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Vision Research 41 (2001) 31333143 Effects of horizontal and vertical additive disparity noise on
 

Summary: Vision Research 41 (2001) 31333143
Effects of horizontal and vertical additive disparity noise on
stereoscopic corrugation detection
Stephen Palmisano a,
*, Robert S. Allison b,c
, Ian P. Howard c
a
Department of Psychology, Uni6ersity of Wollongong, Wollongong, New South Wales 2522, Australia
b
Department of Computer Science, York Uni6ersity, Toronto, Ontario, Canada, M3J 1P3
c
Centre for Vision Research, York Uni6ersity, Toronto, Ontario, Canada, M3J 1P3
Received 20 October 2000; received in revised form 23 April 2001
Abstract
Stereoscopic corrugation detection in the presence of horizontal- and vertical- additive disparity noise was examined using a
signal detection paradigm. Random-dot stereograms either represented a 3-D square-wave surface with various amounts of
Gaussian-distributed additive disparity noise or had the same disparity values randomly redistributed. Stereoscopic detection of
2 arcmin peak amplitude corrugations was found to tolerate significantly greater amplitudes of vertical-disparity noise than
horizontal-disparity noise--irrespective of whether the corrugations were horizontally or vertically oriented. However, this
directional difference in tolerance to disparity noise was found to reverse when the corrugation and noise amplitudes were

  

Source: Allison, Robert - Department of Computer Science, York University (Toronto)

 

Collections: Computer Technologies and Information Sciences; Biology and Medicine