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Journal Article

Bandpass Channels, Zero-Crossings, and Early Visual Information Processing

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Poggio,  T
Max Planck Institute for Biological Cybernetics, Max Planck Society;
Former Department Information Processing in Insects, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Citation

Marr, D., Ullman, S., & Poggio, T. (1979). Bandpass Channels, Zero-Crossings, and Early Visual Information Processing. Journal of the Optical Society of America, 69(6), 914-916. doi:10.1364/josa.69.000914.


Cite as: https://hdl.handle.net/21.11116/0000-0006-80CB-4
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.