Title
Fast, robust, and accurate image denoising via very deeply cascaded residual networks
Abstract
Patch based image modelings have shown great potential in image denoising. They mainly exploit the nonlocal self-similarity (NSS) of either input degraded images or clean natural ones when training models, while failing to learn the mappings between them. More seriously, these algorithms have very high time complexity and poor robustness when handling images with different noise variances and resolutions. To address these problems, in this paper, we propose very deeply cascaded residual networks (VDCRN) to build the precise relationships between the noisy images and their corresponding noise-free ones. It adopts a new residual unit with an identity skip connection (shortcut) to make training easy and improve generalization. The introduction of shortcut is helpful to avoid the problem of gradient vanishing and preserve more image details. By cascading three such residual units, we build the VDCRN to deploy deeper and larger convolutional networks. Based on such a residual network, our VDCRN achieves very fast speed and good robustness. Experimental results demonstrate that our model outperforms a lot of state-of-the-art denoising algorithms quantitively and qualitively.
Year
DOI
Venue
2018
8547119
2018 IEEE 20th International Workshop on Multimedia Signal Processing, MMSP 2018
Field
DocType
ISBN
Noise reduction,Residual,Noise measurement,Pattern recognition,Convolution,Computer science,Exploit,Robustness (computer science),Image denoising,Artificial intelligence,Time complexity
Conference
9.78154E+12
Citations 
PageRank 
References 
0
0.34
0
Authors
5
Name
Order
Citations
PageRank
Sun Lulu100.34
Zhang Y245950.31
Wang H37129.35
Wang H47129.35
Qionghai Dai53904215.66