Thursday, July 3, 2008

Low cost eye tracking

Marcelo from Argentina have developed a low cost solution using the Logitech Quickcam Express webcamera. The video it produces has a resolution of 352 x 288 pixels. It is mounted close to the eye and with extra illumination from two lamps. Marcelos crude eye tracker relies on an elliptic fitting of the pupil in the visible light spectrum which differes from most commercial alternatives (which uses infrared light to create reflections on the eye ball, this is typically the second step to increase the accuracy)

Considering the low resolution of the camera and the simplicity of the setup the results are noteworthy. Hope to see more development of this!

No comments: