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Proceedings Paper

Model-based unbalanced multiple description video transmission using path diversity
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Paper Abstract

Multiple State Video Coding (MSVC) is a Multiple Description Coding Scheme where the video is coded into multiple independently decodable streams, each with its own prediction process and state. The system subject to this work is composed of two subsystems: 1- multiple state encoding/decoding, 2- path diversity transmission system. In [1] we discussed how to optimize the rate allocation of such a system while maximizing the average reconstructed frame PSNR at the decoder and minimizing the PSNR variations between the streams given the total bitrate RT and the balanced (equal loss probabilities) or unbalanced (unequal) loss probabilities p1 and p2 over the two paths. In our current work we establish a theoretical framework to estimate the rate-(decoder) distortion (R-Dd) function and have taken into account the MSVC-structure, the rate allocation, channel impairments and reconstruction strategies respectively. The video sequence is modeld as an AR(1) source and the distortion associated with each reconstructed frame in both threads is a lossy transmission environment is estimated recursively depending on the system parameters.

Paper Details

Date Published: 23 June 2003
PDF: 12 pages
Proc. SPIE 5150, Visual Communications and Image Processing 2003, (23 June 2003); doi: 10.1117/12.503393
Show Author Affiliations
Sila Ekmekci, Technische Univ. Berlin (Germany)
Thomas Sikora, Technische Univ. Berlin (Germany)


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

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