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Improved Context-Based Adaptive Binary Arithmetic Coding in MPEG-4 AVC/H.264 Video Codec

  • Damian Karwowski
  • Marek Domański
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6375)

Abstract

An improved Context-based Adaptive Binary Arithmetic Coding (CABAC) is presented for application in high definition video coding. In comparison to standard CABAC, the improved CABAC works with proposed more sophisticated mechanism of data statistics estimation that is based on the Context-Tree Weighting (CTW) method. Compression performance of the improved CABAC was tested and confronted with efficiency of the state-of-the-art CABAC algorithm used in MPEG-4 AVC. Obtained results revealed that 1.5%-8% coding efficiency gain is possible after application of the improved CABAC in MPEG-4 AVC High Profile.

Keywords

Video Code Quantization Parameter Video Compression Compression Performance Video Codec 
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 Berlin Heidelberg 2010

Authors and Affiliations

  • Damian Karwowski
    • 1
  • Marek Domański
    • 1
  1. 1.Poznań University of TechnologyPoznańPoland

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