Virtual checkpoint similar license plate filtering method based on cache data

Abstract

The invention relates to a virtual bayonet similar license plate filtering method based on cache data. The method comprises the following steps of uploading vehicle passing data obtained at a virtualbayonet to a cache queue in sequence; performing similar license plate number judgment on the latest to-be-uploaded vehicle passing data and the license plate numbers in the vehicle passing data in the cache queue one by one from the second piece of vehicle passing data; if the license plate numbers are judged to be similar, further judging the license plate recognition credibility of the two through a license plate recognition algorithm, and reserving vehicle passing data corresponding to the license plate numbers with high credibility in a cache queue; if the license plate number is judged to be non-similar, directly uploading recently to-be-uploaded vehicle passing data to a cache queue; and finally, popping up the vehicle passing data at the tail of the cache queue and storing the vehicle passing data in a storage library corresponding to the virtual bayonet. According to the invention, similar vehicle passing data is filtered and eliminated, data redundancy is avoided, and the overall performance of the vehicle identification system is improved.

Description

technical field [0001] The invention belongs to the field of filtering similar license plates of virtual bayonets, and in particular relates to a method for filtering similar license plates of virtual bayonets based on cached data. Background technique [0002] At present, safe cities and smart cities have become more and more popular. As an important part of a safe city, the virtual checkpoint technology can reuse high-definition security surveillance cameras arbitrarily, and use video analysis technology and big data processing technology to realize the function of the checkpoint without changing the original monitoring structure. The technology is easy to operate, does not need to be upgraded to change the camera structure, and can be deployed in large-scale clusters. It provides effective criminal investigation means for the detection of traffic accidents and criminal public security cases, realizes rapid and accurate analysis and response to social focus events, and gre...

AI Technical Summary

Problems solved by technology

The camera used by the virtual bayonet is an ordinary road camera with a large inclination angle, poor image quality, and complex and changeable background environment, which affects the accuracy of license plate recognition and causes similar passing data to appear in the same bayonet within a short period of time. Too much of this type of data will inevitably affect the use of the system, reduce the overall recognition rate, cause data redundancy, and manual removal is also impractical

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