Accession Number : ADD010925

Title :   Incoherent Optical Heterodyne Fourier Transformer.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : McDonnell,M M

Report Date : 15 Sep 1982

Pagination or Media Count : 14

Abstract : This invention has significance in the area of automated image analysis for derivation of intelligence information from aerial photography or other image inputs. The Fourier Transform has proven itself to be useful for this purpose and this invention offers a lower noise Fourier Transform than is possible with known analog methods.

Descriptors :   *Patent applications, *Optical processing, *Image processing, *Fourier transformation, Heterodyning, Low noise, Incoherence, Light, Aerial photography, Phase modulation, Transparence, Fresnel zones, Photographic plates

Subject Categories : Numerical Mathematics
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE