Nonconvex Weighted $\ell _p$ Minimization Based Group Sparse Representation Framework for Image Denoising
نویسندگان
چکیده
منابع مشابه
Nonconvex Weighted ℓp Minimization Based Group Sparse Representation Framework for Image Denoising
Nonlocal image representation or group sparsity has attracted considerable interest in various low-level vision tasks and has led to several state-of-the-art image denoising techniques, such as BM3D, LSSC. In the past, convex optimization with sparsity-promoting convex regularization was usually regarded as a standard scheme for estimating sparse signals in noise. However, using convex regulari...
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ژورنال
عنوان ژورنال: IEEE Signal Processing Letters
سال: 2017
ISSN: 1070-9908,1558-2361
DOI: 10.1109/lsp.2017.2731791