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i do a face recognition and i got some problem. How to know someone does not have in our database

Asked by sittiphan sarapakdi on 6 Jul 2019
Latest activity Answered by Dheeraj Singh on 24 Jul 2019
i am a new programmer and i do a face recognition system by using Alexnet (CNN). i got some problem that is how to know someone does not have in our database
so i have 44 classes and i test with new person that untrained. so the result is output show random id in database. it's wrong. i need to display that person is not in database
how do i slove this problem
thankyou in advance.

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1 Answer

Answer by Dheeraj Singh on 24 Jul 2019

One way to do it is, by creating an extra class. Using AlexNet, whenever you give an image, you will get confidence value for each class.
So, whenever you give image of someone who is not in the dataset, then you will get low-confidence values for all the 44 classes. You can put some threshold depending on which you can classify the image into the 45thclass.

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