A well-balanced flow equation for noise removal and edge detection

被引：70

作者：

Barcelos, CAZ

Boaventura, M

Silva, EC

机构：

[1] Univ Fed Uberlandia, FACOM Fed, BR-38400 Uberlandia, MG, Brazil

[2] UNESP, DCCE, IBILCE, Sao Jose Do Rio Preto, SP, Brazil

来源：

IEEE TRANSACTIONS ON IMAGE PROCESSING | 2003年 / 12卷 / 07期

关键词：

diffusion equation; edge detection; image processing; noise removal;

D O I：

10.1109/TIP.2003.814242

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

In this paper, an anisotropic nonlinear diffusion equation for image restoration is presented. The model has two terms: the diffusion and the forcing term. The balance between these terms is made in a selective way, in which boundary points and interior points of the objects that make up the image are treated differently. The optimal smoothing time concept, which allows for finding the ideal stop time for the evolution of the partial differential equation is also proposed. Numerical results show the proposed model's high performance.

引用

页码：751 / 763

页数：13

共 20 条

[1] ALTERNATIVE THERAPY IN SEVERE ASTHMA [J].