@inproceedings{1aade49cd38944dbba3bbe2c329f21f0,
title = "Methods for estimating the efficiency of human and computational observers in ultrasonography",
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.",
author = "Insana, \{Michael F.\} and Hall, \{Timothy J.\}",
note = "The authors wish to thank Larry Cook for severalh elpfuld iscussionsa nd for his participationa s an observerT. he importantc ommentsa nd criticismso f Bob Wagner and Harry Barrett are also greatly appreciatedT.h is work was supportedb y grants from the Whitaker FoundationS, iemensQ uantum,I nc., and the Clinical RadiologyF oundationa t KUMC.; 13th International Conference on Information Processing in Medical Imaging, IPMI 1993 ; Conference date: 14-06-1993 Through 18-06-1993",
year = "1993",
doi = "10.1007/bfb0013810",
language = "English (US)",
isbn = "9783540568001",
series = "Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)",
publisher = "Springer",
pages = "542--552",
editor = "Barrett, \{Harrison H.\} and Gmitro, \{Arthur F.\}",
booktitle = "Information Processing in Medical Imaging - 13th International Conference, IPMI 1993, Proceedings",
address = "Germany",
}