An image denoising approach based on adaptive nonlocal total variation

2019 ◽  
Vol 65 ◽  
pp. 102661 ◽  
Author(s):  
Yan Jin ◽  
Xiaoben Jiang ◽  
Wenyu Jiang
Keyword(s):  
Image Denoising ◽  
Total Variation ◽  
Nonlocal Total Variation

A new local and nonlocal total variation regularization model for image denoising

2018 ◽  
Vol 22 (S3) ◽  
pp. 7611-7627
Author(s):  
Mingju Chen ◽  
Hua Zhang ◽  
Guojun Lin ◽  
Qiang Han
Keyword(s):  
Image Denoising ◽  
Total Variation ◽  
Total Variation Regularization ◽  
Nonlocal Total Variation

scholarly journals A New Fast Algorithm for Constrained Four-Directional Total Variation Image Denoising Problem

2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
Fan Liao ◽  
Jean Louis Coatrieux ◽  
Jiasong Wu ◽  
Huazhong Shu
Keyword(s):  
Image Denoising ◽  
Total Variation ◽  
Signal To Noise Ratio ◽  
Projection Methods ◽  
Gradient Projection ◽  
Projection Algorithm ◽  
Nonlocal Total Variation ◽  
Fast Gradient ◽  
Gradient Projection Methods ◽  
Generalized Variation

A new four-directional total variation (4-TV) model, applicable to isotropic and anisotropic TV functions, is proposed for image denoising. A dual based fast gradient projection algorithm for the constrained 4-TV image denoising problem is also reported which combines the well-known gradient projection and the fast gradient projection methods. Experimental results show that this model provides in most cases a better signal to noise ratio when compared to previous models like the reference TV, the total generalized variation, and the nonlocal total variation.

scholarly journals Spatial-Frequency domain nonlocal total variation for image denoising

2020 ◽  
Vol 14 (6) ◽  
pp. 1157-1184
Author(s):  
Haijuan Hu ◽  
◽  
Jacques Froment ◽  
Baoyan Wang ◽  
Xiequan Fan ◽  
...  
Keyword(s):  
Spatial Frequency ◽  
Frequency Domain ◽  
Image Denoising ◽  
Total Variation ◽  
Nonlocal Total Variation ◽  
Spatial Frequency Domain

Block wavelet threshold image denoising on total variation

2013 ◽  
Vol 32 (5) ◽  
pp. 1289-1292
Author(s):  
Yuan-yuan GAO ◽  
Yong-feng DIAO ◽  
Yun BIAN
Keyword(s):  
Image Denoising ◽  
Total Variation
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