首页> 外文会议>Pacific Rim International Conference Dependable Computing >Reliable Video Transmission Techniques for Wireless MPEG-4 Streaming Systems
【24h】

Reliable Video Transmission Techniques for Wireless MPEG-4 Streaming Systems

机译:无线MPEG-4流系统的可靠视频传输技术

获取原文

摘要

Multimedia streaming over wireless network faces the problem of low-bandwidth data transmission in an error prone environment. Furthermore, due to the frame dependency exploited by the video coding schemes, packet loss could degrade the perceptual quality of the media streams. In this paper, we design and implement a group-of-pictures (GOP) based video packet interleaving technique to reduce the impact of bursty packet losses. At the server side of our system, the packets of B or P frames are interleaved into the packets of a single I frame. At the client side, the de-interleaving method is developed based on the RTP [1] timestamp of RTP header. We also apply the technique to the MPEG-4 [2] video codec in the streaming system and integrate its error resilient tools - video packet, data partition, and RVLC, to increase the performance of GOP based video packet interleaving technique. From the experiment results, we show that our technique improves the perceptual quality better than the classic scheme does.
机译:无线网络上的多媒体流在易于易发环境中的低带宽数据传输的问题面临的问题。此外,由于视频编码方案利用的帧依赖性,分组丢失可能降低媒体流的感知质量。在本文中,我们设计并实现了一种基于视频分组交织技术的群体(GOP),以减少突发分组损耗的影响。在我们的系统的服务器端,B或P帧的数据包被交错到单个I帧的数据包中。在客户端,基于RTP报头的RTP [1]时间戳开发了去交织方法。我们还将技术应用于流系统中的MPEG-4 [2]视频编解码器,并集成了其错误弹性工具 - 视频包,数据分区和RVLC,以提高基于GOP的视频分组交织技术的性能。从实验结果来看,我们表明我们的技术提高了比经典方案更好的感知质量。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号