Interactive puddles

Hi! i’m working on project for interactive puddles and i’m looking for advice on how best to create the interactive network.

I’m expecting to have the sensor either a kinnect 2 or a webcam pointed from above either directly down or at a 45 degree angle. Im having issues figuring out how im gonna track the feet for it to move my circle (puddle) across the project. Please let me know any tools, tips or tricks for assisting. Thank you!

I have not tried focusing on tracking feet but from my current project I believe a kinect 2 would work just fine. See attached. You tend to get noise from the floor so in this case I shifted the point cloud from the Kinect2 Depth Point Cloud with a Point Transform TOP so the musicians feet are just above the xz plane but you can still see his feet and pedals. You could probably more easily use a Kinect Chop and select just the feet from skeleton. I just want to confirm it’s entirely possible to do what you want with an old cheap Kinect 2. I have three of them and they are still useful things to pick up used cheaply. Hope this helps.