Fig. 8.

Preclinical mouse study results. The left panel shows the reconstructed original images from 1^st, 9^th and 13^th (from left to right) energy bins and the right panel shows the corresponding gradient images. The 1^st to 6^th rows are reconstructed by using the SART, TV, TV+LR, L₀TDL, SSCMF and NLCTF methods, respectively. The display windows for 1^st to 6^th columns are [0, 0.8] cm⁻¹, [0, 0.8] cm⁻¹ [0, 0.8] cm⁻¹, [0, 0.08] cm⁻¹, [0, 0.04] cm⁻¹and [0, 0.04] cm⁻¹, respectively.