Frederic Faure's profile - activity

Hi, I am preparing some lectures about "chaotic dynamics" and for this i would like to study the motion of this object: https://goo.gl/photos/TNoUum1inhhFCZ259

I know C++ but not opencv. What is the best way to extract a list of positions x(t), y(t) (where t is time or image number) of one of the yellow marked points from one of these videos please?

Thanks!

Frederic Faure.