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International Journal of Digital Multimedia Broadcasting
Volume 2010 (2010), Article ID 732683, 17 pages
http://dx.doi.org/10.1155/2010/732683
Research Article

Transmission of 3D Scenes over Lossy Channels

Department of Information Engineering, University of Padova, 35131 Padova, Italy

Received 26 May 2009; Accepted 23 September 2009

Academic Editor: Irene Cheng

Copyright © 2010 Pietro Zanuttigh et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This paper introduces a novel error correction scheme for the transmission of three-dimensional scenes over unreliable networks. We propose a novel Unequal Error Protection scheme for the transmission of depth and texture information that distributes a prefixed amount of redundancy among the various elements of the scene description in order to maximize the quality of the rendered views. This target is achieved exploiting also a new model for the estimation of the impact on the rendered views of the various geometry and texture packets which takes into account their relevance in the coded bitstream and the viewpoint required by the user. Experimental results show how the proposed scheme effectively enhances the quality of the rendered images in a typical depth-image-based rendering scenario as packets are progressively decoded/recovered by the receiver.