Image Enhancement Techniques for Cockpit Displays

Abstract

The major objective of this research program was to develop and evaluate three techniques for the real-time enhancement of sensor displays in the airborne cockpit environment. Two enhancement techniques developed and optimized for contrast enhancement are Local Area Brightness and Gain Control (LABGC) and Local Area Histogram Equalization (LAHE). Haar Transform Crispening (HTC) is another technique that was developed and optimized during this program. HTC may be used to sharpen edges in an image which are blurred due to misfocused optics or MTF roll-off. An evaluation of the enhancement techniques includes subjective evaluations for specific operator tasks and a comparison of mechanization complexities. Photographs of original and enhanced images are included.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1974
Accession Number
ADA014928

Entities

People

  • David J. Ketcham
  • J. W. Weber
  • Roger W. Lowe

Organizations

  • Hughes Aircraft Company

Tags

Communities of Interest

  • Energy and Power Technologies
  • Human Systems
  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Algorithms
  • Circuits
  • Computations
  • Converters
  • Detection
  • Detectors
  • Display Systems
  • Dynamic Range
  • Environment
  • Gray Scale
  • Identification
  • Optical Detectors
  • Recognition
  • Target Detection
  • Target Recognition
  • Two Dimensional
  • Video Tapes

Readers

  • Image Processing and Computer Vision.
  • Software Engineering
  • Vision Science/Vision Psychology/Cognitive Neuroscience.