Accession Number : ADD005042

Title :   Positional, Rotational and Scale Invariant Optical Correlation Method and Apparatus.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Casasent,David Paul ; Psaltis,Demetri

Report Date : 11 Apr 1978

Pagination or Media Count : 9

Abstract : The present invention relates generally to optical pattern recognition systems, and, more particularly, to optical correlation apparatus and methods utilizing transformations that are shift, scale and rotationally invariant.

Descriptors :   *Patents, *Electrooptics, Correlation techniques, Optical equipment, Pattern recognition, Fourier transformation

Subject Categories : Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE