Fig. 3.
Three representative energy bin reconstruction results. The 1st row are reference images, and the 2nd to 7th row images are reconstructed by using the SART, TV, TV+LR, L0TDL, SSCMF and NLCTF methods. The 1st to 3rd columns correspond to the 1st, 4th and 8th channels, and their display windows are [0, 3], [0, 1.2] and [0, 0.8] cm−1, respectively.