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公开(公告)号：US20190188495A1
公开(公告)日：2019-06-20
申请号：US15845381
申请日：2017-12-18
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Qingrong Zhao , Jinsong Wang , Bakhtiar B. Litkouhi , Jingfu Jin , Tianyu Wang
Abstract: A vehicle includes a plurality of on-vehicle cameras, and a controller executes a method to evaluate a travel surface by capturing images for fields of view of the respective cameras. Corresponding regions of interest for the images are identified, wherein each of the regions of interest is associated with the portion of the field of view of the respective camera that includes the travel surface. Portions of the images are extracted, wherein each extracted portion is associated with the region of interest in the portion of the field of view of the respective camera that includes the travel surface and wherein one extracted portion of the respective image includes the sky. The extracted portions of the images are compiled into a composite image datafile, and an image analysis of the composite image datafile is executed to determine a travel surface state. The travel surface state is communicated to another controller.
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公开(公告)号：US09972206B2
公开(公告)日：2018-05-15
申请号：US14957943
申请日：2015-12-03
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Qingrong Zhao , Jinsong Wang , Qi Zhang , Bakhtiar B. Litkouhi
IPC: G08G1/0967 , B60K31/16 , B60T8/171 , B60T8/175 , G08G1/0965 , G01S13/95 , G06K9/00 , G08G1/04 , G08G1/0962 , B60T8/172 , B60R16/023
CPC classification number: G08G1/096791 , B60K31/16 , B60R16/0237 , B60R2300/8053 , B60T8/171 , B60T8/172 , B60T8/175 , B60T2210/12 , B60T2210/13 , G01S13/867 , G01S13/95 , G06K9/00791 , G08G1/04 , G08G1/09626 , G08G1/0965
Abstract: A method for determining a wet surface condition of a road. Capturing an image of a wheel of a remote vehicle traveling in an adjacent lane by an image capture device of a host vehicle. Identifying in the captured image, by processor of a host vehicle, a region of interest relative to the wheel where the region of interest is representative of where precipitation dispersion occurs. A determination is made whether precipitation is present in the region of interest. A wet road surface signal is generated in response to the identification of precipitation in the adjacent lane.
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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
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.
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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。
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