Vehicle authentication method and device in parking charging system

Abstract

The embodiment of the invention discloses a vehicle authentication method and device in a parking charging system. The method comprises the following steps: carrying out license plate detection on a target image; under the condition that the license plate number of the vehicle to be driven out of the parking lot is not detected, performing face detection on the target image, and under the condition that the face is detected, extracting a face feature corresponding to each face in the target image as a current face feature corresponding to the vehicle to be driven out of the parking lot; matching the current face feature with the face feature corresponding to each first intra-field vehicle, and determining a first difference value between the current face feature and the face feature corresponding to each first intra-field vehicle; if a first matching confidence coefficient determined based on the minimum target difference value and the second minimum target difference value in the first difference values is greater than a first confidence coefficient threshold, determining that the difference values are different; and determining the first intra-field vehicle corresponding to the minimum target difference value and the to-be-driven-out vehicle as the same vehicle, thereby realizing more comprehensive authentication of the vehicle, ensuring realization of automatic charging of the vehicle, and reducing labor cost.

Description

technical field [0001] The invention relates to the technical field of intelligent transportation, in particular to a vehicle authentication method and device in a parking metering system. Background technique [0002] In order to improve user experience, in the current parking billing system, when the vehicle enters the designated parking lot, the image acquisition device can be used to collect the image of the vehicle entering the designated parking lot, and the vehicle’s identity can be detected from the image. The license plate number is stored, and at the same time, the vehicle entry time is recorded correspondingly. When the vehicle leaves the designated parking lot, use the image acquisition equipment to collect the exit image of the exit vehicle exiting the designated parking lot, and detect the license plate number of the exit vehicle from the exit image. The license plate number is matched with the stored license plate number of the vehicle entering the designated...

AI Technical Summary

Problems solved by technology

[0003] However, in actual scenarios, it is unavoidable that when a vehicle enters and/or exits a designated parking lot, the license plate number of the vehicle is not detected from the corresponding collected images

In this case, accurate authentication of the entry

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