Robust free-viewpoint video system for sports scenes

This contribution describes robust methods to provide a free viewpoint video visualisation of sport scenes using multi-camera set-up. This allows generation of novel views of actions from any angle and is of interest for visualisation in TV productions. The system utilises 3D reconstruction techniques previously developed for studio use. This paper discusses some experiences found while applying these techniques for an uncontrolled outdoor environment and addresses robustness issues. This includes segmentation, camera calibration and 3D reconstruction. A number of different 3D representations, including billboards, visual hulls and view-dependent geometry are evaluated for the purpose.

This document was originally published in Proceeding of 3DVTV conference 2007, Kos, Greece.

It was written in collaboration with the following authors: Graham Thomas and Oliver Grau (BBC R&D), Adrian Hilton, J. Kilner, J. Starck (University of Surrey)

White Paper copyright

© BBC. All rights reserved. Except as provided below, no part of a White Paper may be reproduced in any material form (including photocopying or storing it in any medium by electronic means) without the prior written permission of BBC Research except in accordance with the provisions of the (UK) Copyright, Designs and Patents Act 1988.

The BBC grants permission to individuals and organisations to make copies of any White Paper as a complete document (including the copyright notice) for their own internal use. No copies may be published, distributed or made available to third parties whether by paper, electronic or other means without the BBC's prior written permission.