Steering bends and changing lanes: The impact of optic flow and road edges on two point steering control
Steering bends and changing lanes: The impact of optic flow and road edges on two point steering control
复制标题
转向弯道和变道：光流和道路边缘对两点转向控制的影响
DOI：
10.1167/18.9.14
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发表时间：
2018
影响因子：
1.8
通讯作者：
Wilkie Richard McGilchrist
中科院分区：
文献类型：
--
作者：
Okafuji Yuki;Mole Callum David;Merat Natasha;Fukao Takanori;Yokokohji Yasuyoshi;Inou Hiroshi;Wilkie Richard McGilchrist
成功的驾驶涉及转向校正，以响应即时的位置误差，同时也预测即将发生的变化，以道路布局的前方。在流行的转向模型中，这些任务通常被视为单独的功能，使用两个点：近区域用于校正当前误差，远区域用于预测未来的转向要求。虽然两点控制模型可以捕捉到驾驶员行为的许多方面，但对这两个“点”的感知输入的性质仍然不清楚。受仅关注道路边缘信息的实验的启发（Land & Horwood，1995），两点模型倾向于忽略转向控制过程中光流的作用。最近有证据表明，光流应该在两点控制转向模型中考虑（Mole，Kountouriotis，Billington和Wilkie，2016）。为了研究光流和道路边缘对两点转向控制的影响，我们使用了驾驶模拟器来选择性地和系统地操纵这些组件。我们从近或远区域的场景中删除了流量和/或道路边缘信息，并研究了当沿沿着道路转向时，远路信息的效用如何变化。虽然转向行为的强烈影响的道路边缘，也有明显的贡献，光流转向响应。转向的模式是不一致的光流简单地喂入两点控制，而是，全球光流场出现，以支持有效的转向反应，在整个时间过程中的每个轨迹。
Successful driving involves steering corrections that respond to immediate positional errors while also anticipating upcoming changes to the road layout ahead. In popular steering models these tasks are often treated as separate functions using two points: the near region for correcting current errors, and the far region for anticipating future steering requirements. Whereas two-point control models can capture many aspects of driver behavior, the nature of perceptual inputs to these two “points” remains unclear. Inspired by experiments that solely focused on road-edge information (Land & Horwood, 1995), two-point models have tended to ignore the role of optic flow during steering control. There is recent evidence demonstrating that optic flow should be considered within two-point control steering models (Mole, Kountouriotis, Billington, & Wilkie, 2016). To examine the impact of optic flow and road edges on two-point steering control we used a driving simulator to selectively and systematically manipulate these components. We removed flow and/or road-edge information from near or far regions of the scene, and examined how behaviors changed when steering along roads where the utility of far-road information varied. While steering behaviors were strongly influenced by the road-edges, there were also clear contributions of optic flow to steering responses. The patterns of steering were not consistent with optic flow simply feeding into two-point control; rather, the global optic flow field appeared to support effective steering responses across the time-course of each trajectory.