voice and facial recognition for children -- 2

I need voice and facial recognition for children. and how authentication methods to confirm the identity of children.and how to address them knowing that the users are children.


the system must work with three feature

1 Operates by voice verification only.
2- Operates by verifying the face only.
3-Operates by verifying with both audio and video

I need a result and a percentage matching each feature with the sample