Improvement of a nonlinear image interpolation method based on heat diffusion equation

被引：5

作者：

Chen, XQ ^{[1
]}

Zhang, J ^{[1
]}

Wu, LN ^{[1
]}

机构：

[1] Southeast Univ, Dept Radio Engn, Nanjing 210096, Jiangsu, Peoples R China

来源：

2003 INTERNATIONAL CONFERENCE ON MACHINE LEARNING AND CYBERNETICS, VOLS 1-5, PROCEEDINGS | 2003年

关键词：

heat diffusion equation; image interpolation; smoothness;

D O I：

10.1109/ICMLC.2003.1260062

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

Recently many nonlinear interpolation schemes for images have produced images of higher resolution than those produced by linear techniques. But smoothness still exists, especially on edges. The smoothing process can be described as a traditional heat diffusion equation. In this paper, this equation is combined with an improved edge-directed interpolation method to improve visual quality in terms of sharpened edges. Experimental results indicate that the combination of the two methods is capable of achieving images with noticeably sharper edges.

引用

页码：2911 / 2914

页数：4