Automated drowsiness detection for improved driving safety

Vural, Esra and Çetin, Müjdat and Erçil, Aytül and Littlewort, Gwen and Bartlett, Marian and Movellan, Javier (2008) Automated drowsiness detection for improved driving safety. In: ICAT 2008: International Conference on Automotive Technologies, Istanbul

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Several approaches were proposed for the detection and prediction of drowsiness. The approaches can be categorized as estimating the fitness of duty, modeling the sleep-wake rhythms, measuring the vehicle based performance and online operator monitoring. Computer vision based online operator monitoring approach has become prominent due to its predictive ability of detecting drowsiness. Previous studies with this approach detect driver drowsiness primarily by making preassumptions about the relevant behavior, focusing on blink rate, eye closure, and yawning. Here we employ machine learning to datamine actual human behavior during drowsiness episodes. Automatic classifiers for 30 facial actions from the Facial Action Coding system were developed using machine learning on a separate database of spontaneous expressions. These facial actions include blinking and yawn motions, as well as a number of other facial movements. In addition, head motion was collected through automatic eye tracking and an accelerometer. These measures were passed to learning-based classifiers such as Adaboost and multinomial ridge regression. The system was able to predict sleep and crash episodes during a driving computer game with 96% accuracy within subjects and above 90% accuracy across subjects. This is the highest prediction rate reported to date for detecting real drowsiness. Moreover, the analysis revealed new information about human behavior during drowsy driving
Item Type: Papers in Conference Proceedings
Subjects: T Technology > T Technology (General)
Divisions: Faculty of Engineering and Natural Sciences > Academic programs > Telecommunications
Depositing User: Aytül Erçil
Date Deposited: 11 Nov 2008 22:01
Last Modified: 26 Apr 2022 08:48

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