Opto-Electronic Engineering, Volume. 50, Issue 10, 230167-1(2023)
Overlapping group sparsity on hyper-Laplacian prior of sparse angle CT reconstruction
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Fig. 1. The simulated mouse thorax phantom and the iodine contrast agent
Fig. 2. The reconstruction results of the simulated mouse model: (a) FBP; (b) SART; (c) TV; (d) TGV; (e) OGS-TV; (f) OGS-HL. From top to bottom, the reconstructed images are from 60, 90, 120 and 180
Fig. 3. The reconstruction results of the simulated mouse model: (a) FBP; (b) SART; (c) TV; (d) TGV; (e) OGS-TV; (f) OGS-HL. From top to bottom, the ROI regions are 60, 90, 120 and 180
Fig. 4. Three quantitative evaluation indexes of the reconstruction effect of the simulated mouse model: (a) NRMSE; (b) PSNR; (c) SSIM. From top to bottom, the quantitative evaluation indexes of the reconstructed images from 60, 90, 120 and 180
Fig. 5. The reconstruction results of the clinical mouse model: (a) FBP; (b) SART; (c) TV; (d) TGV; (e) OGS-TV; (f) OGS-HL. From top to bottom, the reconstructed images are from 60, 90, 120 and 180
Fig. 6. The reconstruction results of the clinical mouse model: (a) FBP; (b) SART; (c) TV; (d) TGV; (e) OGS-TV; (f) OGS-HL. From top to bottom, the ROI regions are 60, 90, 120, and 180
Table 1. Parameter settings for different algorithms
View tableView in ArticleTable 1. Parameter settings for different algorithms
算法 K q TV 1 1 OGS-TV 2n+1(n=1, 2, …, n) 1 OGS-HL 2n+1(n=1, 2, …, n)
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Ziwen Qi, Huihua Kong, Jiaxin Li, Jinxiao Pan. Overlapping group sparsity on hyper-Laplacian prior of sparse angle CT reconstruction[J]. Opto-Electronic Engineering, 2023, 50(10): 230167-1
Paper Information
Category: Article
Received: Jul. 10, 2023
Accepted: Sep. 20, 2023
Published Online: Jan. 22, 2024
The Author Email: Huihua Kong (孔慧华)
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