Title
Deep residual neural network based image enhancement algorithm for low dose CT images
Abstract
Current deep learning based image enhancement algorithms attempt to learn the mapping relationship between degraded images and clear images directly. These algorithms often ignore the fidelity constraint of the observational model. In order to improve the image enhancement performance, an improved deep residual neural network based image enhancement algorithm (DRNN-IE) for low dose CT images is proposed in this paper. DRNN-IE embeds the image enhancement task into a deep neural network, and achieves data consistency using multiple enhancement modules and back-projection modules. The enhancement modules in DRNN-IE produce new features through fusing low-level and high-level features. In order to improve the algorithm’s generalization ability, a dual-parameter loss function is adopted to train and optimize the neural network. Experiments on real CT images show that the proposed algorithm has excellent enhancement performance and retains detailed information of low-dose CT images.
Year
DOI
Venue
2022
10.1007/s11042-021-11024-6
Multimedia Tools and Applications
Keywords
DocType
Volume
Deep residual neural network, Image enhancement, Alternate optimization, Fidelity constraint, Low dose CT images
Journal
81
Issue
ISSN
Citations 
25
1380-7501
0
PageRank 
References 
Authors
0.34
13
5
Name
Order
Citations
PageRank
Kaijian Xia100.34
Qinghua Zhou2212.88
Yizhang Jiang338227.24
Bo Chen400.34
Xiaoqing Gu563.47