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Projective Surface Refinement for Free-Viewpoint Video

Miller, G, Starck, JR and Hilton, A (2006) Projective Surface Refinement for Free-Viewpoint Video

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Abstract

This paper introduces a novel method of surface refinement for free-viewpoint video of dynamic scenes. Unlike previous approaches, the method presented here uses both visual hull and silhouette contours to constrain refinement of viewdependent depth maps from wide baseline views. A technique for extracting silhouette contours as rims in 3D from the view-dependent visual hull (VDVH) is presented. A new method for improving correspondence is introduced, where refinement of the VDVH is posed as a global problem in projective ray space. Artefacts of global optimisations are reduced by incorporating rims as constraints. Real time rendering of virtual views in a free-viewpoint video system is achieved using an image+depth representation for each real view. Results illustrate the high quality of rendered views achieved through this refinement technique.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Copyright 2006 IET. This paper is a postprint of a paper submitted to and accepted for publication in IET European Conference on Visual Media Production Proceedings and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at IET Digital Library
Divisions: Faculty of Engineering and Physical Sciences > Electronic Engineering > Centre for Vision Speech and Signal Processing
Depositing User: Symplectic Elements
Date Deposited: 06 Feb 2012 11:46
Last Modified: 23 Sep 2013 19:00
URI: http://epubs.surrey.ac.uk/id/eprint/111026

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