Paper
1 July 1992 Hierarchical filter sets for distortion-invariant OPR
David P. Casasent
Author Affiliations +
Abstract
Our research group at Carnegie Mellon University has devised a large number of new distortion-invariant optical correlation filters. We briefly review our hierarchical inference approach to scene analysis, our minimum noise and correlation energy (MINACE) filters, the use of morphological hit-miss (rank-order) and MINACE filters for detection, and the use of MINACE filters with different control parameters c for all three levels of scene analysis (detection, recognition, identification). We then detail new generalized rotation-invariant filters with initial test results.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
David P. Casasent "Hierarchical filter sets for distortion-invariant OPR", Proc. SPIE 1701, Optical Pattern Recognition III, (1 July 1992); https://doi.org/10.1117/12.138324
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KEYWORDS
Image filtering

Optical filters

Optical pattern recognition

Electronic filtering

Optical correlators

Detection and tracking algorithms

Fourier transforms

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