Accession Number : ADD009072

Title :   Multiple-Invariant Space-Variant Optical Processing.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

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

Report Date : 29 Dec 1981

Pagination or Media Count : 6

Abstract : This patent discloses a multiple-invariant, space variant optical processor in which two functions described by any number of separate distortion parameters can be correlated with no loss in signal-to-noise ratio of the correlation. The unknown distortion parameters can also be determined in this scheme. Experimental confirmation of the key step, determination of the non-linear phase portion of a complex optical transform can be provided. (Author)

Descriptors :   *Patents, *Optical correlators, *Optical processing, Signal to noise ratio, Real time, Pattern recognition, Transformations

Subject Categories : Information Science
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE