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Volume 27 Issue 1
Jan.  2002
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SHEN Weiming, ZHU Li, LI Guokuan. Framework Design on Video Coding System for Error-prone Heterogenous Network[J]. Geomatics and Information Science of Wuhan University, 2002, 27(1): 23-27.
Citation: SHEN Weiming, ZHU Li, LI Guokuan. Framework Design on Video Coding System for Error-prone Heterogenous Network[J]. Geomatics and Information Science of Wuhan University, 2002, 27(1): 23-27.

Framework Design on Video Coding System for Error-prone Heterogenous Network

  • Received Date: 2001-11-23
  • Publish Date: 2002-01-05
  • This paper describes the complete procedure of framework design on a video coding system for error-prone heterogenous network environment.First of all,the requirements of the system are analyzed and the targets of the system design are emphasized on three categories:①improving video performance under the constraints of network bandwidth and computational complexity,②providing error robust mechanism when packet loss occur,③adding capability of layered video coding for heterogenous network transmission.Then,ITU-T H.263+recommendation is introduced,especially about its 16 optional enhanced coding modes:feature,effect and benefit.The system design on mode selection is somewhat a trade-off.Five enhanced coding modes are preferred for our purpose:advanced INTRA coding mode,deblocking filter mode,modified quantization mode,slice structured mode and temporal,SNR and spatial scalability mode.At last,some useful and important system elements beyond H.263+recommendation are discussed:RTP packetization,error concealment and error tracking.Application shows that all the targets are easily touched by the implementation based on this design.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Framework Design on Video Coding System for Error-prone Heterogenous Network

Abstract: This paper describes the complete procedure of framework design on a video coding system for error-prone heterogenous network environment.First of all,the requirements of the system are analyzed and the targets of the system design are emphasized on three categories:①improving video performance under the constraints of network bandwidth and computational complexity,②providing error robust mechanism when packet loss occur,③adding capability of layered video coding for heterogenous network transmission.Then,ITU-T H.263+recommendation is introduced,especially about its 16 optional enhanced coding modes:feature,effect and benefit.The system design on mode selection is somewhat a trade-off.Five enhanced coding modes are preferred for our purpose:advanced INTRA coding mode,deblocking filter mode,modified quantization mode,slice structured mode and temporal,SNR and spatial scalability mode.At last,some useful and important system elements beyond H.263+recommendation are discussed:RTP packetization,error concealment and error tracking.Application shows that all the targets are easily touched by the implementation based on this design.

SHEN Weiming, ZHU Li, LI Guokuan. Framework Design on Video Coding System for Error-prone Heterogenous Network[J]. Geomatics and Information Science of Wuhan University, 2002, 27(1): 23-27.
Citation: SHEN Weiming, ZHU Li, LI Guokuan. Framework Design on Video Coding System for Error-prone Heterogenous Network[J]. Geomatics and Information Science of Wuhan University, 2002, 27(1): 23-27.

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