Journal of Korea Multimedia Society (한국멀티미디어학회논문지)

Korea Multimedia Society (한국멀티미디어학회)
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Search Range Reduction Algorithm with Motion Vectors of Upper Blocks for HEVC

상위 블록 움직임 벡터를 이용한 HEVC 움직임 예측 탐색 범위 감소 기법

  • Lee, Kyujoong (Dept. of Electronic Eng., School of Engineering, Sun Moon University)
  • Received : 2017.11.03
  • Accepted : 2017.12.28
  • Published : 2018.01.31
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Abstract

In High Efficiency Video Coding (HEVC), integer motion estimation (IME) requires a large amount of computational complexity because HEVC adopts the high flexible and hierarchical coding structures. In order to reduce the computational complexity of IME, this paper proposes the search range reduction algorithm, which takes advantage of motion vectors similarity between different layers. It needs only a few modification for HEVC reference software. Based on the experimental results, the proposed algorithm reduces the processing time of IME by 28.1% on average, whereas its the $Bj{\emptyset}ntegaard$ delta bitrate (BD-BR) increase is 0.15% which is negligible.

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References

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