Yakang Duan, Lin Luo, Jinlong Li, Xiaorong Gao. Super-Resolution Reconstruction of Astronomical Images Based on Centralized Sparse Representation[J]. Laser & Optoelectronics Progress, 2019, 56(22): 221004
- Laser & Optoelectronics Progress
- Vol. 56, Issue 22, 221004 (2019)
Fig. 1. Flowchart of agglomerative hierarchical clustering
Fig. 2. Hierarchical clustering tree
Fig. 3. Test image set. (a) Cluster; (b) Galaxy; (c) Jupiter; (d) Satellite; (e) Saturn
Fig. 4. Effects of different experimental parameters on reconstruction results. (a) Clustering number; (b) γ
Fig. 5. Super-resolution reconstruction results of Satellite with scale factor of 3. (a) Original image; (b) bicubic interpolation algorithm; (c) ScSR algorithm; (d) Zeyde algorithm; (e) ANR algorithm; (f) ASDS algorithm; (g) NCSR algorithm; (h) proposed algorithm
Fig. 6. Super-resolution reconstruction results of Saturn with scale factor of 3. (a) Original image; (b) bicubic interpolation algorithm; (c) ScSR algorithm; (d) Zeyde algorithm; (e) ANR algorithm; (f) ASDS algorithm; (g) NCSR algorithm; (h) proposed algorithm
|
Table 1. Comparison of PSNR of reconstructed images obtained by different methodsdB
|
Table 2. Comparison of SSIM of reconstructed images obtained by different methods
|
Table 3. Comparison of reconstruction time of different methodss
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20