Attendance that takes itself.
One classroom photo marks the register. Face matching is always scoped to your section's roster (~60-70 students) — fast and fair whether the campus has 500 or 50,000 students. Uncertain faces go to a human review queue, never a forced guess.
For students
Register once with 3-5 quick camera shots, then just attend class. Check your history any time.
For faculty
Upload one photo at the start of class — results arrive in seconds. Review any uncertain matches yourself.