An improved video denoising algorithm based on 3D block matching

被引：0

作者：

Xiao, Jinsheng ^{[1
,2
]}

Jiang, Hong ^{[1
]}

Peng, Hong ^{[1
]}

Li, Wenhao ^{[1
]}

Yue, Xianchang ^{[1
]}

机构：

[1] School of Electronic Info., Wuhan Univ., Wuhan 430072, China

[2] State Key Lab. of Info. Eng. in Surveying, Mapping and Remote Sencing, Wuhan Univ., Wuhan 430079, China

来源：

Sichuan Daxue Xuebao (Gongcheng Kexue Ban)/Journal of Sichuan University (Engineering Science Edition) | 2014年 / 46卷 / 04期

关键词：

Computational efficiency - Image coding - Motion compensation - Three dimensional computer graphics - Video signal processing;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The video block-matching and 3-D filtering (VBM3D) algorithm was improved, which had block effect and low-efficiency. A continuous derivative threshold method was introduced during the shrinkage of the coefficient in transform domain, replacing the hard threshold method. A fast method based on the integral images was used to calculate the distance between image blocks in intra frames matching. An improved searching method of predictive-search block-matching for inter frames matching was presented. The computation was reduced and the efficiency of the algorithm was improved on the premise of finding similar blocks. The experimental results and the theoretical analysis demonstrated that the improved method achieved excellent denoising performance. The result of block effect in the original VBM3D algorithm was improved and the computation complexity of improved algorithm was reduced greatly.

引用

页码：81 / 86