If someone is lying on the ground, it can indicate a medical emergency or someone that requires assistance. They can also be a trip hazard for other people.
Our trip and fall algorithm creates events when there are people that have fallen or are lying on the ground in the scene. Some examples of the types of events that this algorithm finds are:
People that have fallen over
Maintenance workers on the ground
Children lying on the ground
The trip and fall algorithm determines whether the people in the scene are vertical and will create an event when they are no longer.