Nonlocal Regularized Algebraic Reconstruction Techniques for MRI: An Experimental Study

Figure 4

Comparison of visual quality of reconstructed images from k-space data in Figure 1(a): (a) original 𝑏𝑟𝑎𝑖𝑛; (b) zero-padding FFT (PSNR=21.62dB); (c) ART (PSNR=32.16dB).

(a)

(b)

(c)