Error Resilient Transcoding for Wireless Video Transmission

2009 International Conference on Wireless Networks and Information Systems Pub Date : 2009-12-28 DOI:10.1109/WNIS.2009.39

Xinchen Zhang, M. Huang

{"title":"Error Resilient Transcoding for Wireless Video Transmission","authors":"Xinchen Zhang, M. Huang","doi":"10.1109/WNIS.2009.39","DOIUrl":null,"url":null,"abstract":"Video transmission through wireless channels is still a challenging problem on the limitations in bandwidth and the presence of channel errors. Video transcoding, due to its high practical values for a wide range of networked video applications, has become an active research topic. It is typically used to reduce the rate and change the format of the originally encoded video source to match network conditions and terminal capabilities. Error resilient video transcoding can insert error resilient tools in the compressed video to enhance error resilience of the video over wireless channels by increasing bit rate. In this paper, firstly we outline the technical issues and research results related to video transcoding, Then we discuss techniques for reducing the complexity and improving the video quality, such as intra marcoblock refresh, synchronization marker insertion, error concealment, joint optimization, redundant slices, unequal error protection, and so on. To achieve good resilient performance, a experimental video transcoding is designed and established. The results show its improved video quality at the reducing the complexity and the cost of bit rate.","PeriodicalId":280001,"journal":{"name":"2009 International Conference on Wireless Networks and Information Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2009-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2009 International Conference on Wireless Networks and Information Systems","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/WNIS.2009.39","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 3

Abstract

Video transmission through wireless channels is still a challenging problem on the limitations in bandwidth and the presence of channel errors. Video transcoding, due to its high practical values for a wide range of networked video applications, has become an active research topic. It is typically used to reduce the rate and change the format of the originally encoded video source to match network conditions and terminal capabilities. Error resilient video transcoding can insert error resilient tools in the compressed video to enhance error resilience of the video over wireless channels by increasing bit rate. In this paper, firstly we outline the technical issues and research results related to video transcoding, Then we discuss techniques for reducing the complexity and improving the video quality, such as intra marcoblock refresh, synchronization marker insertion, error concealment, joint optimization, redundant slices, unequal error protection, and so on. To achieve good resilient performance, a experimental video transcoding is designed and established. The results show its improved video quality at the reducing the complexity and the cost of bit rate.

查看原文本刊更多论文

无线视频传输的容错转码

由于带宽的限制和信道误差的存在，无线信道的视频传输仍然是一个具有挑战性的问题。视频转码由于具有很高的实用价值，可广泛应用于网络视频，已成为一个活跃的研究课题。它通常用于降低原始编码视频源的速率和改变格式，以匹配网络条件和终端功能。纠错视频转码可以在压缩后的视频中插入纠错工具，通过提高码率来增强无线信道视频的纠错能力。本文首先概述了视频转码的相关技术问题和研究成果，然后讨论了降低复杂性和提高视频质量的技术，如帧内块刷新、同步标记插入、错误隐藏、联合优化、冗余切片、不等错误保护等。为了获得良好的弹性性能，设计并建立了实验视频转码系统。结果表明，该方法在降低复杂度和码率成本的同时，提高了视频质量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

2009 International Conference on Wireless Networks and Information Systems

自引率

0.00%

发文量