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Proceedings Paper

Distortion- and intensity-invariant optical correlation filter system
Author(s): Mohammad Rahmati; Laurence G. Hassebrook; M. Bhushan
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Paper Abstract

A new approach to intensity-invariant filter design is introduced. This approach post-processes a distortion-invariant correlation response. The correlation responses of a filter bank are mapped into a 3-D volume matrix where the third dimension is intensity. For each given intensity level the volume matrices are weighted by a complex exponential with unit magnitude and linear in phase. These weighted volume matrices are summed together to form filter volume matrix. Pages or slices from the volume are used as a bank of 2-D correlation filters. Computer simulations are included to quantify the performance of this approach.

Paper Details

Date Published: 1 December 1991
PDF: 10 pages
Proc. SPIE 1567, Applications of Digital Image Processing XIV, (1 December 1991); doi: 10.1117/12.50839
Show Author Affiliations
Mohammad Rahmati, Univ. of Kentucky (United States)
Laurence G. Hassebrook, Univ. of Kentucky (United States)
M. Bhushan, Univ. of Kentucky (United States)


Published in SPIE Proceedings Vol. 1567:
Applications of Digital Image Processing XIV
Andrew G. Tescher, Editor(s)

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