ETRI Journal

  • 제27권5호
  • /
  • Pages.504-510
  • /
  • 2005
  • /
  • 1225-6463(pISSN)
  • /
  • 2233-7326(eISSN)
한국전자통신연구원 (Electronics and Telecommunications Research Institute)
권호 표지

Low-Power Video Decoding on a Variable Voltage Processor for Mobile Multimedia Applications

  • 투고 : 2005.01.11
  • 발행 : 2005.10.31
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초록

This paper proposes a novel low-power video decoding scheme. In the encoded video bitstream, there is quite a large number of non-coded blocks. When the number of the non-coded blocks in a frame is known at the start of frame decoding, the workload of the video decoding can be estimated. Consequently, the supply voltage of very large-scale integration (VLSI) circuits can be lowered, and the power consumption can be reduced. In the proposed scheme, the encoder counts the number of non-coded blocks and stores this information in the frame header of the bitstream. Simulation results show that the proposed scheme reduces the power consumption to about 1/10 to 1/20.

키워드

참고문헌

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  2. ETRI J. v.25 no.5 Pipelined Macroblock Processing to Reduce Internal Buffer Size of Motion Estimation in Multimedia SoCs Lee, S.
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  12. Proc. Design Automation Conf. Run-Time Voltage Hopping for Low-Power Real-Time Systems Lee, S.;Sakurai, T.
  13. ISO/IEC JTC1/SC29/WG11 14496-2, Coding of Audiovisual Object: Visual
  14. ITU-T Rec. H.264, Advanced Video Coding