Abstract

Under appropriate conditions zero-crossings of a bandpass signal are very rich in information. The authors examine here the relevance of this result to the early stages of visual information processing, where zero-crossings in the output of independent spatial-frequency-tuned channels may contain sufficient information for much of the subsequent processing.

© 1979 Optical Society of America

Is Fourier analysis performed by the visual system or by the visual investigator

Alfred L. Ochs
J. Opt. Soc. Am. 69(1) 95-98 (1979)

Smallest channel in early human vision

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Hierarchical detection structures in vision

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Comments on a method for processing stellar speckle data

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Some spectral properties of random arrays of grains*

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