Abstract:
:Surfaces possessing steep variations in depth present severe difficulties for orientationally tuned filter models of stereopsis. These difficulties are discussed in connection with a random-dot stereogram depicting a surface with steep horizontal corrugations. As expected on theoretical grounds, we find that a vertical +/- 45 degrees orientationally filtered version of this stereogram cannot be fused. Moreover, it is demonstrated that a horizontal +/- 45 degrees filtered version can be fused only with difficulty and its stereo percept is poor compared to that of the unfiltered original. It is concluded that orientated filters seem ill-designed to mediate the extraction of disparity cues, at least in the cases under consideration.
journal_name
Perceptionjournal_title
Perceptionauthors
Mayhew JE,Frisby JPdoi
10.1068/p080691subject
Has Abstractpub_date
1979-01-01 00:00:00pages
691-8issue
6eissn
0301-0066issn
1468-4233journal_volume
8pub_type
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