Efficient utilization of aperture and detector by optimal coding k.J. myers1

R. F. Wagner, D. G. Brown, H. H. Barrett

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

Performance for several apertures is presented for a number of Rayleigh discrimination tasks with signal and background exactly specified. Performance is defined as the squared signal-to-noise ratio of an ideal observer determined from statistical decision theory. The conclusions of Wagner, Brown, and Metz (1981) are shown to hold for different source-pair orientations and some other well-known (but non-ideal) figures of merit. When the background is assumed to be a known constant, and the source width and separation are also known, the performance of a simple open aperture increases as the aperture is enlarged. For a known source width a complex aperture can be designed which will give performance superior to a large open aperture for these simple discrimination tasks. For any of these apertures to be clinically relevant, performance comparisons over a wider range of clinically realistic tasks, including signal and object variability, must be considered.

Original languageEnglish (US)
Pages (from-to)164-175
Number of pages12
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume1090
DOIs
StatePublished - May 1 1989

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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