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Drowsiness monitoring: a matter of life and death !

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Drowsiness monitoring:

A matter of life & death !

Clémentine FRANÇOIS, Jérôme WERTZ,

Jacques G. VERLY

Laboratory for Image and Signal Exploitation (INTELSIG) Dept. of Electrical Engineering and Computer Science

University of Liège – Belgium Biomedica, 19 April 2012

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Frightening situation !

• 20-30% of road accidents are due to drowsiness !

• 6-11% of population suffer from Excessive Daytime Sleepiness !

Source: http://devenirroutier.centerblog.net Source: http://www.lejdd.fr

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What cues do drowsiness monitoring systems use ?

State of

the driver

Behavior of

the driver

Behavior of

the vehicle

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What is the best approach ?

State of

the driver

Behavior of

the driver

Behavior of

the vehicle

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Our solution

Processing

Acquisition

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How to validate ?

Polysomnographic signals = "Gold standard"

EOG Left EOG Right EEG Fz EEG Cz EEG Pz Time

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Bottom line

• University of Liège is active in drowsiness research

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DRIVE HOME SAFELY !

Acknowledgments

Financial support: Région Wallonne

Test lab: Sleep Laboratory (CETES), CHU of Liège Driving simulator: IFSTTAR

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