Recursive Estimation Techniques for Detection of Small Objects in Infrared Image Data

Abstract

This paper describes a recursive detection scheme for point targets in infrared (IR) images. Estimation of the background noise is done using a weighted autocorrelation matrix update method and the detection statistic is calculated using a recursive technique. A weighting factor allows the algorithm to have finite memory and deal with nonstationary noise characteristics. The detection statistic is created by using a matched filter for colored noise, using the estimated noise autocorrelation matrix. The relationship between the weighting factor, the nonstationarity of the noise and the probability of detection is described. Some results on one- and two-dimensional infrared images are presented.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1992
Accession Number
ADA250942

Entities

People

  • J. R. Zeidler
  • T. Soni
  • W. H. Ku

Organizations

  • Naval Command, Control and Ocean Surveillance Center

Tags

Communities of Interest

  • Advanced Electronics
  • Biomedical
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Acoustics
  • Adaptive Filters
  • Algorithms
  • Data Science
  • Detection
  • Detectors
  • False Alarms
  • Filters
  • Information Science
  • Infrared Images
  • Matched Filters
  • Military Research
  • Probability
  • Signal Processing
  • Stationary
  • Statistics
  • Two Dimensional

Fields of Study

  • Engineering

Readers

  • Computer Vision.
  • Sensor Fusion and Tracking Systems.
  • Statistical inference.