These people have developed open source eye tracking software that runs
on a webcam:
http://www.eyewriter.org/
It needs some work to be useful for scientific applications, but it's a
good start.
You can get hot mirrors from Edmund Scientific, but I think the biggest
they have is 5x4 inches (about 12x10 cm) for about $200.
vf
On 12/25/10 2:12 AM, Yarden Cohen wrote:
> Hi all,
>
> We need to track the gaze direction of a monkey that inspects a computer
> screen.
> We aim at using a hot mirror and an IR camera.
> The following requirements can be relaxed:
>
> - The head of the monkey is fixed in a known location in front of the
> screen.
> - The room is dark.
> - The screen shows only black, white and gray.
>
> Where can we get a hot mirror that doesn't cost ~1000$ (for 30cmX30cm) ?
> The screen size is 25cm X 20cm (wide X tall) and the distance from the
> screen can be adjusted between 20-50cm
> (so the size of the mirror should be adjusted accordingly)
> We do not project complex or color pictures so the coating filter
> requirements can be relaxed for lower price.
>
> Is there a simple pupil tracking algorithm (not cornea) that gives accuracy
> of modest requirements (2 degrees is fine) ?
>
> Thankfully yours,
>
> Yarden Cohen
> Ph.D student
> Weizmann Institute of Science
>
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