Experimental implementation of a Wiener filter in a hybrid digital--optical correlator.
We present the implementation of a clutter-tolerant filter in a hybrid correlator system. Wiener filters were mapped with a complex encoding technique onto a smectic A(*) liquid-crystal spatial light modulator (SLM). The technique 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.
Birch
P
P
Tan
S
S
Young
R
R
Koukoulas
T
T
Claret-Tournier
F
F
Budgett
D
D
Chatwin
C
C