Dejittering in the transport of MPEG-2 and MPEG-4 video

  • Authors:

  • Khaled Shuaib;Tarek Saadawi;Myung Lee;Bert Basch

  • Affiliations:

  • CUNY Graduate School, Department of Electrical Engineering, The City College of New York, New York, NY;CUNY Graduate School, Department of Electrical Engineering, The City College of New York, New York, NY;CUNY Graduate School, Department of Electrical Engineering, The City College of New York, New York, NY;GTE Laboratories, Waltham, MA

  • Venue:
  • Multimedia Systems - Special issue: Multimedia authoring and presentation techniques
  • Year:
  • 2000

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Abstract

When multimedia information is transported over a packet-switched network, the quality of presentation can be degraded due to network delay variation or jitter. This paper presents a dejittering scheme that can be used in the transport of MPEG-4 and MPEG-2 video to absorb any introduced network jitter, thus preserving the presentation quality of transported media streams. The dejittering scheme is based on the statistical approximation of delay variation in the arrival times of video packets carrying encoded clock reference values and a filtering and re-stamping mechanism. In addition, a brief overview of the MPEG-4 system is presented.