کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4629769 1340586 2013 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nonlinear multigrid method for solving the LLT model
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات ریاضیات کاربردی
پیش نمایش صفحه اول مقاله
Nonlinear multigrid method for solving the LLT model
چکیده انگلیسی
Our goal in this paper is to study a nonlinear multigrid method for solving the LLT model. In order to improve the convergence rate of the proposed multigrid method, an improved dual iteration is proposed as its smoother. Furthermore, we give the local Fourier analysis (LFAs) of the Chambolle's dual iterations and a modified smoother for solving the LLT model, respectively. Numerical results illustrate the efficiency of the proposed method and indicate that such a multigrid method is more suitable to deal with large-sized images.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Mathematics and Computation - Volume 219, Issue 10, 15 January 2013, Pages 4964-4976
نویسندگان
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