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A Streaming Implementation of Transform and Quantization in H.264

  • Haiyan Li
  • Chunyuan Zhang
  • Li Li
  • Ming Pang
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4208)

Abstract

The H.264 video coding standard uses a 4*4 multiply-free integer transform, minimizing computational complexity. The emerging programmable stream architecture provides a powerful mechanism to achieve high performance in media processing and signal processing. This paper analyzes the algorithm characteristics of transform and quantization in H.264 and presents a streaming implementation of transform and quantization on Imagine stream processor. We evaluate our implementation on a cycle-accurate simulator of Imagine and demonstrate stream processing efficiency by comparing its performance against other implementations. Experimental results show that our streaming implementation deals with transform and quantization of a 4*4 block in 6.875ns. The coding efficiency can satisfy the real-time requirement of current video applications.

Keywords

Input Stream Output Stream Video Code Standard Computational Kernel Quantization Formula 
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 2006

Authors and Affiliations

  • Haiyan Li
    • 1
  • Chunyuan Zhang
    • 1
  • Li Li
    • 1
  • Ming Pang
    • 1
  1. 1.School of Computer ScienceNational University of Defense TechnologyChangsha, HunanP. R. China

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