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Journal of Electronic Imaging

Multicamera fusion for shape estimation and visibility analysis of unknown deforming objects
Author(s): Evgeny Nuger; Beno Benhabib
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Paper Abstract

A method is proposed for fused three-dimensional (3-D) shape estimation and visibility analysis of an unknown, markerless, deforming object through a multicamera vision system. Complete shape estimation is defined herein as the process of 3-D reconstruction of a model through fusion of stereo triangulation data and a visual hull. The differing accuracies of both methods rely on the number and placement of the cameras. Stereo triangulation yields a high-density, high-accuracy reconstruction of a surface patch from a small surface area, while a visual hull yields a complete, low-detail volumetric approximation of the object. The resultant complete 3-D model is, then, temporally projected based on the tracked object’s deformation, yielding a robust deformed shape prediction. Visibility and uncertainty analyses, on the projected model, estimate the expected accuracy of reconstruction at the next sampling instant. In contrast to common techniques that rely on

Paper Details

Date Published: 9 June 2016
PDF: 22 pages
J. Electron. Imag. 25(4) 041009 doi: 10.1117/1.JEI.25.4.041009
Published in: Journal of Electronic Imaging Volume 25, Issue 4
Show Author Affiliations
Evgeny Nuger, Univ. of Toronto (Canada)
Beno Benhabib, Univ. of Toronto (Canada)

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