License plate recognition method, device and system

Abstract

The invention discloses a license plate recognition method, device and system and belongs to the intelligent transportation technical field. The method includes the following steps that: a server receives first feature information sent by a first image acquisition device and second feature information sent by a second image acquisition device; and when a first license plate number in the first feature information is abnormal, the server queries second feature information matched with the first feature information, and obtains a complete vehicle license plate number according to a second license plate number in the second feature information and the abnormal first license plate number. According to the license plate recognition method, device and system of the invention adopted, the two image acquisition devices are adopted to acquire the vehicle head image and the vehicle tail image; the license plate number identified according to the collected vehicle head image or the vehicle tail image are sent to the server; and therefore, the server can restore the complete vehicle license plate number based on the two license plate numbers when one of the vehicle license plate numbers is partially blocked or the two license plate numbers are both partially blocked, and the blocked parts of the two license plate numbers are not overlapped.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of intelligent transportation, and in particular to a license plate recognition method, device and system. Background technique [0002] The license plate recognition method is one of the most widely used methods in the field of intelligent transportation. At present, most of the off-site violation detection systems (such as the red light electronic police monitoring system, speeding capture system, etc.) are based on the license plate recognition method, so as to realize automatic detection. , Automatic capture, automatic recognition and automatic storage. [0003] The current license plate recognition method is as follows: in the monitoring area, a passing vehicle is captured by an image acquisition device (such as a camera), and the vehicle image is recognized based on image analysis technology to obtain the license plate number of the vehicle in the vehicle image , the image acquis...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem in the prior art that if the license plate number is partially blocked or defaced, the server cannot determine the complete license plate number, the embodiment of the present invention provides a license plate recognition method, device and system

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