A complexity scalable decoder in an AVS video codec

ABSTRACT

The control of energy consumption in mobile devices is very important and is being paid more and more attentions to. An effective way to reduce the energy consumption of video decoding is to reduce the computational complexity of the video decoder. This paper aims at the tradeoff between complexity and video quality, and proposes a complexity scalable AVS video decoder. AVS is the recent video coding standard developed by the Audio and Video Coding Standard Workgroup of China, which has similar performance with H.264/AVC but a more succinct technical plan. With little information of the characteristics of video sequences added to the bitstream by the encoder, the decoder provides complexity scalable output. Given a percentage K, the decoder can accurately reduce K% computational complexity with slight video quality degradation. Our experimental studies show that, for typical video, using the complexity scalable technology, the quality of video sequences remains acceptable.

REFERENCES

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INDEX TERMS

Primary Classification:
  H. Information Systems
  H.5 INFORMATION INTERFACES AND PRESENTATION (I.7)
      H.5.1 Multimedia Information Systems

General Terms:
Algorithms

Keywords:
AVS, complexity scalable, decoder, encoder, video