Statistics-Guided Residual Dictionary Learning for Footprint Noise Removal

2021 ◽  
pp. 1-11
Author(s):  
Wei Chen ◽  
Omar M. Saad ◽  
Hang Wang ◽  
Yangkang Chen
Keyword(s):  
Dictionary Learning ◽  
Noise Removal

Dictionary learning based impulse noise removal via L1–L1 minimization

2013 ◽  
Vol 93 (9) ◽  
pp. 2696-2708 ◽  
Author(s):  
Shanshan Wang ◽  
Qiegen Liu ◽  
Yong Xia ◽  
Pei Dong ◽  
Jianhua Luo ◽  
...  
Keyword(s):  
Dictionary Learning ◽  
Impulse Noise ◽  
Noise Removal ◽  
L1 Minimization ◽  
Impulse Noise Removal

scholarly journals Salt and Pepper Noise Removal with Multi-Class Dictionary Learning and L0 Norm Regularizations

Algorithms ◽  
2018 ◽  
Vol 12 (1) ◽  
pp. 7
Author(s):  
Di Guo ◽  
Zhangren Tu ◽  
Jiechao Wang ◽  
Min Xiao ◽  
Xiaofeng Du ◽  
...  
Keyword(s):  
Dictionary Learning ◽  
Impulse Noise ◽  
State Of The Art ◽  
Evaluation Criteria ◽  
Objective Evaluation ◽  
Noise Removal ◽  
Alternating Direction ◽  
Data Fidelity ◽  
Salt And Pepper ◽  
Image Details

Images may be corrupted by salt and pepper impulse noise during image acquisitions or transmissions. Although promising denoising performances have been recently obtained with sparse representations, how to restore high-quality images remains challenging and open. In this work, image sparsity is enhanced with a fast multiclass dictionary learning, and then both the sparsity regularization and robust data fidelity are formulated as minimizations of L0-L0 norms for salt and pepper impulse noise removal. Additionally, a numerical algorithm of modified alternating direction minimization is derived to solve the proposed denoising model. Experimental results demonstrate that the proposed method outperforms the compared state-of-the-art ones on preserving image details and achieving higher objective evaluation criteria.

scholarly journals Three-dimensional curvelet-based dictionary learning for speckle noise removal of optical coherence tomography

2020 ◽  
Vol 11 (2) ◽  
pp. 586
Author(s):  
Mahad Esmaeili ◽  
Alireza Mehri Dehnavi ◽  
Fedra Hajizadeh ◽  
Hossein Rabbani
Keyword(s):  
Optical Coherence Tomography ◽  
Dictionary Learning ◽  
Three Dimensional ◽  
Speckle Noise ◽  
Noise Removal ◽  
Optical Coherence
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