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Fast Intra Prediction Mode Decision for HEVC

HEVC의 고속 화면내 예측 모드 결정 기법

  • 김동현 (한국항공대학교 항공전자 및 정보통신공학부) ;
  • 김재곤 (한국항공대학교 항공전자 및 정보통신공학부)
  • Received : 2014.05.12
  • Accepted : 2014.09.15
  • Published : 2014.09.28

Abstract

Intra prediction in HEVC is also significantly improved from H.264/AVC with the increased prediction modes up to 35 that results in increase of the complexity cost. Hence, a fast intra mode decision algorithm is required for real-time applications. A fast intra mode decision is proposed in this paper for further complexity reduction in addition to the RMD (Rough Mode Decision) that has been adopted into the HEVC reference software, referred to as HM, for fast intra prediction. The proposed method reduces the complexity of intra mode decision by limiting the number of search modes in both steps of RMD and the final mode decision. Experimental results show that the proposed method provide about 13.2% encoding time reduction with 1.0% BD-rate increase on average over test sequences in HM 12.0.

Acknowledgement

Supported by : 한국연구재단

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