Their hardware is completely worn on the user with no wires going to a computer or some other device. The sensors are attached to the goggles, and a DSP and some other hardware is attached to both the gloves and another wearable unit. The data is transferred to the computer using Bluetooth.
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I like the approach these people are taking by using other technologies to sense eye movements. I would like to know how accurate these sensors are. Can these goggles be used for pointing, for example?
I would also like to see an expanded user study to really show what these goggles can do. The study they give seems to be just a confirmation that the device kind of works. I would like to see a study that really puts the device through its paces and discovers how accurate it is and what its effects are on users. If we know the accuracy, maybe more people can use this technology for different areas of research.
2 comments of glory:
I don't think the goggles using their EOG approach is powerful enough to do anything more than relative positioning, simply by how positioning is done using what is basically trinary values. They even mentioned that they resort to relative instead of absolute positioning in the paper. Also, their user study was obviously simplistic because that's probably the limit of the system. If the eye tracker were capable of doing more, it would have defaulted to the more complex and standard keyboard user study that other eye trackers critique on.
Now that I think about it more, relative tracking does seem a bit harder to use than absolute tracking. If you move your eyes to the left, the cursor will continue moving to the left until you put your eyes back to "center." This makes it a bit more complicated for pointing.
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