Mediapipe

Realtime Body tracking on Mac & Windows with just a webcam!  
 
 MediaPipe is a cross platform Framework for building machine learning pipelines for processing time-series data like video, audio, etc. Amongst many other possibilities it turns your webcam into a depth/tracking camera. Full documentation can be found here https://developers.google.com/mediapipe/   There are various ways to get Mediapipe set up in your computer; When using Touchdesigner, have a look HERE 
 But also, be sure to check out Gazebo , a HKU built OSC tool, that also runs Mediapipe.