Is it possible to track the presence of people in a certain place in the room?

Question

Pattern recognition

Greetings
There is a room, there is a video camera, there is a recreation area, there is a workplace.

A person during the working day can be at the workplace, sit down to relax on the sofa, move to latrines, go to drink some water, etc. Is it possible to track the presence of a person in these places and get summary data? For example, for a working day:

• 70% behind the workplace
  
• 20% on the couch
  
• 10% xs where
  

I would like to know if this is possible, as well as read material on this topic, but I don’t even know what to look for.

Answer 1

What you are talking about is called ROI (Region of Interest). Usually it is really present in video surveillance software. If you want to write your own, take OpenCV as an example.
Where to read

Answer 2

Yes, you can. Moreover, you don’t even need to program anything for this - this is a standard function of video surveillance software.