A multigrid for image deblurring with Tikhonov regularization
نویسندگان
چکیده
منابع مشابه
A multigrid for image deblurring with Tikhonov regularization
In the resolution of certain image deblurring problems with given boundary conditions we obtain two-level structured linear systems. In the case of shift-invariant point spread function with Dirichlet (zero) boundary conditions, the blurring matrices are block Toeplitz matrices with Toeplitz blocks. If the periodic boundary conditions are used, then the involved structures become block-circulan...
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ژورنال
عنوان ژورنال: Numerical Linear Algebra with Applications
سال: 2005
ISSN: 1070-5325,1099-1506
DOI: 10.1002/nla.446