A fast inter residual quad-tree construction method in HEVC

Shen Chuan Tai, Chia Ying Chang, Bo Jhih Chen, Zhi Yu Yang

研究成果: Conference contribution

摘要

High Efficiency Video Coding(HEVC) is an ongoing video coding standard. Compared to H.264, it adopts quad-tree structure to decide the encoding efficiency by computing the rate-distortion(R-D) cost function recursively. The transform unit (TU) is the basic unit used for the transform and quantization processes in HEVC and the ranges size from 4×4 to 32×32. In addition, a large size TU is always chosen, e.g., 32×32, of the RQT if a residual block has a little prediction error, especially the homogeneous-area CUs are encoded. Based on the observations, the proposed method uses two stages to skip unnecessary computations on the residual quad-tree (RQT). First, to decide whether DCT/Q processes can be omitted or not. And then is used to early terminate the TU split process. Experiment results show that the proposed method is capable of reducing a large amount of time of inter prediction RQT decision on average 50% and retaining the coding performance by comparing the original HEVC encoder.

原文English
主出版物標題Digest of Technical Papers - IEEE International Conference on Consumer Electronics
發行者Institute of Electrical and Electronics Engineers Inc.
頁面111-112
頁數2
ISBN(電子)9781479938308
DOIs
出版狀態Published - 2014 九月 18
事件1st IEEE International Conference on Consumer Electronics - Taiwan, ICCE-TW 2014 - Taipei, Taiwan
持續時間: 2014 五月 262014 五月 28

出版系列

名字Digest of Technical Papers - IEEE International Conference on Consumer Electronics
ISSN(列印)0747-668X

Other

Other1st IEEE International Conference on Consumer Electronics - Taiwan, ICCE-TW 2014
國家/地區Taiwan
城市Taipei
期間14-05-2614-05-28

All Science Journal Classification (ASJC) codes

  • 工業與製造工程
  • 電氣與電子工程

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