Fig. 11From: An improved nonlinear diffusion in Laplacian pyramid domain for cone beam CT denoising during image-guided vascular interventionOne slice of the CBCT data from one patient and its enlarged region which is indicatd by a white square in (a1). a1 the original image, b1-f1 filtered image by PM, NCDF, BF, NLMF and LPMND, respectively. a2-f2 Corresponding enlargements in (a1-f1). Display window: [− 1024 HU, 1976 HU]Back to article page