Thursday, September 30, 2010

Infrared Overkill

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I decided to try an alternative for the IR LEDs mounted to the eye tracker. Thus, inspired by a youtube Video by W. Piechulla (I think... cannot find it again), I came up with the idea of using light bulbs as an IR source.
Conventional light bulbs emmit 95% of their energy in IR light and only 5% in visible light.
I made aa test with two 40 Watt bedlamps, but they proved to be to weak. So I bought two 100 Watt IR lamps for 9 € each and set them up. Those are usually used for curing backaches... Howver, they now function as stationary IR sources on my desk, so that I am able to use GazeTracker in "Remote-Tracking" mode with 2 glints. Doing so, I no longer have to keep my head still for an accurate tracking... but now I have to full infrared overkill :)