Fig. 1. Flow chart of the solar image reconstruction

Fig. 2. Reconstruction results of the wide field-of-view image. (a) The image with the best overall quality in the input sequence; (b) TVBD; (c) S-TGV; (d) OBD; (e) M-TGV; (f) Speckle reconstruction

Fig. 3. Subregion reconstruction results of the wide field-of-view image. (a) The image with the best overall quality in the input sequence; (b) TVBD; (c) S-TGV; (d) OBD; (e) M-TGV; (f) Speckle reconstruction

Fig. 4. Reconstruction results of different input frames. (a) One frame in the input sequence; (b) ~ (g) The reconstruction results corresponding to input 1, 2, 3, 5, 10 and 20 frames respectively (h) Speckle reconstruction

Fig. 5. The effectiveness of image regularization. (a) One frame in the input sequence; (b) Without regularization; (c) M-TGV; (d) Speckle reconstruction

Fig. 6. Reconstructed images and estimated PSF with different K and β₁ values. (a) K=1, β₁=0; (b) K=1, β₁=10; (c) K=5, β₁=0; (d) K=5, β₁=10

Fig. 7. Iteration curves of the objective function. (a) Fourth scale; (b) Third scale; (c) Second scale; (d) First scale