ModelFest.df: Contrast Sensitivity of the Observers from the ModelFest...

Description Usage Format Details Source References Examples

Description

The data set contains the log contrast sensitivity measurments for the 43 stimuli used in the ModelFest consortium with 4 repeats for each of the 16 observers.

Usage

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Format

A data frame with 2752 observations on the following 3 variables.

LContSens

a numeric vector indicating the measured log contrast sensitivity, inverse of the log contrast threshold

Obs

a factor with 16 levels, indicating the initials of the observers

Stim

a factor with 43 levels coding each of the stimuli standardized for this study

Details

The ModelFest consortium was composed of a group of investigators from 10 laboratories who undertook to obtain measures of contrast sensitivity on a set of standardized achromatic stimuli, varying in spatial configuration, using a standardized set of procedures.

Source

http://journalofvision.org/5/9/6/modelfestbaselinedata.csv

References

Carney, T., Tyler, C.W., Watson, A.B., Makous, W., Beutte, B., Chen, C.C., Norcia, A.M., Klein, S.A.(2000) Modelfest: year one results and plans for future years. In: B.E. Rogowitz, T.N. Pappas (eds.) Proceedings of SPIE: Human Vision and Electronic Imaging V, vol. 3959, pp. 140–151. SPIE

Watson, A.B., Ahumada, A.J. (2005) A standard model for foveal detection of spatial contrast. Journal of Vision 5, 717–740

Watson, A. (2006) The spatial standard observer: A human vision model for display inspection. SID Symposium Digest of Technical Papers, vol. 37, pp. 1312–1315, SID

Examples

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Example output

'data.frame':	2752 obs. of  3 variables:
 $ LContSens: num  1.81 1.78 1.76 1.67 2.03 ...
 $ Obs      : Factor w/ 16 levels "abw","acm","amn",..: 1 1 1 1 1 1 1 1 1 1 ...
 $ Stim     : Factor w/ 43 levels "Stim1","Stim2",..: 1 1 1 1 2 2 2 2 3 3 ...

MPDiR documentation built on May 31, 2017, 4:18 a.m.