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  • Research Article
  • Open Access

Priority-Based Heading One Detector in H.264/AVC Decoding

EURASIP Journal on Embedded Systems20072007:060834

  • Received: 11 July 2006
  • Accepted: 31 January 2007
  • Published:


A novel priority-based heading one detector for Exp-Golomb/CAVLC decoding of H.264/AVC is presented. It exploits the statistical distribution of input encoded codewords and adopts a nonuniform partition decoding scheme for the detector. Compared with a conventional design without power optimization, the power consumption can be reduced by more than 3 times while the performance is maintained and the design hardware cost does not increase. The proposed detector has successfully been verified and implemented in a complete H.264/AVC decoding system.


  • Power Consumption
  • Control Structure
  • Power Optimization
  • Electronic Circuit
  • Design Hardware

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Authors’ Affiliations

Department of Electronic Engineering, The Chinese University of Hong Kong, Shatin, Hong Kong


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© Ke Xu et al. 2007

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.