Stereoscopic depth but not shape perception from second-order stimuli

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Stereoscopic depth but not shape perception from second-order stimuli

Depth can be seen using either linear (first-order) or non-linear (second-order) stereo micropatterns when, in the latter, contrast envelopes contain the disparity information. We examined whether a second-order mechanism can contribute to the perception of 3-D surface shape. Using a variety of different stimulus types, we show that for each, shape is easy to see with linear stimuli. Over a wid...

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ژورنال

عنوان ژورنال: Vision Research

سال: 1999

ISSN: 0042-6989

DOI: 10.1016/s0042-6989(98)00224-7