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Driver drowsiness recognition based on computer vision technology

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3 Author(s)
Zhang, Wei ; State Key Laboratory for Automotive Safety and Energy, Department of Automotive Engineering, Tsinghua University, Beijing 100084, China ; Cheng, Bo ; Lin, Yingzi

Driver drowsiness is one of the major causes of traffic accidents. This paper presents a nonintrusive drowsiness recognition method using eye-tracking and image processing. A robust eye detection algorithm is introduced to address the problems caused by changes in illumination and driver posture. Six measures are calculated with percentage of eyelid closure, maximum closure duration, blink frequency, average opening level of the eyes, opening velocity of the eyes, and closing velocity of the eyes. These measures are combined using Fisher's linear discriminant functions using a stepwise method to reduce the correlations and extract an independent index. Results with six participants in driving simulator experiments demonstrate the feasibility of this video-based drowsiness recognition method that provided 86% accuracy.

Published in:

Tsinghua Science and Technology  (Volume:17 ,  Issue: 3 )

Date of Publication:

June 2012

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