Medical Image Denoising Algorithm Based on Sparse Nonlocal Regularized Weighted Coding and Low Rank Constraint

Table 1

Comparison of PSNR and FSIM after CT image denoising.

		WESNR		Proposed algorithm
		PSNR	FSIM	PSNR	FSIM
10	30	22.53	0.9442	22.66	0.9459
	40	20.27	0.9220	20.80	0.9277
	50	18.38	0.8914	18.65	0.8958
20	30	21.09	0.9196	21.61	0.9233
	40	19.19	0.8944	19.45	0.8958
	50	17.41	0.8627	17.93	0.8698
30	30	18.22	0.8679	19.71	0.8913
	40	17.63	0.8544	17.76	0.8586
	50	16.94	0.8368	17.06	0.8399