How Mocap Works Series

I’m going to write a series of blog entries about optical motion capture and how it works.  Knowing whats going on inside a mocap system can help an operator better utilize it.  The series will focus on NaturalPoint’s OptiTrack cameras and systems, with references to other mocap systems and ideas.  It will also occasionally diverge into descriptions of Kinearx because my mind is a bit jumbled.  Sorry.