About 2% of people suffer from face-blindness (prosopagnosia) to some degree.
Today’s invention is a simple re-use of technology in order to help them.
There are several software applications now available which can run on a cellphone and reliably distinguish between a dozen or so faces.
Face-blind people could ask friends and family to take some sample cellphone shots of their faces and record their names.
When the cellphone camera later imaged an individual, the recorded name would be ‘spoken’ to the face-blind user, via a discreet earpiece.