The Swedish tech firm Tobii appears to have a new spin on the use of eye tracking to interact with the PC.
"An eye tracker estimates the point of gaze with extreme accuracy using image sensor technology that finds the user’s eyes and calculates the point of gaze with mathematical algorithms. In other words, the eye tracker works much like you would if you face another person and estimate at what they are looking just by observing their eyes."
Eye tracking has been around for awhile, but it has yet to gain widespread popularity; possibly due to its inaccuracy. Most systems use either the 'bright pupil' or 'dark pupil' method of the tracking the eye and both have minor flaws such as not working outdoors or not tracking well with certain eye colors. This new system uses both tracking methods in an attempt to eliminate some of the bugs and eliminates some the accessory problems, like the need to wear a headset. The Tobii eye tracking system is in its infancy so whether or not it proves a viable option for the disabled, and a nice performance enhancement for those who are not, remains to be seen.
Tobii Website
Fox News Story - Eye tracking useful to wounded warriors
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