公开(公告)号：US09928427B2

公开(公告)日：2018-03-27

申请号：US14957953

申请日：2015-12-03

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Qingrong Zhao ,  Qi Zhang ,  Jinsong Wang ,  Bakhtiar B. Litkouhi

IPC: G06K9/00 ,  G06T7/00 ,  B60W40/06 ,  G06K9/62 ,  G06K9/46 ,  H04N7/18 ,  G06K9/32 ,  G06T7/40

CPC classification number: G06K9/00798 ,  B60W40/06 ,  B60W2420/42 ,  B60W2550/14 ,  B60W2710/06 ,  B60W2710/18 ,  B60W2720/40 ,  B60W2750/40 ,  G06K9/00791 ,  G06K9/3233 ,  G06K9/4604 ,  G06K9/4647 ,  G06K9/522 ,  G06K9/6227 ,  G06T7/11 ,  G06T7/40 ,  G06T2207/20024 ,  G06T2207/20081 ,  G06T2207/30256 ,  H04N7/183

Abstract: A method for determining a wet surface condition of a road. An image of a road surface is captured by an image capture device of the host vehicle. The image capture device is mounted on a side of the host vehicle and captures an image in a downward direction. A region of interest rearward of the wheel of the host vehicle is identified in the captured image by a processor. The region of interest is representative of where rearward splash as generated by the wheel occurs. A determination is made whether precipitation is present in the region of interest by applying a filter to the image. A wet road surface signal is generated in response to the identification of precipitation in the region of interest.

公开(公告)号：US09090264B1

公开(公告)日：2015-07-28

申请号：US14302632

申请日：2014-06-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Qingrong Zhao ,  Wende Zhang ,  Jinsong Wang ,  Bakhtiar Brian Litkouhi

IPC: B60W40/06 ,  B60T8/1764

CPC classification number: B60W40/06 ,  B60T8/172 ,  B60T8/1764 ,  B60T2210/12 ,  B60T2210/32 ,  B60W2420/42

Abstract: A method for determining a wet road surface condition for a vehicle driving on a road. An image exterior of the vehicle is captured by an image capture device at a first and second instance of time. Potential objects and feature objects are detected on a ground surface of the road of travel at the first instance of time and the second instance of time. A determination is made whether the ground surface includes a mirror effect reflective surface based on a triangulation technique utilizing the feature points in the captured images at the first instance of time and the second instance of time. A wet driving surface indicating signal is generated in response to the determination that the ground surface includes a mirror effect reflective surface.

Abstract translation: 一种用于确定在道路上行驶的车辆的湿路面状况的方法。 车辆的图像外观在第一和第二时刻由图像捕获装置捕获。 潜在的物体和特征物体在第一时间和第二时间的行进道路的地面上被检测到。 基于在第一时刻和第二时刻利用捕获图像中的特征点的三角测量技术，确定地面是否包括反射镜效应反射面。 响应于地面包括反射镜反射表面的确定，产生湿驱动表面指示信号。