Research Article

GPU-Based Block-Wise Nonlocal Means Denoising for 3D Ultrasound Images

Figure 7

Denoised results of the ultrasound fetus: (a1)–(a5) the denoised result with the similarity window radius changing from 1 to 5; (b1)–(b5) the corresponding residual images between the original image and filtered images.
921303.fig.007a
(a)
921303.fig.007b
(b)