.png){kind=icon}
返回
Fast Bayesian decision based block partitioning algorithm for HEVC
.png){kind=icon}
PRE
AI
DOI：10.1007/s11042-018-6468-5.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
The newly published High Efficiency Video Coding (HEVC) Standard has greatly enhanced the coding performance in comparison to its predecessors. However, HEVC also has high computational complexity, which limits its application. In this paper, we propose a fast Bayesian Decision based Block Partitioning (BDBP) algorithm for HEVC encoder. Firstly, the scene change detection based on average grey difference is used to divide the video sequence into the online learning phase and the fast partitioning phase. Secondly, in the online learning phase, the statistical parameters are extracted from coding units (CUs) in every depth to establish the Gaussian mixture models which are resolved by expectation maximization algorithm; in the fast partitioning phase, the conditional probabilities for CU to decide partitioning and non-partitioning are calculated. Finally, the minimum risk Bayesian decision rule is used to choose the decision with smaller risk, and the decision is regarded as the judgment of the current CU. Experimental results show that the proposed algorithm reduces the computational complexity of HM13.0 to 54.1% in encoding time with 0.92% increase in the BD-Rate and 0.05dB decrease in the BD-PSNR. Moreover, the proposed algorithm also demonstrates better performance over other state-of-the-art work.
Keyword:
Video coding
High efficiency video coding (HEVC)
Block partitioning
Bayesian decision
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
3
论文数:
2.0W
被引数:
3.2W
机构
引用论文
.png){kind=icon}
分享收藏
Fast CU size decision and mode decision algorithm for intra prediction in HEVCHEVC帧内预测的快速CU尺寸决策和模式决策算法
PREAI
分享收藏Why gold nanoparticles are more precious than pretty gold: Noble metal surface plasmon resonance and its enhancement of the radiative and nonradiative properties of nanocrystals of different shapes为什么金纳米粒子比漂亮的金更珍贵: 贵金属表面等离子体共振及其对不同形状纳米晶体的辐射和非辐射特性的增强
PREAI
分享收藏
查看更多内容