CU encoding depth prediction, early CU splitting termination and fast mode decision for fast HEVC intra-coding

作者:

Highlights:

• Inter-picture correlation is examined and utilized for fast HEVC intra-encoding.

• CU depth and RD cost of collocated CTU are used to speed up the HEVC intra-coding.

• CU coding depth prediction reduces coding time greatly with very small quality loss

• BD rate increase of only 0.6% with 57% of encoding time savings can be achieved.

• BD rate and encoding time savings can be controlled with single parameter.

摘要

•Inter-picture correlation is examined and utilized for fast HEVC intra-encoding.•CU depth and RD cost of collocated CTU are used to speed up the HEVC intra-coding.•CU coding depth prediction reduces coding time greatly with very small quality loss•BD rate increase of only 0.6% with 57% of encoding time savings can be achieved.•BD rate and encoding time savings can be controlled with single parameter.

论文关键词:HEVC,Fast intra-coding,CU encoding search depth prediction,Early CU splitting termination

论文评审过程:Received 6 July 2015, Revised 24 December 2015, Accepted 26 December 2015, Available online 29 January 2016, Version of Record 5 February 2016.

论文官网地址:https://doi.org/10.1016/j.image.2015.12.006