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Binocular vision and motion-in-depth

Binocular vision and motion-in-depth Spatial Vision , Vol. 21, No. 6, pp. 531 – 547 (2008) © Koninklijke Brill NV, Leiden, 2008. Also available online - www.brill.nl/sv Binocular vision and motion-in-depth JULIE M. HARRIS ∗ , HAROLD T. NEFS and CATHERINE E. GRAFTON Vision Laboratory, School of Psychology, University of St. Andrews, St. Andrews, Fife, KY16 9JP, Scotland, UK Received 14 March 2007; accepted 20 July 2007 Abstract —When an object moves in three dimensions, the two eyes’ views of the world deliver slightly different information to the visual system, providing binocular cues to depth and motion-in- depth. This short review describes the two main sources of binocular information, namely, changing disparity over time and interocular velocity differences; this could be used for the perception of motion-in-depth. We discuss the evidence obtained in recent years on the extent to which each of them is used in human vision. We also highlight outstanding questions and issues in the field that have yet to be addressed. Keywords : Motion-in-depth; depth; motion; binocular; velocity; stereopsis. 1. INTRODUCTION Objects at different distances from an observer subtend slightly different angles in the right and left eye. The difference between them, relative binocular disparity, can be used by http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Spatial Vision (continued as Seeing & Perceiving from 2010) Brill

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Publisher
Brill
Copyright
© 2008 Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0169-1015
eISSN
1568-5683
DOI
10.1163/156856808786451462
pmid
19017481
Publisher site
See Article on Publisher Site

Abstract

Spatial Vision , Vol. 21, No. 6, pp. 531 – 547 (2008) © Koninklijke Brill NV, Leiden, 2008. Also available online - www.brill.nl/sv Binocular vision and motion-in-depth JULIE M. HARRIS ∗ , HAROLD T. NEFS and CATHERINE E. GRAFTON Vision Laboratory, School of Psychology, University of St. Andrews, St. Andrews, Fife, KY16 9JP, Scotland, UK Received 14 March 2007; accepted 20 July 2007 Abstract —When an object moves in three dimensions, the two eyes’ views of the world deliver slightly different information to the visual system, providing binocular cues to depth and motion-in- depth. This short review describes the two main sources of binocular information, namely, changing disparity over time and interocular velocity differences; this could be used for the perception of motion-in-depth. We discuss the evidence obtained in recent years on the extent to which each of them is used in human vision. We also highlight outstanding questions and issues in the field that have yet to be addressed. Keywords : Motion-in-depth; depth; motion; binocular; velocity; stereopsis. 1. INTRODUCTION Objects at different distances from an observer subtend slightly different angles in the right and left eye. The difference between them, relative binocular disparity, can be used by

Journal

Spatial Vision (continued as Seeing & Perceiving from 2010)Brill

Published: Jan 1, 2008

Keywords: STEREOPSIS; MOTION; BINOCULAR; MOTION-IN-DEPTH; VELOCITY; DEPTH

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