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Ordinal judgments of depth in monocularly- and stereoscopically-viewed photographs of complex natural scenes

Hornsey, RL and Hibbard, PB and Scarfe, P (2016) Ordinal judgments of depth in monocularly- and stereoscopically-viewed photographs of complex natural scenes. In: UNSPECIFIED, ? - ?.

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Abstract

© 2015 IEEE. This study investigated the contribution of stereoscopic depth cues to the reliability of ordinal depth judgments in complex natural scenes. Participants viewed photographs of cluttered natural scenes, either monocularly or stereoscopically. On each trial, they judged which of two indicated points in the scene was closer in depth. We assessed the reliability of these judgments over repeated trials, and how well they correlated with the actual disparities of the points between the left and right eyes' views. The reliability of judgments increased as their depth separation increased, was higher when the points were on separate objects, and deteriorated for point pairs that were more widely separated in the image plane. Stereoscopic viewing improved sensitivity to depth for points on the same surface, but not for points on separate objects. Stereoscopic viewing thus provides depth information that is complementary to that available from monocular occlusion cues.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Published proceedings: 2015 International Conference on 3D Imaging, IC3D 2015 - Proceedings
Subjects: B Philosophy. Psychology. Religion > BF Psychology
T Technology > TK Electrical engineering. Electronics Nuclear engineering
T Technology > TR Photography
Divisions: Faculty of Science and Health > Psychology, Department of
Depositing User: Paul Hibbard
Date Deposited: 05 Feb 2016 20:34
Last Modified: 17 Aug 2017 17:28
URI: http://repository.essex.ac.uk/id/eprint/16025

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