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Proceedings Paper

Performance analysis of optical nonlinear morphological correlation under unknown illumination conditions
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Paper Abstract

We investigate the performance of morphological correlation under different illumination conditions. The morphological correlation is shown to be invariant to uniform input-image illumination when the input-image illumination is higher than that of the reference. Accordingly, illumination- independent pattern recognition can be realized using morphological correlation provided the reference is multiplied by a proper number less than unity or the input image is multiplied by a number greater than unity before threshold-decomposition. In addition, the correlation peak tends to get broader when illumination of the input is different from that of the reference. Computer simulation results are provided.

Paper Details

Date Published: 1 October 1999
PDF: 9 pages
Proc. SPIE 3804, Algorithms, Devices, and Systems for Optical Information Processing III, (1 October 1999); doi: 10.1117/12.363956
Show Author Affiliations
ShuQun Zhang, Univ. of Dayton (United States)
Mohammad A. Karim, Univ. of Tennessee/Knoxville (United States)


Published in SPIE Proceedings Vol. 3804:
Algorithms, Devices, and Systems for Optical Information Processing III
Bahram Javidi; Demetri Psaltis, Editor(s)

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