전기학회논문지 (The Transactions of The Korean Institute of Electrical Engineers)

  • 제56권10호
  • /
  • Pages.1868-1871
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  • 2007
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  • 1975-8359(pISSN)
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  • 2287-4364(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

최적 모드 예측을 이용한 고속 모드 결정 알고리즘

Optimal Mode Prediction-based Fast Mode Decision Algorithm for H.264-based Mobile Devices

  • 발행 : 2007.10.01
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초록

This paper proposes a novel scheme to significantly reduce mode decision time by predicting optimal mode candidates. Unlike previous fast mode decision algorithms computing RDcost in a pre-defined mode order, the proposed scheme predicts optimal mode candidates and calculates their RDcosts first, increasing the possibility to satisfy early-exit conditions sooner, resulting in fast mode decision. This H.264 mode decision time reduction enables small computing power mobile devices to handle H.264 encoding effectively. Extensive simulations show that, when compared with JM10.2, AMD and LCIMS, the proposed scheme boosts H.264 encoding speed by up to 575% with a reasonable image quality degradation.

키워드

참고문헌

  1. Joint Video Team of ITU-T and ISO/IEC JTC 1, 'Draft ITU - T Recommendation and Final Draft International Standard of Joint Video Specification (ITU-T Rec. H.264 I ISO/IEC 14496-10 AVC),' document JVT-G050r1, May 2003
  2. Sullivan, G.,Wiegand, T., and Lim, K. P. 'Joint model reference encoding methods and decoding concealment methods', JVT of MPEG and VCEG, Doc. JVT- J049, December 2003
  3. Feng Pan, Xiao Lin, Susanto Rahardja, Keng Pang Lim, Z. G. Li, Dajun Wu, and Si Wu, 'Fast Mode Decision Algorithm for Intraprediction in H.264/ AVC Video Coding', IEEE TCSVT, July 2005, Vol.15, No.7
  4. Y-H, Kim, J.-W. Yoo,S.-W. Lee, J. Shin, J. Park and H,-K. Jung 'Adaptive mode decision for H.264 encoder', Electronics letters, Sept 2004, Vol.40, No.19
  5. Seydou-Nourou, Ba, Altunbasak, Y., Ates, H. 'Low Complexity Inter-Mode Selection for H.264', Oct. 2006, IEEE
  6. Wiegand, T., Sullivan, G.J., Bjntegaard, G., Luthra, A., 'Overview of the H.264/ AVC Video Coding Standard', CSVT, IEEE, July 2003 Volume: 13, No.7