Fig. 11From: Nonlocal total variation based on symmetric Kullback-Leibler divergence for the ultrasound image despecklingThe representative regions corresponding to the red rectangle region in Fig. 8a for the 3D ultrasound image. a The original image. b-d Outputs of the compared filters, b BNLTV, c SAR-BM3D, d The proposed method. BNLTV = Bayesian NLTV; SAR-BM3D = blocking matching 3D filter of SAR imageBack to article page