Binocular disparity only comes into play when everything else fails; a finding with broader implications than one might suppose

Authors: Pizlo, Zygmunt¹; Li, Yunfeng¹; Steinman, Robert M.¹

Source: Spatial Vision, Volume 21, Number 6, 2008 , pp. 495-508(14)

Publisher: VSP, an imprint of Brill

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Abstract:

This paper calls attention to research showing that binocular disparity, which is an effective cue to depth, plays a secondary role, at best, in the perception of 3D shape. This claim has implications both for how shape should be studied and how this unique perceptual property should be modeled. These issues are discussed from a historical perspective, which shows how the failure to appreciate the importance of the Gestalt grouping principle called 'Figure-Ground Organization' led to many unfruitful efforts. It also calls attention to how this situation can be remedied.

Keywords: BINOCULAR VISION; 3D SHAPE; SIMPLICITY PRINCIPLE; NATIVISM/EMPIRICISM; FIGURE-GROUND ORGANIZATION

Document Type: Research article

DOI: 10.1163/156856808786451453

Affiliations: 1: Department of Psychological Sciences, Purdue University, West Lafayette, IN, USA

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