Accession Number : ADA112338

Title :   Exposing Objects under Light Cloud Cover by Adaptive Homomorphic Filtering.

Descriptive Note : Technical rept.,

Corporate Author : MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB

Personal Author(s) : Peli,Tamar ; Quatieri,Thomas F

PDF Url : ADA112338

Report Date : 06 Jan 1982

Pagination or Media Count : 47

Abstract : In this report, we demonstrate the use of adaptive homomorphic filtering in exposing objects under light cloud cover. More specifically, the homomorphic filter invoked is space-varying and is parameterized by the local mean level of the degraded image which serves as an indication of the extent of local cloud cover degradation. We show through some preliminary experiments that this approach compares favorably with long space methods such as deterministic and stochastic homomorphic filtering and an iterative version of stochastic homomorphic filtering. (Author)

Descriptors :   *Aerial reconnaissance, *Image intensification, *Adaptive filters, Image processing, Cloud cover, Compensation, Degradation, Iterations, Noise reduction, Stochastic processes, Low density, High resolution

Subject Categories : Printing and Graphic Arts
      Human Factors Engineering & Man Machine System

Distribution Statement : APPROVED FOR PUBLIC RELEASE