From: Nonlocal total variation based on symmetric Kullback-Leibler divergence for the ultrasound image despeckling
BNLTV
SAR-BM3D
Proposed
sigma = 0.8
0.9921
0.9962
sigma = 1.0
0.9903
0.9917
0.9953
sigma = 1.3
0.99
0.9891
0.9945