Vehicle speed measurement method, device and computer-readable storage medium
A vehicle and speed measurement technology, applied in the field of intelligent transportation, can solve the problems of low driving speed accuracy, time difference, actual driving distance error amplification, etc., and achieve the effect of high accuracy and small error
Active Publication Date: 2021-06-08
HANGZHOU HIKVISION DIGITAL TECH
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Problems solved by technology
[0005] The embodiment of the present invention provides a vehicle speed measurement method, device and computer-readable storage medium, which can solve the error amplification caused by factors such as too small time difference between two adjacent speed measurement moments and too short actual driving distance in the related art, This leads to the problem of lower accuracy of the determined driving speed
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[0124] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention.
[0125] Before explaining the embodiment of the present invention in detail, first introduce the implementation environment of the embodiment of the present invention:
[0126] figure 1 It is a schematic diagram of an implementation environment provided by an embodiment of the present invention, see figure 1 , the implementation environment includes a multi-camera 101 and a server 102 . The multi-camera 101 and the server 102 ...
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The invention discloses a vehicle speed measurement method, device and computer-readable storage medium, belonging to the field of intelligent transportation. The method includes: determining the trajectory of the target vehicle in the spliced coordinate system at the current moment, and then selecting two speed measurement reference points belonging to monitoring pictures of different cameras from the trajectory of the target vehicle in the spliced coordinate system at the current moment. Then according to the splicing coordinates of these two speed measuring reference points in the stitching coordinate system, determine the actual distance between these two speed measuring reference points, and finally according to the actual distance and the video frame images to which these two speed measuring reference points belong respectively By collecting the difference between the times, the traveling speed of the target vehicle can be determined. The distance between the two speed measuring reference points selected by the present invention is generally far, and the difference between the acquisition time of the video frame images to which the two speed measuring reference points belong is also relatively large, so that the determined target vehicle can be The error of the driving speed is small and the accuracy is high.
Description
technical field [0001] The invention relates to the field of intelligent transportation, in particular to a vehicle speed measurement method, device and computer-readable storage medium. Background technique [0002] With the continuous increase of the number of vehicles in our country, the problem of traffic accidents caused by speeding vehicles is becoming more and more serious, making the speed measurement of vehicles an indispensable part of traffic control. [0003] In the related art, a vehicle speed measurement method is proposed, which includes: collecting video frame images by binocular cameras to obtain left and right video frame images. Determine the disparity maps of the left and right video frame images, and determine the actual three-dimensional coordinates of the target vehicle at the previous moment according to the determined disparity maps and the coordinates of the target vehicle in the image coordinate system at the previous moment. According to the dete...
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IPC IPC(8): G08G1/052H04N7/18G06T7/292
CPCG06T2207/10016G06T2207/30232G06T2207/30241G08G1/052G06T7/292H04N7/181
Inventor 罗义平
Owner HANGZHOU HIKVISION DIGITAL TECH