Quinn IP Law
Vision-based on-board real-time estimation of water film thickness
A method for determining a thickness of water on a path of travel. A plurality of images of a surface of the path of travel is captured by an image capture device over a predetermined sampling period. A plurality of wet surface detection techniques are applied to each of the images. A detection rate is determined in real-time for each wet surface detection technique. A detection rate trigger condition is determined as a function of a velocity of the vehicle for each detection rate. The real-time determined detection rate trigger conditions are compared to predetermined detection rate trigger conditions in a classification module to identify matching results pattern. A water film thickness associated with the matching results pattern is identified in the classification module. A water film thickness signal is provided to a control device. The control device applies the water film thickness signal to mitigate the wet surface condition.
GM Global Technology Operations LLC
B B G G B G G B
B60T B60T G06V G01B B60T G06V G05D B60T
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Qi Qingrong Bakhtiar B. Jinsong
Zhang Zhao Litkouhi Wang