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.
A data frame with 2752 observations on the following 3 variables.
a numeric vector indicating the measured log contrast sensitivity, inverse of the log contrast threshold
a factor with 16 levels, indicating the initials of the observers
a factor with 43 levels coding each of the stimuli standardized for this study
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.
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
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