Webcam tracking

Hi guys, I am new to programming. I want to create something like this as my project.
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How could I start and build this kind of tracking?
what addons should I use?

It will be amazing if you guys can give me tips and advice!

Thanks

Google image search first hit …

The author lists a bunch of the oF addons, etc that are used. That’s probably a good place to start. Also there is source code.

Awesome! thank you so much!