Classification image weights and internal noise level estimation

被引：157

作者：

Ahumada, Albert J., Jr. ^{[1
]}

机构：

[1] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA

来源：

JOURNAL OF VISION | 2002年 / 2卷 / 01期

关键词：

discrimination; detection; vision; noise;

D O I：

10.1167/2.1.8

中图分类号：

R77 [眼科学];

学科分类号：

100212 ;

摘要：

For the linear discrimination of two stimuli in white Gaussian noise in the presence of internal noise, a method is described for estimating linear classification weights from the sum of noise images segregated by stimulus and response. The recommended method for combining the two response images for the same stimulus is to difference the average images. Weights are derived for combining images over stimuli and observers. Methods for estimating the level of internal noise are described with emphasis on the case of repeated presentations of the same noise sample. Simple tests for particular hypotheses about the weights are shown based on observer agreement with a noiseless version of the hypothesis.

引用

页码：121 / 131

页数：11

共 24 条

[1] Maximum-Likelihood and Maximum-A-Posteriori estimates of human-observer templates [J].

Abbey, CK ;

Eckstein, MP .

MEDICAL IMAGING 2001: IMAGE PERCEPTION AND PERFORMANCE, 2001, 4324 :114-122

[2] Estimates of human-observer templates for a simple detection task in correlated noise. [J].

Abbey, CK ;

Eckstein, MP .

MEDICAL IMAGING 2000: IMAGE PERCEPTION AND PERFORMANCE, 2000, 3981 :70-77

[3] Estimation of human-observer templates in two-alternative forced-choice experiments. [J].

Abbey, CK ;

Eckstein, MP ;

Bochud, FO .

MEDICAL IMAGING 1999: IMAGE PERCEPTION AND PERFORMANCE, 1999, 3663 :284-295

[4]

ABBEY CK, 2001, P 17 INT C INF PROC

[5] Classification image analysis: Estimation and statistical inference for two-alternative forced-choice experiments [J].

Abbey, Craig K. ;

Eckstein, Miguel P. .

JOURNAL OF VISION, 2002, 2 (01) :66-78

[6] STIMULUS FEATURES IN SIGNAL DETECTION [J].

AHUMADA, A ;

LOVELL, J .

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 1971, 49 (06) :1751-&

[7]

AHUMADA A, 1975, J ACOUST SOC AM, V57, P385, DOI 10.1121/1.380453

[8]

Ahumada A. J. Jr., 1998, IOVS, V39, pS1109

[9]

Ahumada AJ, 1999, INVEST OPHTH VIS SCI, V40, pS572

[10]

AHUMADA AJ, 1996, PERCEPTION, V26, P18

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