Video Compression

  • Lingfen Sun
  • Is-Haka Mkwawa
  • Emmanuel Jammeh
  • Emmanuel Ifeachor
Part of the Computer Communications and Networks book series (CCN)


Compression in VoIP is the technical term which refers to the reduction of the size and bandwidth requirement of voice and video data. In VoIP, ensuring acceptable voice and video quality is critical for acceptance and success. However, quality is critically dependent on the compression method and on the sensitivity of the compressed bitstream to transmission impairments. An understanding of standard voice and video compression techniques, encoders and decoders (codecs) is necessary in order to design robust VoIP applications that ensure reliable and acceptable quality of delivery. This understanding of the techniques and issues with compression is important to ensure that appropriate codecs are selected and configured properly. This chapter firstly introduces the need for media compression and then explains some basic concepts for video compression, such as video signal representation, resolution, frame rate, lossless and lossy video compression. This is followed by video compression techniques including predictive coding, quantisation, transform coding and interframe coding. The chapter finally describes the standards in video compression, e.g. H.120, H.261, MPEG1&2, H.263, MPEG4, H.264 and the latest HEVC (High Efficiency Video Coding) standard.


Discrete Cosine Transform Highly Efficiency Video Code Video Compression Discrete Cosine Transform Coefficient Inverse Discrete Cosine Transform 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag London 2013

Authors and Affiliations

  • Lingfen Sun
    • 1
  • Is-Haka Mkwawa
    • 1
  • Emmanuel Jammeh
    • 1
  • Emmanuel Ifeachor
    • 1
  1. 1.School of Computing and MathematicsUniversity of PlymouthPlymouthUK

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