Detection and discrimination of texture modulations defined by orientation, spatial frequency, and contrast

Journal of the Optical Society of America A: Optics and Image Science, and Vision

Volumn 20, Issue 3, 2003, Pages 401-410

  Prins, Nicolaas ^a   Kingdom, Frederick A A ^a  

^a MCGILL UNIVERSITY   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

IMAGE PROCESSING; MODULATION; OPTICAL FILTERS; TEXTURES;

SPATIAL FREQUENCY;

PHYSICAL OPTICS;

ARTICLE; CONTRAST SENSITIVITY; DIFFERENTIAL THRESHOLD; HUMAN; MALE; METHODOLOGY; PERCEPTIVE DISCRIMINATION; PHOTOSTIMULATION; PHYSIOLOGY; PSYCHOLOGICAL MODEL;

CONTRAST SENSITIVITY; DIFFERENTIAL THRESHOLD; DISCRIMINATION (PSYCHOLOGY); HUMANS; MALE; MODELS, PSYCHOLOGICAL; PHOTIC STIMULATION;

EID: 0037363542     PISSN: 10847529     EISSN: None     Source Type: Journal    
DOI: 10.1364/JOSAA.20.000401     Document Type: Article

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20. The statistical test employed to assess goodness of fit indicated a poor fit for the identification curve of NP in the OM-CM condition (p < 0.01). However, as the reader may verify by inspection of Fig. 4, the data appear to fit the curve quite well. As it turns out, the poor goodness of fit is due almost entirely to one data point, namely, identification performance for OM textures at the second-highest value of modulation amplitude. This suggests that the poor fit is likely a spurious result. The p value of the deviance score calculated when this data point is omitted is 0.57.
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