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Recovering Refined Surface Normals for Relighting Clothing in Dynamic Scenes

Csakany, P, Vajda, F and Hilton, A (2007) Recovering Refined Surface Normals for Relighting Clothing in Dynamic Scenes

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Abstract

In this paper we present a method to relight captured 3D video sequences of non-rigid, dynamic scenes, such as clothing of real actors, reconstructed from multiple view video. A view-dependent approach is introduced to refine an initial coarse surface reconstruction using shape-from-shading to estimate detailed surface normals. The prior surface approximation is used to constrain the simultaneous estimation of surface normals and scene illumination, under the assumption of Lambertian surface reflectance. This approach enables detailed surface normals of a moving non-rigid object to be estimated from a single image frame. Refined normal estimates from multiple views are integrated into a single surface normal map. This approach allows highly non-rigid surfaces, such as creases in clothing, to be relit whilst preserving the detailed dynamics observed in video.

Item Type: Conference or Workshop Item (Paper)
Additional Information: This paper is a postprint of a paper submitted to and accepted for publication in 4th European Conference on Visual Media Production 2007 IETCVMP 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 12:21
Last Modified: 23 Sep 2013 19:00
URI: http://epubs.surrey.ac.uk/id/eprint/111035

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