Surfaces with steep variations in depth pose difficulties for orientationally tuned disparity filters.

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

Perception

journal_title

Perception

authors

Mayhew JE,Frisby JP

doi

10.1068/p080691

subject

Has Abstract

pub_date

1979-01-01 00:00:00

pages

691-8

issue

6

eissn

0301-0066

issn

1468-4233

journal_volume

8

pub_type

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