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[Author] Xiwu SHANG(1hit)

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  • Fast Coding Unit Size Decision in HEVC Intra Coding

    Tao FAN  Guozhong WANG  Xiwu SHANG  

     
    LETTER-Image Processing and Video Processing

      Pubricized:
    2016/04/15
      Vol:
    E99-D No:7
      Page(s):
    1953-1956

    The current high efficiency video coding (HEVC) standard is developed to achieve greatly improved compression performance compared with the previous coding standard H.264/AVC. It adopts a quadtree based picture partition structure to flexibility signal various texture characteristics of images. However, this results in a dramatic increase in computational complexity, which obstructs HEVC in real-time application. To alleviate this problem, we propose a fast coding unit (CU) size decision algorithm in HEVC intra coding based on consideration of the depth level of neighboring CUs, distribution of rate distortion (RD) value and distribution of residual data. Experimental results demonstrate that the proposed algorithm can achieve up to 60% time reduction with negligible RD performance loss.

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