English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  The influence of cyclovergence on unconstrained stereoscopic matching

van Ee, R., & van Dam, L. (2003). The influence of cyclovergence on unconstrained stereoscopic matching. Vision Research, 43(3), 307-319. doi:10.1016/S0042-6989(02)00496-0.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-DCFE-C Version Permalink: http://hdl.handle.net/21.11116/0000-0005-6B10-1
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
van Ee, R, Author
van Dam, LCJ1, Author              
Affiliations:
1External Organizations, ou_persistent22              

Content

show
hide
Free keywords: -
 Abstract: In order to perceive depth from binocular disparities the visual system has to identify matching features of the two retinal images. Normally, the assigned disparity is unambiguously determined by monocularly visible matching constraints. The assigned disparity is ambiguous when matching is unconstrained, such as when we view an isolated long oblique disparate line. Recently we found that in order to perceive a depth probe at the same depth as the oblique line, the probe needs to have the same horizontal disparity as the line (i.e. matching occurs along horizontal “search-zones” [Vis. Res. 40 (2000) 151]). Here we examined whether the depth probe disparity in unconstrained matching of long lines is influenced by cyclovergence, by cyclorotation between stereogram half-images, or by combinations of the two. We measured retinal rotation (>6 deg in cyclovergence conditions). We found that in those conditions in which the retinal images were the same (a condition with, say, both zero cyclovergence and zero cyclorotation between the half-images, creates the same retinal images as a condition with both 6 deg cyclovergence and 6 deg cyclorotation) assigned depth was the same too, i.e. independent of cyclovergence. Thus, the assigned depth of the test-line seems to be determined solely by the retinal test-line orientation, implying that the binocular matching algorithm does not seem to incorporate the eyes’ cyclovergence when matching is unconstrained.

Details

show
hide
Language(s):
 Dates: 2003-02
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1016/S0042-6989(02)00496-0
BibTex Citekey: 4559
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Vision Research
  Other : Vision Res.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Amsterdam : Pergamon
Pages: - Volume / Issue: 43 (3) Sequence Number: - Start / End Page: 307 - 319 Identifier: ISSN: 0042-6989
CoNE: https://pure.mpg.de/cone/journals/resource/954925451842