Exposing Objects under Light Cloud Cover by Adaptive Homomorphic Filtering.

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)

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Document Details

Document Type
Technical Report
Publication Date
Jan 06, 1982
Accession Number
ADA112338

Entities

People

  • Tamar Peli
  • Thomas F. Quatieri

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Adaptive Filters
  • Attenuation
  • Cloud Cover
  • Clouds
  • Contrast
  • Dynamic Range
  • Energy Bands
  • Filters
  • Filtration
  • Frequency
  • High Pass Filters
  • Illumination
  • Power Spectra
  • Reflectance
  • Spectra
  • Transfer Functions
  • Two Dimensional

Fields of Study

  • Mathematics

Readers

  • Computational Fluid Dynamics (CFD)
  • Image Processing and Computer Vision.
  • Systems Analysis and Design

Technology Areas

  • Space
  • Space - Space Objects