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Volume: 29 | Article ID: art00014
Face Pose Estimation From Rigid Face Landmarks For Driver Monitoring Systems
  DOI :  10.2352/ISSN.2470-1173.2017.19.AVM-025  Published OnlineJanuary 2017

Face pose contains rich information about the intent of a person, hence, estimating the face pose is important in assessing the attention of the driver. Most of the methods for pose estimation derive some image features and then either model the appearance (3D or 2D) or apply regression on the features. But these methods have high computational costs. On the other hand, we aim to estimate pose from only the facial landmark locations. In most driver monitoring systems, the important facial landmarks are readily available as they are essential in assessing driver drowsiness. Therefore, we utilize the existing eye landmarks along with nose and mouth landmarks to estimate the face pose. For this, we propose to apply linear regression on features derived only from the 2D facial landmark locations. Instead of relying on a single linear regression model, we propose to apply a global linear model to predict the pose and then refine the predicted pose by applying a local model built for that pose region. Local models are built using partially overlapping subsets of training samples. The experiments on Pointing'04, MultiPIE, and Biwi Kinect datasets show that the proposed two-level models achieve accuracy comparable to that of the state-of-the-art methods. At the same time, the proposed method can process 2000 frames per second in Octave.

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Bhawani Shankar, Dakala Jayachandra, Kalyan Kumar Hati, "Face Pose Estimation From Rigid Face Landmarks For Driver Monitoring Systemsin Proc. IS&T Int’l. Symp. on Electronic Imaging: Autonomous Vehicles and Machines,  2017,  pp 83 - 88,

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