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Figure 14
Comparison of sinograms after different denoising procedures on 00076. Top to bottom: noisy sinogram Z; Münch et al. (2009BB1)BB20; Vo et al. (2018BB1)BB26; proposed procedure based on BM3D denoising. Note how in the zoom-in the proposed method manages to remove streak noise without creating additional artifacts. Münch et al. (2009BB1)BB20 creates a horizontal streak-like artifacts as seen in the middle of the zoom-in, not present in the noisy sinogram; Vo et al. (2018BB1)BB26 does not fully denoise the sinogram.

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