A THREE-LAYER ALGORITHM FOR M-CHANNEL MULTIPLE DESCRIPTION IMAGE CODING

被引：0
|
作者：
Samarawickrama, Upul [1 ]
Liang, Jie [1 ]
Tian, Chao [2 ]
机构：
[1] Simon Fraser Univ, Sch Engn Sci, Burnaby, BC V5A 1S6, Canada
[2] AT&T Labs Res, Florham Pk, NJ 07932 USA
来源：
2010 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING | 2010年
基金：
加拿大自然科学与工程研究理事会;
关键词：
Image coding; Image communication; Information theory; Estimation; DESCRIPTION SCALAR QUANTIZERS; DESIGN;
D O I：
10.1109/ICIP.2010.5653388
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：
In this paper, a three-layer scheme is developed for M-channel multiple description image coding. In each description, a subset of the source samples is encoded in the first layer. In the second layer, the remaining subsets are encoded sequentially by predicting from the already encoded subsets. The third layer encoding is designed to refine the reconstruction when only one description is lost, which is the dominant loss scenario in practice. We first derive the closed-form expressions of the expected distortion of the system for 1-D sources when different numbers of descriptions are received. The scheme is then applied to lapped transform based image coding. Simulation results show that the method outperforms some competing schemes.
引用
收藏
页码：1261 / 1264
页数：4
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