Hi, I’m having the same problem as you.
The effect I want may not be the same.
However, it is the same in that you want to use ‘circletop’ and ‘opticalflow’ and get x.y values from multiple people.
I also use a lidar sensor.
By the way, there is code and explanation in the article I wrote…!
If you have solved this problem, any advice would be very much appreciated.