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Table 12 Image block matching algorithm

From: Cryo-electron microscope image denoising based on the geodesic distance

Alg. 1: Similar block matching algorithm based on geodesic distance
Input: candidate block Sx, reference block set \( {\left\{{S}_n\right\}}_{n=1}^N \)
Output: SxSn
Step1. According to the Geodesic distance formula, calculate the geodesic distance between A and B.
Step2. Compare the value of dn(n = 1, 2……N), select the minimum value dn.
Step3. Determine candidate block Sx which is similar to the reference block Sn
Step4. Repeat steps 1–3 until all image blocks are completed.