The Performance of Small Support Spatial and Temporal Filters for Dim Point Target Detection in IR Image Sequences

Abstract

The effectiveness of small support spatial filters based on mean, median and morphological opening for the detection of scintillating ultra-dim stationary point targets in IR image sequences has been investigated. The effectiveness of two temporal filters was also studied. The filters were applied to two IR image sequences; an aircraft approaching in an uncluttered background, and an aircraft receding in a bright cloudy background. The spatial filters were effective in detecting the target in the benign background, but neither the spatial nor one of the temporal filters were effective in the cluttered environment A combination of absolute frame differencing and small support spatial filtering to correct for sensor motion was found to give sufficient increase in signal to clutter ratio to allow detection.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 2002
Accession Number
ADA404004

Entities

People

  • R. C. Warren

Organizations

  • Defence Science and Technology Group

Tags

Communities of Interest

  • Advanced Electronics
  • Ground and Sea Platforms
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Aircrafts
  • Algorithms
  • Australia
  • Department Of Defense
  • Detection
  • Detectors
  • False Alarms
  • Filtration
  • Matched Filters
  • Scintillation
  • Sequences
  • Spatial Filtering
  • Standards
  • Stationary
  • Target Detection
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Computer Vision.
  • Image Processing and Computer Vision.