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MMA (Mean Matching Accuracy)

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MMA (Mean Matching Accuracy) 通常指的是正确匹配占百分比,一般公式为:
\operatorname{MMA}=\sum_{k=0}^{n-1}[\frac{\text{Correct\ Matches}_k}{\text{Possible\ Matches}_k}]
其中 Correct Matches 指的是重投影误差小于某个阈值(1px、3px、5px 等)的匹配视为正确匹配。通常也记为 \operatorname{MMA}@1px

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