基于编码单元划分的HEVC快速SAO算法

2015 6th IEEE International Conference on Software Engineering and Service Science (ICSESS) Pub Date : 2015-11-30 DOI:10.1109/ICSESS.2015.7339082

Zhang Zhengyong, Cheng Zhiyun, Pu Peng

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引用次数: 8

摘要

采样自适应偏移(SAO)滤波算法是HEVC引入的一个提高视频质量的全新阶段。它位于去块滤波之后，根据重构数据和原始YUV对每个样本添加一个偏移值。为了解决SAO计算复杂度高的问题，提出了一种基于编码单元划分的快速SAO算法。通过块分割深度评估编码单元的纹理复杂度，仅对复杂编码单元进行S AO滤波。仿真结果表明，与HEVC会议软件HM9.0相比，该算法可将编码时间减少约44.55%，达到83.68%，而对PS NR性能的影响可以忽略不计。

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A fast SAO algorithm based on coding unit partition for HEVC

Sample adaptive offset (SAO) filter algorithm is introduced by HEVC as a completely new stage to improve video quality. It is located after deblocking filter, adding an offset value to each sample based on the reconstructed data and the original YUV. In order to solve the problem of high computational complexity of SAO, a fast S AO algorithm based on coding unit partition is proposed in this paper. Evaluating the texture complexity of coding unit by the depth of block partitioning, and only the complex coding unit performed the S AO filter. Simulation results show that, compared with the HEVC conference software HM9.0, the proposed algorithm can reduce about 44.55% encoding time up to 83.68%, while it suffers from negligible on PS NR performance.

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2015 6th IEEE International Conference on Software Engineering and Service Science (ICSESS)

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