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Yaw Estimation Using Cylindrical and Ellipsoidal Face Models

机译:使用圆柱和椭圆面模型的偏航估计

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摘要

Accurate head yaw estimation is necessary for detecting driver inattention in forward collision warning systems. In this paper, we propose three geometric models under the ellipsoidal framework for accurate head yaw estimation. We present theoretical analysis of the cylindrical and ellipsoidal face models used for yaw angle estimation of head rotation. The relationship between cylindrical, ellipsoidal, and proposed models is derived. We provide error functions for all models. Furthermore, for each model, over/under estimation of angle, zero crossings of error, bounds on yaw angle estimate, and bounds on error are presented. Experimental results of the proposed models on four standard head pose data sets yielded a mean absolute error between 4 $^{circ}$ and 8 $^{circ}$ demonstrating the efficacy of the proposed models over the state-of-the-art methods.
机译:准确的头部偏航估计对于检测前方碰撞警告系统中的驾驶员注意力不集中是必要的。在本文中,我们提出了椭圆框架下的三种几何模型,用于精确的航向偏航估计。我们介绍了用于头部旋转的偏航角估计的圆柱面和椭圆面模型的理论分析。推导了圆柱,椭圆和建议模型之间的关系。我们为所有型号提供错误功能。此外,对于每个模型,都提供了角度的上/下估计,误差的零交叉,偏航角估计的界限以及误差的界限。所提出的模型在四个标准头部姿态数据集上的实验结果产生了4个 $ ^ {circ} $ 和8 $ ^ {circ} $ 证明了所提出的模型在最先进的方法。

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