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PubMed · 4088670

Spatial frequency range in the detection process--2. Wide bars and sharp edge.

D Brogan
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Abstract

The effect upon the detectability of broad bars and a sharp edge of ideal low- and high-pass filters was investigated. The results indicate that, for optimum detection of the stimulus, spatial frequency components up to about 5 c deg-1 need to be transmitted. Two models (a multi-channel model, incorporating probability summation across spatial frequency, and a Grating Sensitivity Curve model) were used in attempting to fit the results. The multi-channel model provided a more realistic fit, but both models ultimately failed because of non-linearity in the summation of responses to frequency components.

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Form PerceptionHumansMaleModels, NeurologicalPattern Recognition, VisualSensory ThresholdsVisual AcuityJournal ArticleResearch Support, Non-U.S. Gov't

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D Brogan. 1985. Spatial frequency range in the detection process--2. Wide bars and sharp edge.. https://pubmed.ncbi.nlm.nih.gov/4088670/

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