计算机工程与应用2016，Vol.52Issue(16)：198-204,7.DOI:10.3778/j.issn.1002-8331.1512-0287
基于结构信息的指数自适应梯度保真项
Exponent adapted gradient fidelity term based on structure information
摘要
Abstract
One of the negative effects of denoising method with second-order nonlinear diffusion equation is the staircase effect, which is difficult to be avoided. The image distortion would be caused more or less though the staircase effect can be reduced by the existed gradient fidelity term. A new exponent adapted gradient fidelity term and a gradient adapted expo-nential function are put forward by improving the exciting methods and the exponential function property in this paper. It is shown that the exponent adapted gradient fidelity term is able to enhance the denoising ability and get better visual results by the experiments.关键词
阶梯效应/梯度信息/非线性扩散方程/指数函数/图像去噪Key words
staircase effect/gradient information/nonlinear diffusion equation/exponent function/image denoising分类
信息技术与安全科学引用本文复制引用
王译禾,陈允杰,张建伟..基于结构信息的指数自适应梯度保真项[J].计算机工程与应用,2016,52(16):198-204,7.基金项目
国家自然科学基金（No.61173072，No.41174164）；江苏省自然科学基金（No.BY2014007-04）。 （）
