מעקב אישון pupil communication system

pupil communication system

a demonstration of a communication system for ALS people that enable the user to communicate with it's surroundings using only his pupil.

The system enable 5 stages of communication :

•Choosing between Yes and No
•Choosing fro pre prepared sentences.
•Writing freely .
•Marking the a target with a laser marker.

The system using a small web cam with it's IR filter remove. And OPENCV blobe algorithm for finding the pupil and it's position. The system display it's interface on a small (1/4" ) LCD screen in front of the user eye.
And using RC servo driven pan tilt for moving the laser pointer.

The project has been held at ORT Hermalin (Israel) with the collaborating of the Technion computer science . and by Yoav , Oren and Haim with my guidance on April 2009.

For more info and projects go to my site

http://www.quickest-owl.com/

Amnon

Category:

Education

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• Amnon
• Demri
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• robot
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• www.quickest-owl.com
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• 2009
• מעקב
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• pupil
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• laser
• pan
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• traker
• eye

[marcelo39]

what function do you use to select the green painted area?

regards

[youwillcallmede]

The idea is:

Using a webcam without the IR filer and IR lighting (this will distinguish the pupil from the eye)

Using a blob analysis algorithm for combining adjacent black pixels to an indexed blobs (pixels with the same color that are connected to itch other).

Filtering the blobs bye size and shape.

Finding the center of the filtered blob ,this is the pupil center. And this blob is painted in Green with a BlobFill function.

There are a lot of other algorithms for eye tracking on the web

Amnon

[marcelo39]

your algorithm looks very good, maybe it just needs more (and in a fixed position) IR light.

Congrats!