A solution based on monocular vision is proposed to recognize the position of the vehicle ahead and to monitor the safe distance in automatic driving. Firstly, whether the vehicle ahead is a monitoring vehicle can be judged by whether the contour of the vehicle ahead intersects with the roadway and the dividing line of the roadway. Secondly, according to the corresponding relationship between pixel coordinate system and spatial coordinate system in the image, the transformation model is built to calculate the real distance from the monitored vehicle. Finally, the speed of this vehicle is calculated according to the position change of the crossable delimitation line of the same direction roadway in the continuous image frames, and the safety distance between this vehicle and the monitored vehicle is determined according to the traffic laws and regulations. Experimental results show that this solution can effectively recognize the position of the vehicle ahead, monitor the safety distance and reduce the system cost.
ZHANG Xin
,
WEI Zhiheng
,
WANG Bing
. Position recognition of the vehicle ahead and safety distance monitoring based on monocular vision[J]. Journal of Hebei University(Natural Science Edition), 2022
, 42(3)
: 321
-326
.
DOI: 10.3969/j.issn.1000-1565.2022.03.015
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