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Content adaptive quantization parameter cascading for random-access structure in HEVC

  • Kaifang Yang
  • , Shuai Wan
  • , Yanchao Gong
  • , Yan Feng
  • Shaanxi Normal University
  • Northwestern Polytechnical University Xian
  • Xi'an Institute of Posts and Telecommunications

科研成果: 书/报告/会议事项章节 › 会议稿件 › 同行评审

4 引用 (Scopus)

摘要

In high-efficiency coding (HEVC), the random-access structure (RAS) is employed due to its high coding efficiency and 'random-access' performance. Pictures in RAS are assigned to different temporal layers. And how to select the QP for each temporal layer in quantization parameter cascading (QPC) technique is critical for improving the coding efficiency of RAS. In order to further improve the coding efficiency of RAS, a QPC technique considering the video content characteristics (denoted as VC-QPC for short) is proposed. In VC-QPC, motion and texture complexities of a video are used for predicting the optimal quantization parameter values of temporal layers. Compared with the method in the test model of HEVC, i.e., HM14.0, the BD-rate of proposed VC-QPC is -5.60% for RAS.

源语言英语
主期刊名2017 IEEE International Conference on Image Processing, ICIP 2017 - Proceedings
出版商IEEE Computer Society
页2498-2502
页数5
ISBN(电子版)9781509021758
DOI
出版状态已出版 - 2 7月 2017
活动24th IEEE International Conference on Image Processing, ICIP 2017 - Beijing, 中国
期限: 17 9月 2017 → 20 9月 2017

丛书

姓名Proceedings - International Conference on Image Processing, ICIP
卷2017-September
ISSN(印刷版)1522-4880

会议

会议24th IEEE International Conference on Image Processing, ICIP 2017
国家/地区中国
市Beijing
时期17/09/17 → 20/09/17

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