Fig. 4From: Postreconstruction filtering of 3D PET images by using weighted higher-order singular value decompositionThe standard deviation in a uniform VOI as a function of parameters in each filter in NEMA phantom study. a for Gaussian filter (GF), b for bilateral filter (BF) and c for anisotropic diffusion filter (ADF), and d for standard HOSVD-based filter (HOSVD-S)Back to article page