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Proceedings Paper

Studio production system for dynamic 3D content
Author(s): Oliver Grau
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Paper Abstract

This contribution describes a studio system that supports the production of dynamic 3D content. The system is based on a multi-camera approach to capture dynamic scenes in a studio equipped with a chroma-keying facility. This paper focusses on the real-time functionality of the system. Three different methods for the computation of the visual hull from silhouette images were implemented and compared. Two methods use a volumetric representation (3D-array and octree representation). The third method uses a new line representation and has been shown to deliver more accurate surface approximations of objects. Further to the capture functionality, the system provides visualisation tools for planning the production and on-set visualisation. The latter includes a pre-view of the composed programme for the director and an immersive feedback for the actor. The immersive feedback is implemented using a view-dependent projection onto a special retro-reflective chroma-keying cloth and is not interfering with the shape capturing sub-system.

Paper Details

Date Published: 23 June 2003
PDF: 10 pages
Proc. SPIE 5150, Visual Communications and Image Processing 2003, (23 June 2003); doi: 10.1117/12.509898
Show Author Affiliations
Oliver Grau, BBC Research and Development (United Kingdom)

Published in SPIE Proceedings Vol. 5150:
Visual Communications and Image Processing 2003
Touradj Ebrahimi; Thomas Sikora, Editor(s)

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