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One reconstructed slice from the same low‐flux projection data as Fig. 5: (a) NLM‐based projection data denoising followed by FBP reconstruction (SW = 52, PW = 32, ɛ = 15); (b) NLM‐regularized statistical projection restoration followed by FBP reconstruction (SW = 52, PW = 32, ɛ = 3).
