How to match a skeleton track with DepthVisualiser in Unity3d

Hello everybody!
In a Unity3d project I created an empty object, I gave it a mesh renderer, a mesh filter a script for Depth visualisation and the result is like below.
Next to this picture I can display the body like below
What I want is to display the skeleton track in the Depth frame like below

Could anybody tell me how to do it?

Thank you in advance!