Invention Grant
- Patent Title: Vision-based wet road surface detection
- Patent Title (中): 基于视觉的湿路面检测
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Application No.: US14302632Application Date: 2014-06-12
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Publication No.: US09090264B1Publication Date: 2015-07-28
- Inventor: Qingrong Zhao , Wende Zhang , Jinsong Wang , Bakhtiar Brian Litkouhi
- Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Applicant Address: US MI Detroit
- Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee Address: US MI Detroit
- Main IPC: B60W40/06
- IPC: B60W40/06 ; B60T8/1764

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.
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