Optimization of the index assignments for multiple description vector quantizers

被引：24

作者：

Görtz, N ^{[1
]}

Leelapornchai, P ^{[1
]}

机构：

[1] Tech Univ Munich, Inst Commun Engn, D-80290 Munich, Germany

来源：

IEEE TRANSACTIONS ON COMMUNICATIONS | 2003年 / 51卷 / 03期

关键词：

index mappings; index optimization; multiple descriptions; vector quantization;

D O I：

10.1109/TCOMM.2003.809727

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The optimization criterion and a practically feasible new algorithm is stated for the optimization of the index assignments of a multiple-description unconstrained vector quantizer with an arbitrary number of descriptions. In the simulations, the index-optimized multiple-description vector quantizer achieves significant gains in source signal-to-noise ratio over scalar multiple description schemes.

引用

页码：336 / 340

页数：5

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