It was experimental for trying to help identify repeat borrowers, that way we could link to their previous loan.
Separately, we experimented with various vendors "face detection" (not whose face, but rather just "is there a face") just to see how many faces appeared in a photo, because for group loans you needed at least 75% of the borrowers present in the photo. If this didn't happen then it meant the loan didn't get posted and someone would have to go back and get all the borrowers together again for another photo which is laborious and inefficient. Much better if you could give the feedback upfront. Granted, as I noted in another comment, at the time all the major vendor's tools had abysmal accuracy and we abandoned the effort.
Separately, we experimented with various vendors "face detection" (not whose face, but rather just "is there a face") just to see how many faces appeared in a photo, because for group loans you needed at least 75% of the borrowers present in the photo. If this didn't happen then it meant the loan didn't get posted and someone would have to go back and get all the borrowers together again for another photo which is laborious and inefficient. Much better if you could give the feedback upfront. Granted, as I noted in another comment, at the time all the major vendor's tools had abysmal accuracy and we abandoned the effort.