Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/39553
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Type: Journal article
Title: Free-response operator characteristic models for visual search
Author: Hutchinson, T.
Citation: Physics in Medicine and Biology, 2007; 52(10):L1-L3
Publisher: IOP Publishing Ltd
Issue Date: 2007
ISSN: 0031-9155
1361-6560
Organisation: Centre for Automotive Safety Research (CASR)
Statement of
Responsibility: 
T.P. Hutchinson
Abstract: When a person or an algorithm searches for targets throughout an image, there are no discrete trials, and the probability of a false alarm cannot be computed. Instead, what is observable is the rate of production of false alarms (per image, say), and data analysis uses the free-response version of signal detection theory. A previously-proposed model implies a power relationship for the free-response operating characteristic. The present letter introduces an extra parameter. The relationship between the logarithms of probability of correct detection and rate of false alarm production is no longer forced to be linear.
Keywords: Image Interpretation, Computer-Assisted; Algorithms; Models, Theoretical
RMID: 0020070747
DOI: 10.1088/0031-9155/52/10/L01
Appears in Collections:Centre for Automotive Safety Research publications

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