How to calculate FAR and FRR for a biometric system [closed]

asked 2015-07-19 11:37:52 -0600

valentine gravatar image

updated 2015-07-20 02:51:24 -0600

sturkmen gravatar image

Hello everyone,

I want to be sure i have clear understanding on this concept. I know to calculate FAR (False Acceptance Rate) and FRR (False Rejection Rate) i have to vary the system at different thresholds to different genuine and impostors. For a given threshold if the FRR is the number of classes in the training set whose distance with the same class test sample is greater than the threshold. FAR is the number of classes in the training set whose distance with different class test sample is greater than the threshold.

Please will need confirmation any who understands this concept. I want know if my understanding right before writing codes.

Thanks in advance.

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Closed for the following reason the question is answered, right answer was accepted by StevenPuttemans
close date 2015-07-20 02:20:04.195284

Comments

This explains it quite well!

StevenPuttemans gravatar imageStevenPuttemans ( 2015-07-19 11:59:38 -0600 )edit
1

Thanks stevens.

valentine gravatar imagevalentine ( 2015-07-19 12:47:41 -0600 )edit
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