and lasers in engineering → ACNP
ISSN journal
01438166
Volume
21
Issue
5
Year of publication
1994
Pages
297 - 306
Database
ISI
SICI code
0143-8166(1994)21:5<297:NROTPF>2.0.ZU;2-P
Abstract
Noise robustness of tuneable photo-refractive (TPR) filters, which can be implemented for real time pattern recognition, is assessed and com pared with phase-only and classical matched spatial filters. The bandp ass selectivity of the TPR filters results in sharp correlation peaks even when the input scene signal-to-noise ratio is decreased significa ntly.