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PubMed · 4022644

Spatial frequency range in the detection process--1. Narrow bars.

D Brogan
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Abstract

The effect upon the detectability of narrow bars of ideal low-pass and high-pass filters was investigated. The results indicate that for optimum detection of the stimulus, spatial frequency components up to about 10 c/deg 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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FiltrationForm PerceptionHumansModels, NeurologicalPattern Recognition, VisualVisual AcuityJournal ArticleResearch Support, Non-U.S. Gov't

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D Brogan. 1985. Spatial frequency range in the detection process--1. Narrow bars.. https://pubmed.ncbi.nlm.nih.gov/4022644/

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