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Optical Engineering

Scale Invariant Optical Transform
Author(s): David Casasent; Demetri Psaltis
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Paper Abstract

The scale invariance of the Mellin transform and its optical synthesis in real-time are discussed. An initial off-line demonstration of an optical Mellin transform is presented. A scale invariant correlation and a combined Fourier-Mellin transform that is both scale and shift invariant are discussed. Applications of these transforms in optical data processing and optical pattern recognition are emphasized.

Paper Details

Date Published: 1 June 1976
PDF: 4 pages
Opt. Eng. 15(3) doi: 10.1117/12.7971962
Published in: Optical Engineering Volume 15, Issue 3
Show Author Affiliations
David Casasent, Carnegie-Mellon University (United States)
Demetri Psaltis, Carnegie-Mellon University (United States)


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