Second-Order Regression-Based MR Image Upsampling

Table 1

PSNR, SSIM, and MI values for different methods on different slice thickness (PSNR/SSIM/MI).

	1 × 1 × 2 mm^3	1 × 1 × 3 mm^3	1 × 1 × 5 mm^3	1 × 1 × 6 mm^3
NN	25.62/0.81/1.59	24.09/0.78/1.44	21.78/0.72/1.21	21.68/0.69/1.11
GPR	25.80/0.83/1.61	24.12/0.82/1.45	21.89/0.74/1.22	21.78/0.72/1.13
NLM	26.43/0.87/1.61	24.74/0.82/1.47	22.56/0.75/1.29	22.30/0.72/1.16
Ours	26.56/0.87/1.62	24.96/0.83/1.48	23.62/0.76/1.29	22.90/0.73/1.18