Sinogram Restoration for Low-Dosed X-Ray Computed Tomography Using Fractional-Order Perona-Malik Diffusion

Table 1

RMSE of different smoothing methods.

	Noisy	Median	Wlener	Gaussian	PMD	FPMD	FPMD	FPMD
	image	Filter	Filter	Filter		𝛼=0.2	𝛼=0.5	𝛼=1.5
RMSE	0.0962	0.0804	0.0634	0.0963	0.0774	0.0603	0.0735	0.0752