Accession Number : ADA299099

Title :   Studies of the Effect of Image Degradation and Recombination.

Descriptive Note : Final rept. 1 Mar 92-1 Sep 95,

Corporate Author : ARIZONA STATE UNIV TEMPE DEPT OF INDUSTRIAL AND MANAGEMENT SYSTEMS ENGINEERIN G

Personal Author(s) : Uttal, William R.

PDF Url : ADA299099

Report Date : 01 SEP 1995

Pagination or Media Count : 87

Abstract : During the three year period of this grant, progress was made on two major series of experiments and some minor themes. In the first major one, we examined the effect of noise, brightness, contrast, and geometrical artifacts on a detection task simulating enhanced night vision devices. In the second, we explored the effects of noise, Fourier filtering, reduced acuity (by means of blocking) and combinations thereof on the discrimination and recognition of aircraft silhouettes and faces. The major empirical contribution of this work was the parametric exploration of a number of the key variables in visual perception. The major theoretical contribution was the proof that the Fourier components of an image were, at best, only a partial determinant of our perceptual response.

Descriptors :   *TARGET DISCRIMINATION, *NIGHT VISION DEVICES, PARAMETRIC ANALYSIS, DEGRADATION, OPTICAL DETECTION, TARGET RECOGNITION, OPTICAL IMAGES, AERIAL TARGETS, VISUAL PERCEPTION, FOURIER ANALYSIS, VISUAL ACUITY, OPTICAL FILTERS, SILHOUETTES.

Subject Categories : Optical Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE