Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4038418 | Vision Research | 2005 | 15 Pages |
Abstract
Oriented textures were produced with the use of probability density functions modulated sinusoidally over orientation. Orientational contrast sensitivity functions (OCSFs) for a task involving the discrimination of these patterns from orientationally-random textures were found for several human observers. An inverse Fourier transform of this OCSF yielded a weighting function, or filter, defined over orientation. The weighting function is broad, with a half-height full-width of 34 deg. This orientational filter was able to predict human performance in further discrimination tasks employing a variety of probability density functions over orientation.
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Authors
D.R.T. Keeble, F.A.A. Kingdom, B. Moulden, M.J. Morgan,