TV+TV2 Regularization with Nonconvex Sparseness-Inducing Penalty for Image Restoration
Figure 6
Comparison of reconstruction of Brain image from 9.36% DCT data. First column from up to down: original image, back projection image (PSNR = 58.0251, MSE = 0.1025, and SSIM = 0.3919), results of the TV method (PSNR = 59.8861, MSE = 0.0668, and SSIM = 0.5376), results of the TV+TV2 method (PSNR = 62.5794, MSE = 0.0395, and SSIM = 0.7519), and results of our proposed TV+TV2+ method (PSNR = 64.4744, MSE = 0.0232, and SSIM = 0.8713). Second column: close-up image in the red box. Third column: 3D close-up intensity profile in the red box. Fourth column: SSIM map.
