title: Optical hit-miss morphological transform.
abstract: We present an optical correlator implementation of the morphological hit-miss transform. This provides improved recognition of objects in clutter compared with standard optical pattern-recognition correlator techniques. The hit-miss transform is modified to use rank-order filtering since this gives better performance in noise and clutter. By varying the correlation plane threshold, we can perform dilations, rank-order filters, and erosions on the same multifunctional coherent optical correlator system. We quantify the thresholds required for generic object part recognition and provide simulated and optical laboratory data.
authors: D
authors: D
authors: Casasent
authors: R
authors: R
authors: Schaefer
authors: R
authors: R
authors: Sturgill