Region-Based Segmentation and Wiener Pilot-Based Novel Amoeba Denoising Scheme for CT Imaging

Figure 5

Comparison of sparse-view FBP reconstructed image with proposed RBS amoeba and classical amoeba schemes, using Gaussian filtering-based pilot image. (a) 2-degree angular sampling-based sparse-view FBP reconstruction. (b) Classical amoeba distance-based image denoising of sparse-view FBP. (c) Proposed RBS amoeba-based denoising using Gaussian-filtered pilot image.