Investigating the correspondence between driver head position and glance location
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peerj-cs-146.pdf
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10.42 MB
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Checksum (MD5)
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Author(s)
Victor, Trent
Lee, Joonbum
Muñoz, Mauricio
Fridman, Alex
Reimer, Bryan
Mehler, Bruce
Date Issued
February 2018
Journal
PeerJ Computer Science
Publisher
PeerJ Inc.
Citation
Lee, Joonbum, et al. “Investigating the Correspondence between Driver Head Position and Glance Location.” PeerJ Computer Science, vol. 4, Feb. 2018, p. e146. © 2018 Lee et al.
Version
Final published version
Abstract
The relationship between a driver's glance orientation and corresponding head rotation is highly complex due to its nonlinear dependence on the individual, task, and driving context. This paper presents expanded analytic detail and findings from an effort that explored the ability of head pose to serve as an estimator for driver gaze by connecting head rotation data with manually coded gaze region data using both a statistical analysis approach and a predictive (i.e., machine learning) approach. For the latter, classification accuracy increased as visual angles between two glance locations increased. In other words, the greater the shift in gaze, the higher the accuracy of classification. This is an intuitive but important concept that we make explicit through our analysis. The highest accuracy achieved was 83% using the method of Hidden Markov Models (HMM) for the binary gaze classification problem of (a) glances to the forward roadway versus (b) glances to the center stack. Results suggest that although there are individual differences in head-glance correspondence while driving, classifier models based on head-rotation data may be robust to these differences and therefore can serve as reasonable estimators for glance location. The results suggest that driver head pose can be used as a surrogate for eye gaze in several key conditions including the identification of high-eccentricity glances. Inexpensive driver head pose tracking may be a key element in detection systems developed to mitigate driver distraction and inattention. Keywords: Head movements, Glance classification, Head-glance correspondence, Driver distraction
MIT Department
Massachusetts Institute of Technology. Center for Transportation & Logistics
Terms of Use
Creative Commons Attribution 4.0 International License
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.7717/peerj-cs.146
