Matching Score Metric - Hard to understand

[shreyasr-upenn]

Hello,

I'm trying to build my SuperPoint network from scratch and I want to implement the Matching Score metric. I am finding it hard to understand how the metric is computed. What do you mean by shared viewpoint region? Is the matching score the ratio of number of matches to number of keypoints detected in the two views?

Could you explain with an example from HPatches?

Thank you!