search

usnistgov / frvt

Repository for the Face Recognition Vendor Test (FRVT)
Other
264 stars 114 forks source link

threshold to classify as the same person #34

Closed vfacer closed 4 years ago

vfacer commented 4 years ago

We are preparing a validation package for FRVT11. Log files with similarity score (range from 0.00 to 1.00) are successfully generated. May we know which threshold FRVT will use to determine a pair of template is from the same person or different. Or we just need document it clearly in submission email?

Much appreciated any help,

-Bill

mlngan commented 4 years ago

We will run both mated (same person) and non-mated (different person) comparisons. We expect mated scores to be high and non-mated scores to be low. Then we will conduct ROC/DET analysis such that we sweep through a large number of score thresholds to determine what the false negative and false positive rates are at those thresholds. So to answer your question - we won't be using any single threshold - we will analyze many thresholds. Hope this helps.