Scale Invariant Optical Transform

1 June 1976

journal article
Published by SPIE-Intl Soc Optical Eng in Optical Engineering

Vol. 15 (3) , 153258
https://doi.org/10.1117/12.7971962

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.

Keywords

MELLIN TRANSFORM
FOURIER TRANSFORM
REAL TIME
TRANSFORM THEORY
PATTERN RECOGNITION
SIGNAL ANALYSIS
SHIFT INVARIANT
SCALE INVARIANCE

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