Fast CU Partitioning Algorithm of HEVC Intra Coding Based on Gradient Structural Similarity

Jing Wenhui; He Xiaohai

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Fast CU Partitioning Algorithm of HEVC Intra Coding Based on Gradient Structural Similarity

更新时间：2023-11-14

- Fast CU Partitioning Algorithm of HEVC Intra Coding Based on Gradient Structural Similarity
- Advanced Engineering Sciences Vol. 47, Issue Z1, Pages: 105-111(2015)
- 作者机构：
  
  四川大学电子信息学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2015，
  
  Published Online：17 November 2014，
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敬文慧,何小海,卿粼波,李向群.“研究生论坛” 基于梯度结构相似度的HEVC帧内编码单元快速划分算法[J].工程科学与技术,2015,47(Z1):105-111.

Jing Wenhui, He Xiaohai. Fast CU Partitioning Algorithm of HEVC Intra Coding Based on Gradient Structural Similarity. [J]. Advanced Engineering Sciences 47(Z1):105-111(2015)
敬文慧,何小海,卿粼波,李向群.“研究生论坛” 基于梯度结构相似度的HEVC帧内编码单元快速划分算法[J].工程科学与技术,2015,47(Z1):105-111. DOI：

Jing Wenhui, He Xiaohai. Fast CU Partitioning Algorithm of HEVC Intra Coding Based on Gradient Structural Similarity. [J]. Advanced Engineering Sciences 47(Z1):105-111(2015) DOI：

摘要

中文摘要: 根据图像相邻块的结构相似度关系，提出一种HEVC帧内预测编码单元快速划分算法。在帧内预测编码中，根据当前编码单元下层的四个子编码单元的平均结构相似程度来确定当前编码单元是否进行更深层次的划分，以达到修剪四叉树，减少计算复杂度的目的，实验结果表明，在码率增加较少和图像质量基本不变的情况下，提出的算法将HEVC帧内预测编码时间平均减少了36.67%-48.50%。

Abstract

Abstract:According to the gradient structural similarity (GSSIM) of adjacent image blocks

a fast CU partitioning algorithm of HEVC intra coding is proposed. In the intra prediction

whether the current coding unit will be partitioned further that will be determined by mean GSSIM of current CU to achieve the purpose of trimming quadtree

reducing computational complexity. The results show that in the case of slight increase of code rate and basically unchanged video quality

the average time of HEVC intra coding is reduced 36.67% to 48.50% by the proposed algorithm.

关键词

梯度SSIMCannyHEVC快速分割

Keywords

gradientSSIMCannyHEVCfast split

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四川大学电子信息学院图像信息研究所

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