On the Roles of Eye Gaze and Head Dynamics in Predicting Driver's Intent to Change Lanes

Driver behavioral cues may present a rich source of information and feedback for future intelligent advanced driver-assistance systems (ADASs). With the design of a simple and robust ADAS in mind, we are interested in determining the most important driver cues for distinguishing driver intent. Eye g...

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Bibliographic Details
Published in:IEEE transactions on intelligent transportation systems 2009-09, Vol.10 (3), p.453-462
Main Authors: Doshi, A., Trivedi, M.M.
Format: Article
Language:English
Subjects:
Advanced driver assistance systems
Alarm systems
Automobiles
Cues
driver behavior
driver intent inference
Driver-assistance systems
Dynamical systems
Dynamics
Feedback
Head motions
Intelligent sensors
Intelligent systems
Intelligent transportation systems
Intelligent vehicles
Lane changes
Lanes
machine vision
Magnetic heads
Road accidents
Robustness
Sensor systems
sparse Bayesian learning
Vehicle dynamics
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Summary:Driver behavioral cues may present a rich source of information and feedback for future intelligent advanced driver-assistance systems (ADASs). With the design of a simple and robust ADAS in mind, we are interested in determining the most important driver cues for distinguishing driver intent. Eye gaze may provide a more accurate proxy than head movement for determining driver attention, whereas the measurement of head motion is less cumbersome and more reliable in harsh driving conditions. We use a lane-change intent-prediction system (McCall et al., 2007) to determine the relative usefulness of each cue for determining intent. Various combinations of input data are presented to a discriminative classifier, which is trained to output a prediction of probable lane-change maneuver at a particular point in the future. Quantitative results from a naturalistic driving study are presented and show that head motion, when combined with lane position and vehicle dynamics, is a reliable cue for lane-change intent prediction. The addition of eye gaze does not improve performance as much as simpler head dynamics cues. The advantage of head data over eye data is shown to be statistically significant (p < 0.01) 3 s ahead of lane-change situations, indicating that there may be a biological basis for head motion to begin earlier than eye motion during "lane-change"-related gaze shifts.
ISSN:1524-9050
1558-0016
DOI:10.1109/TITS.2009.2026675