[carbocation]

60% on a per-frame basis might be enough if all you need to do is identify the condition "two supervisors are not on the floor" for at least 20 minutes.

As in, if you compute your per-frame score and compare it over bigger chunks of time, is it sufficiently different when 2 are on the floor and 2 are not?

[fareesh]

I wrote random numbers for the sake of narrating a scenario but yeah I suppose you could do Supervisor Present Y/N for 180 frame chunks @30fps and pick up the value per minute