B. Javidi et al., PERFORMANCE OF AN OPTIMUM RECEIVER DESIGNED FOR PATTERN-RECOGNITION WITH NONOVERLAPPING TARGET AND SCENE NOISE, Applied optics, 34(20), 1995, pp. 3858-3868
The design of an optimum receiver for pattern recognition is based on
multiple-alternative hypothesis testing with unknown parameters for de
tecting and locating a noisy target or a noise-free target in scene no
ise that is spatially nonoverlapping with this target. The optimum rec
eiver designed for a noise-free target has the interesting property of
detecting, without error, a noise-free target that has unknown illumi
nation by using operations that are independent of the scene-noise sta
tistics. We investigate the performance of the optimum receiver design
ed for nonoverlapping target and scene noise in terms of rotation and
scale sensitivity of the input targets and discrimination against simi
lar objects. Because it is not possible in practical systems to have a
completely noise-free target, we examine how the performance of the o
ptimum receiver designed for a noise-free target is affected when ther
e is some overlapping noise on the target. The application of the opti
mum receiver to binary character recognition is described. Computer si
mulation results are provided.