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An adaptive algorithm for TV-based model of three norms L-q(q=1/2, 1, 2) in image restoration 期刊论文
APPLIED MATHEMATICS AND COMPUTATION, 2018, 卷号: 329, 页码: 251-265
作者:  Chang, Qianshun;  Che, Zengyan
收藏  |  浏览/下载:124/0  |  提交时间:2018/07/30
Image restoration  Split Bregman method  Alternating minimization method  L-1/2 norm  L-2 norm  
Fourth-Order Compact Difference Schemes for 1D Nonlinear Kuramoto-Tsuzuki Equation 期刊论文
NUMERICAL METHODS FOR PARTIAL DIFFERENTIAL EQUATIONS, 2015, 卷号: 31, 期号: 6, 页码: 2080-2109
作者:  Hu, Xiuling;  Chen, Shanzhen;  Chang, Qianshun
收藏  |  浏览/下载:114/0  |  提交时间:2018/07/30
compact difference scheme  convergence  Kuramoto-Tsuzuki equation  Neumann boundary conditions  priori estimates  
A refined convergence analysis of multigrid algorithms for elliptic equations 期刊论文
ANALYSIS AND APPLICATIONS, 2015, 卷号: 13, 期号: 3, 页码: 255-290
作者:  Chang, Qianshun;  Jia, Rong-Qing
收藏  |  浏览/下载:103/0  |  提交时间:2018/07/30
Multigrid algorithms  elliptic equations  multilevel approximation  approximation conditions  smoothing conditions  finite element approximation  
thealgorithmsaboutfastnonlocalmeansbasedimagedenoising 期刊论文
actamathematicaeapplicataesinica, 2012, 卷号: 028, 期号: 002, 页码: 247
作者:  Xing Lili;  Chang Qianshun;  Qiao Tiantian
收藏  |  浏览/下载:135/0  |  提交时间:2020/01/10
NOTE ON AN OPEN PROBLEM OF HIGHER ORDER NONLINEAR EVOLUTION EQUATIONS 期刊论文
ACTA MATHEMATICA SCIENTIA, 2012, 卷号: 32, 期号: 6, 页码: 2369-2376
作者:  Kim Tujin;  Chang Qianshun;  Jing Xu
收藏  |  浏览/下载:84/0  |  提交时间:2021/01/14
nonlinear evolution equation  Cauchy problem  higher order  
The Algorithms about Fast Non-local Means Based Image Denoising 期刊论文
应用数学学报:英文版, 2012, 卷号: 28.0, 期号: 002, 页码: 247-254
作者:  Xing Lili;  Chang Qianshun;  Qiao Tiantian
收藏  |  浏览/下载:95/0  |  提交时间:2021/01/14
图像去噪  快速算法  计算成本  图像处理  降噪效果  成本费用  数值实验  
Difference Methods for Computing the Ginzburg-Landau Equation in Two Dimensions 期刊论文
NUMERICAL METHODS FOR PARTIAL DIFFERENTIAL EQUATIONS, 2011, 卷号: 27, 期号: 3, 页码: 507-528
作者:  Xu, Qiubin;  Chang, Qianshun
收藏  |  浏览/下载:119/0  |  提交时间:2018/07/30
Ginzburg-Landau equation  difference scheme  time-splitting scheme  convergence  stability  
Application of splitting scheme and multigrid method for TV-Stokes denoising 期刊论文
SCIENCE CHINA-INFORMATION SCIENCES, 2011, 卷号: 54, 期号: 4, 页码: 745-756
作者:  Chang QianShun;  Tai XueCheng;  Xing Lili
收藏  |  浏览/下载:100/0  |  提交时间:2018/07/30
image denoising  total variation  Stokes equation  algebraic multigrid method  
newtimedependentpretreatmodelsbasedontotalvariationalimagerestoration 期刊论文
actamathematicaeapplicataesinica, 2011, 卷号: 027, 期号: 001, 页码: 129
作者:  Xu Jing;  Chang Qianshun
收藏  |  浏览/下载:98/0  |  提交时间:2020/01/10
newnumericalmethodsforthecouplednonlinearschrodingerequations 期刊论文
actamathematicaeapplicataesinica, 2010, 卷号: 000, 期号: 002, 页码: 205
作者:  Xu Qiubin;  Chang Qianshun
收藏  |  浏览/下载:96/0  |  提交时间:2020/01/10