Accession Number : AD0871156

Title :   Optical Spatial Filter Analysis.

Descriptive Note : Final technical rept. May-Dec 69,

Corporate Author : ROME AIR DEVELOPMENT CENTER GRIFFISS AFB NY

Personal Author(s) : Wasielewski, James E.

Report Date : MAY 1970

Pagination or Media Count : 43

Abstract : The study was conducted to determine the existing optimum optical spatial filter for automatic target recognition. Two different types of spatial filters (matched and inverse) using two unique fabrication methods (holographic and in-line) were tested as a function of target scale, orientation, contrast and obscuration. The performance values for each filter and fabrication method were analyzed. An optimum overall filter was selected and a preliminary analysis was conducted to determine the effects of continuous tone imagery on filter performance. (Author)

Descriptors :   *TARGET RECOGNITION), (*OPTICAL IMAGES, (*OPTICAL FILTERS, MATHEMATICAL ANALYSIS), PHOTOGRAPHY, DIFFRACTION, COHERENT RADIATION, OPTICAL TRACKING.

Subject Categories : Holography
      Optical Detection and Detectors
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE