Robust distributed video coding for wireless multimedia sensor networks

被引：0
作者：
Hong Yang
Linbo Qing
Xiaohai He
Xianfeng Ou
Xiaojuan Liu
机构：
[1] Sichuan University,College of Electronics and Information Engineering
[2] Chengdu College of University of Electronic Science and Technology of China,undefined
[3] Hunan Institute of Science and Technology,undefined
来源：
Multimedia Tools and Applications | 2018年 / 77卷
关键词：
Wireless multimedia sensor networks; Distributed video coding; Distributed joint source-channel coding; Wyner-ziv coding;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Coding complexity and error-resilience are the two key factors for video streaming in Wireless Multimedia Sensor Networks (WMSNs). Towards this objective, this paper proposes a Robust Distributed Video Coding (RDVC) framework to optimize the quality of video transmission for WMSNs. A new error-resilient Key frame coding scheme is proposed based on the protection of Wyner-Ziv Coding (WZC), in which additional Wyner-Ziv bits play a significant role for better error resilience and better Rate/Distortion (RD) performance. In addition, following the theoretical background of Distributed Joint Source Channel Coding (DJSCC), a novel distributed source channel codec based on Group Puncture Rate Adaptive IRA code (GPRA-IRA) is proposed, upon which the error-resilient Wyner-Ziv codec is designed. These experimental results show that the proposed RDVC scheme outperforms the relevant coding in terms of RD performance, notably by up to 1-3 dB, while achieving a lower encoding complexity.
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收藏
页码：4453 / 4475
页数：22
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