Bandpass channels, zero-crossings, and early visual information processing
JOSA, Vol. 69, Issue 6, pp. 914-916 (1979)
http://dx.doi.org/10.1364/JOSA.69.000914
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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
Citation
D. Marr, S. Ullman, and T. Poggio, "Bandpass channels, zero-crossings, and early visual information processing," J. Opt. Soc. Am. 69, 914-916 (1979)
http://www.opticsinfobase.org/josa/abstract.cfm?URI=josa-69-6-914
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