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.
P
P
Birch
S
S
Tan
R
R
Young
T
T
Koukoulas
F
F
Claret-Tournier
D
D
Budgett
C
C
Chatwin