I was working on tracking (human) motion fast and with high quality. We used a virtual skeleton and infrared markers.
The overall tracking problem could be split in a number of subproblems: Finding the configuration of the trunk, the hip and the shoulders.
To improve the workflow I created software models of the skeleton. For rendering I used POV-Ray.
Finally, I was working on an interface for testing the data structures and algorithms. First I created some scetches.
Then I implemented a prototype in C++ and Qt. The prototype was based on a custom C++ plugin framework.
In another article I might show you how the custom C++ plugin framework was implemented. It was actually a very interesting experience for me, as plugin framework design turns out to be a challenging task.