Experimental implementation of a Wiener filter in a hybrid digital-opticalcorrelator

Authors
Birch, P Tan, S Young, R Koukoulas, T Claret-Tournier, F Budgett, D Chatwin, C
Citation
P. Birch et al., Experimental implementation of a Wiener filter in a hybrid digital-opticalcorrelator, OPTICS LETT, 26(8), 2001, pp. 494-496
Citations number
7
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
OPTICS LETTERS
ISSN journal
01469592 → ACNP
Volume
26
Issue
8
Year of publication
2001
Pages
494 - 496
Database
ISI
SICI code
0146-9592(20010415)26:8<494:EIOAWF>2.0.ZU;2-P
Abstract
We present the implementation of a clutter-tolerant filter in a hybrid corr elator system. Wiener filters were mapped with a complex encoding technique onto a smectic A* liquid-crystal spatial light modulator (SLM). The techni que overcomes the problem of representing high-dynamic-range data on SLM's that have Limited modulation capabilities. It also provides a compact image recognition system that is robust enough for many real-world applications. Experimental results are presented. (C) 2001 Optical Society of America.