Journal Article Fast Coding Unit Size Decision Based on Probabilistic Graphical Model in High Efficiency Video Coding Inter Prediction

Jiang, Xiantao  ,  Song, Tian  ,  Shi, Wen  ,  Katayama, Takafumi  ,  Shimamoto, Takashi  ,  Wang, Lisheng

E99-D ( 11 )  , pp.2836 - 2839 , 2016-11-01 , The Institute of Electronics, Information and Communication Engineers
In this work, a high efficiency coding unit (CU) size decision algorithm is proposed for high efficiency video coding (HEVC) inter coding. The CU splitting or non-splitting is modeled as a binary classification problem based on probability graphical model (PGM). This method incorporates two sub-methods: CU size termination decision and CU size skip decision. This method focuses on the trade-off between encoding efficiency and encoding complexity, and it has a good performance. Particularly in the high resolution application, simulation results demonstrate that the proposed algorithm can reduce encoding time by 53.62%-57.54%, while the increased BD-rate are only 1.27%-1.65%, compared to the HEVC software model.

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