基于空洞卷积神经网络的噪声水平可调的高斯去噪方法

doi:10.16451/j.cnki.issn1003-6059.202111002

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Abstract Artifacts on sharp edges are easily generated when the dilated convolutional neural network(CNN) is utilized in the existing image denoising methods based on deep learning. Moreover, multiple specific denoising models are required to be trained to deal with different noise levels. Aiming at these problems, a Gaussian denoising method with tunable noise level based on dilated CNN is proposed. A noise level map is employed to make the noise level tunable. Besides, the improved dilated CNN and the reversible downsampling technology are employed, and thus the problem of artifacts on sharp edges caused by traditional dilated CNN is alleviated. The downsampled sub-images and corresponding noise level map are input into the nonlinear mapping model. Then, the model is trained by the improved CNN with the dilated rate reduced. Experiments show that the proposed method gains GPU acceleration and the ability of adjusting the noise level with the artifacts on sharp edges improved and more image details retained.

Key words： Image Denoising Dilated Convolutional Neural Network Tunable Noise Level Reversible Downsampling

Received: 07 May 2021

ZTFLH:

TP 391

Fund:National Natural Science Foundation of China(No.61873176)

Corresponding Authors: YU Lei, Ph.D., professor. His research interests include artificial intelligence and 3D reconstruction.

About author:: JIN Yifan, master student. His research interests include visual SALM, deep learning and 3D reconstruction.
FEI Shumin, Ph.D., professor. His research interests include artificial intelligence and nonlinear system.

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	JIN Yifan
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Cite this article:

JIN Yifan,YU Lei,FEI Shumin2. Gaussian Denoising Method with Tunable Noise Level Based on Dilated Convolutional Neural Network[J]. , 2021, 34(11): 979-989.

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http://manu46.magtech.com.cn/Jweb_prai/EN/10.16451/j.cnki.issn1003-6059.202111002 OR http://manu46.magtech.com.cn/Jweb_prai/EN/Y2021/V34/I11/979

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