High-speed intersection license plate recognition system

Abstract

The license plate recognition system comprises a power supply, an image acquisition device, a vehicle sensing device, a recognition device and a network transmission device, the power supply supplies power to the image acquisition device, the vehicle sensing device, the recognition device and the network transmission device on site; the power supply is a mains supply and / or a solar power supply system; the image acquisition device is a digital camera, and the signal output end of the vehicle sensing device is electrically connected with the input end of an electronic shutter of the digital camera; the recognition device is equipment taking a microcomputer as a core; the recognition device receives the picture from the digital camera, recognizes the license plate picture and then stores character information corresponding to the license plate picture; the identification device is connected to the network transmission equipment; a far-end management background calls the character information and / or the pictures stored in the recognition device through the network transmission equipment; the recognition device uses a convolutional neural network model to recognize the license plate, and in the convolutional neural network model, features of an input license plate picture are extracted to finally obtain output character information.

Description

technical field [0001] The invention relates to the technical field of image recognition, in particular to a high-speed intersection license plate recognition system. Background technique [0002] For the license plate recognition technology in the specific scene of the high-speed intersection, the real-time requirement is relatively high. The traditional detection method adopts a two-stage method of first segmentation and then identification. Under the same hardware conditions, the detection speed is slow. In order to meet the speed requirements, it is often necessary to invest in higher hardware costs. SUMMARY OF THE INVENTION [0003] The technical problem to be solved by the present invention is to efficiently recognize the license plate in the process of license plate recognition at a high-speed intersection, and to minimize the occupied resources, and send the recognition result to the management background. [0004] The technical solution is: a license plate recog...

AI Technical Summary

Problems solved by technology

However, the traditional detection method adopts a two-stage method that first divides and then recognizes. Under the same hardware conditions, the detection speed is slow.

In order to meet the speed requirements, it is often necessary to invest in higher hardware costs

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