Pupil Response Lie Detector

The original idea of this project was to create a home lie detect application. This is of course very complicated platform, which will take long development period.

Abstract
The original idea of this project was to create a home lie detect application. This is of course very complicated platform, which will take long development period. Finally, our project concentrates in one of the eye physiological response which is the pupil diameter differences, as response to one’s guilty knowledge his pupil diameter increases. Our application measured this change and based on GKT (guilty knowledge test) decides if subject was guilty or innocent.

The algorithm

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Running example – Original movie

exampleMovie.avi

Running example – Original movie with red pupil

Results

exampleMovie.avi

The pupil diameter diagnose for this movie (change in percent).

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Results

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Conclusions

The project results show strong correlation between the pupil diameter and guilty knowledge.
Our application could be use (even as it is) as a part of a polygraph machine, or after some changes as a web cam lie detect application.
Another great force of this lie detect tool is in that it can be used on a person without his knowledge.

Acknowledgments

We wish to thank our project supervisor, Eldad Klaiman and the Vision and Image Science Lab Staff. We are also grateful to the Ollendorff Minerva Center Fund for supporting this project