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Table 2 PSNRs (dB) of the straight-line scanning of the Shepp–Logan phantom in the horizontal direction

From: Photoacoustic imaging reconstruction using combined nonlocal patch and total-variation regularization for straight-line scanning

PSNRs (dB) 50 points 20 points 10 points
TV-GD 17.74 15.87 13.48
TV-Lp 25.29 19.28 15.97
Patch-RE 20.43 16.34 13.69
Patch-TV 34.68 32.13 23.70