期刊文献+

Low-Complexity Error-Control Methods for Scalable Video Streaming

Low-Complexity Error-Control Methods for Scalable Video Streaming
下载PDF
导出
摘要 In this paper, low-complexity error-resilience and error-concealment methods for the scalable video coding (SVC) extension of H.264/AVC are described. At the encoder, multiple-description coding (MDC) is used as error-resilient coding. Balanced scalable multiple descriptions are generated by mixing the pre-encoded scalable bit streams. Each description is wholly decodable using a standard SVC decoder. A preprocessor can be placed before an SVC decoder to extract the packets from the highest-quality bit stream. At the decoder, error concealment involves using a lightweight decoder preprocessor to generate a valid bit stream from the available network abstraction layer (NAL) units when medium-grain scalability (MGS) layers are used. Modifications are made to the NAL unit header or slice header if some NAL units of MGS layers are lost. The number of additional packets that a decoder discards as a result of a packet loss is minimized. The proposed error-resilience and error-concealment methods require little computation, which makes them suitable for real-time video streaming. Experiment results show that the proposed methods significantly reduce quality degradation caused by packet loss. In this paper, low-complexity error-resilience and error-concealment methods for the scalable video coding (SVC) extension of H.264/AVC are described. At the encoder, multiple-description coding (MDC) is used as error-resilient coding. Balanced scalable multiple descriptions are generated by mixing the pre-encoded scalable bit streams. Each description is wholly decodable using a standard SVC decoder. A preprocessor can be placed before an SVC decoder to extract the packets from the highest-quality bit stream. At the decoder, error concealment involves using a lightweight decoder preprocessor to generate a valid bit stream from the available network abstraction layer (NAL) units when medium-grain scalability (MGS) layers are used. Modifications are made to the NAL unit header or slice header if some NAL units of MGS layers are lost. The number of additional packets that a decoder discards as a result of a packet loss is minimized. The proposed error-resilience and error-concealment methods require little computation, which makes them suitable for real-time video streaming. Experiment results show that the proposed methods significantly reduce quality degradation caused by packet loss.
作者 Jrn Ostermann
出处 《ZTE Communications》 2012年第2期49-56,共8页 中兴通讯技术(英文版)
关键词 error resilience error concealment SVC MDC error resilience error concealment SVC MDC
  • 相关文献

参考文献23

  • 1Y. Guo,Y. Chen,Y. K. Wang. Error resilient coding and error concealment in scalable video coding[J].IEEE Trans on Circ Syst:for Video Tech,2009,(06):781-795.
  • 2V.A. Vaishampayan. Design of multiple description scalar quantizers[J].IEEE Transactions on Information Theory,1993,(03):821-634.
  • 3Y. Wang, MT,Orchard, VA,Vaishampayan, A.R. Reibman. Multiple description coding using pairwise correlating transforms[J].IEEE Transactions on Image Processing,2001,(03):351-366.
  • 4C.S. Kim,S.U. Lee. Multiple description motion coding algorithm for robust video transmission[A].Geneve,Switzerland,2000.717-720.
  • 5J. G. Apostolopoulos. Reliable video communication over Iossy packet networks using multiple state encoding and path diversity[J].Visual Commun and Image Processing (VCIP),2001.392-409.
  • 6R. Puri,K. Ramchandran,K.W. Lee,V.Bharghavan. Forward error correction (FEC) codes based multiple description coding for internet video streaming and multicast[J].SignalProcesslhg:Image Communicatlbn,2001,(08):745-762.
  • 7H. Schwarz,D. Marpe,T. Wiegand. Overview of the scalable video coding extension of the H.264/AVC standard[J].IEEE Trans Circ SysL for Video Tech,2007,(09):1103-1120.
  • 8Z.J. Zhao;J. Qstermann.Video Streaming Using Standard-Compatible Scalable Multiple Description Coding Based on SVC[A]香港,20101293-1296.
  • 9Z.J. Zhao,J. Ostermann. Error Concealment in the Network Abstraction Layer for Medium Grain Scalability of SVC[A].2010.77442P-7744P-8.
  • 10H. Mansour,P. Nasiopoulus,V. Leung. A flexible multi-rate allocation scheme for balanced multiple description coding applications[A].Greece,2005.1-4.

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部