3D Motion Capturing part 2: Drawing In Space
In my previous post I did a first test with 3D motion capturing, it worked, but it wasn’t precise enough to make a 3D drawing app (my initial plan). I did some more experiments with normal web-cams, but they all failed. There was to much “color pollution” to track a small point. So I decided to try it with infrared light.
That did the trick:
I had to build a simple infrared ‘pen’ (picture below) and convert 2 web-cams to infrared web-cams.
How: Open the web-cams. Replace the infrared filters with a filter that blocks all the visible light but won’t block infrared light. Film-negative does that for you.