Suggestions for swimming pool monitoring

Hello everyone,

I have a project for uni, in which I want to monitor people in a swimming pool in real time( basically detect if someone is in the pool and whether he is swimming or not). I haven't done anything CV related before, so I would like to ask if you have any suggestions on what should I look up for?

Some papers that I found (specifically for swimming pools) were using background subtraction, but they are not very …

computervision monitoring