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A Model-Based Analysis of Scalable Multiple Description Coding Host Publication: IEEE International Conference on Digital Signal Processing, DSP 2011 Authors: S. Mahmood Satti, N. Deligiannis, A. Munteanu, P. Schelkens and J. Cornelis UsePubPlace: Corfu, Greece Publisher: IEEE Signal Processing Society Publication Date: Jul. 2011 ISBN: 978-1-4577-0272-3
Abstract: This paper proposes a novel Rate-Distortion (R-D) model
for a generic Embedded Multiple Description Scalar
Quantizer (EMDSQ). The proposed model is experimentally
validated for several quantizer instantiations, showing
notable accuracy. Driven by the proposed model, a detailed
theoretical analysis of a general EMDSQ-based Multiple
Description Coding (MDC) system is carried out. In this
context, an optimized packet transmission strategy for a
scalable MDC system is theoretically investigated. The
analysis reveals important insights into the optimal overall
redundancy and average Signal-to-Noise-Ratio (SNR)
variations of the system. Our analysis, being independent of
the quantizer realization, allows for drawing valuable
conclusions on the theoretically achievable performance of
EMDSQ-based MDC systems.
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