Methods for estimating the efficiency of human and computational observers in ultrasonography

Michael F. Insana, Timothy J. Hall

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Experimental methods for estimating detection efficiencies of human and computational observers viewing low-contrast targets in acoustic noise are described. Sonographic image simulations were generated with signal and noise properties specified exactly. These images were presented to observers in a two-alternative forced-choice experiment. Relative to the ideal observer, human observers were less than 50% efficient for detecting targets of various energies. The studies were limited to situations where target diameters were much larger than the correlation length of the noise. In such cases, the observer's inability to uncorrelate the noise did not significantly reduce target detectability. We also found that the performance of a computational observer was proportional to the average human performance, suggesting a possible role for computational observers in image evaluation.

Original languageEnglish (US)
Title of host publicationInformation Processing in Medical Imaging - 13th International Conference, IPMI 1993, Proceedings
EditorsHarrison H. Barrett, Arthur F. Gmitro
PublisherSpringer-Verlag Berlin Heidelberg
Pages542-552
Number of pages11
ISBN (Print)9783540568001
DOIs
StatePublished - 1993
Externally publishedYes
Event13th International Conference on Information Processing in Medical Imaging, IPMI 1993 - Flagstaff, United States
Duration: Jun 14 1993Jun 18 1993

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume687 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Other

Other13th International Conference on Information Processing in Medical Imaging, IPMI 1993
CountryUnited States
CityFlagstaff
Period6/14/936/18/93

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)

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  • Cite this

    Insana, M. F., & Hall, T. J. (1993). Methods for estimating the efficiency of human and computational observers in ultrasonography. In H. H. Barrett, & A. F. Gmitro (Eds.), Information Processing in Medical Imaging - 13th International Conference, IPMI 1993, Proceedings (pp. 542-552). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 687 LNCS). Springer-Verlag Berlin Heidelberg. https://doi.org/10.1007/bfb0013810