How do I sort motorsport photos by car number?
Recognition reads the competition number and livery on the car rather than looking for a face, which is not visible behind a helmet. The album comes out grouped by car, so a race meeting sorts into a gallery per driver or per team without anyone tagging frames by hand.
Why motorsport needs its own approach
There is no face to recognise. A driver is behind a helmet and a windscreen for the entire session, so face recognition contributes nothing. The number and the livery are the identity.
What it handles
Circuit racing, rallying, karting, motocross and road racing all work the same way: the number board or door number is the key, and the livery disambiguates when the number is obscured by angle or dirt.
In SnapFlow
Car-number recognition runs on the same pipeline as jersey numbers. One meeting goes in, a gallery per car comes out, and you send one link per driver or team.