Stabilized estimates of Hotelling-observer detection performance in patient-structured noise

Harrison H. Barrett, Craig K. Abbey, Brandon Gallas, Miguel Eckstein

Research output: Contribution to journalConference article

88 Scopus citations

Abstract

This paper addresses the question of how to determine the performance of the optimum linear or Hotelling observer when only sample images are available. This observer is specified by a template from which a scalar test statistic is computed for each image. It is argued that estimation of the Hotelling template is analogous to problems in image reconstruction, where many difficulties can be avoided through judicious use of prior information. In the present problem, prior information is enforced by choice of the representation used for the template. We consider specifically a representation based on Laguerre-Gauss functions, and we discuss ways of estimating the coefficients in this expansion from sample images for the problem of detection of a known signal. The method is illustrated by two experiments, one based on simulated nonuniform fields called lumpy backgrounds, the other on real coronary angiograms.

Original languageEnglish (US)
Pages (from-to)27-43
Number of pages17
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume3340
DOIs
StatePublished - Dec 1 1998
EventMedical Imaging 1998: Image Perception - San Diego, CA, United States
Duration: Feb 25 1998Feb 25 1998

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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