A Survey of Error-Concealment Schemes for Real-Time Audio and Video Transmissions over the Internet*

  • Authors:
  • Benjamin W. Wah;Xiao Su;Dong Lin

  • Affiliations:
  • -;-;-

  • Venue:
  • MSE '00 Proceedings of the 2000 International Conference on Microelectronic Systems Education
  • Year:
  • 2000

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Abstract

Real-time audio and video data streamed over unreliable IP networks, such as the Internet, may encounter losses due to dropped packets or late arrivals. This paper reviewserror-concealment schemes developed for streaming real-time audio and video data over the Internet. Based on their interactions with (video or audio) source coders, we classifyexisting techniques into source coder-independent schemes that treat underlying source coders as black boxes, and source coder-dependent schemes that exploit coder-specificcharacteristics to perform reconstruction. Last, we identify possible future research directions.