Intelligent parking lot license plate identification method

Abstract

The invention relates to an intelligent parking lot license plate identification method. The intelligent parking lot license plate identification method comprises the steps of: acquiring an entering image and an entering license plate number of a vehicle driving into a parking lot, and storing the entering image and the entering license plate number in an un-exiting database; acquiring an exiting image of a vehicle waiting to exit if the vehicle waiting to exit is about to drive out of the parking lot, and acquiring an exiting license plate number of the vehicle waiting to exit; looking up in an intelligent scheme library, and determining an intelligent scheme corresponding to the parking lot; and looking up in the un-exiting database, judging whether an entering license plate number with one or two digits of characters different from that of the exiting license plate number exists in the un-exiting database, if so, determining an entering license plate number matched with the exiting license plate number according to the intelligent scheme, matching the vehicle waiting to exit for exiting, and saving the situation as an identification error event into the intelligent scheme library so as to update the intelligent scheme library. The intelligent parking lot license plate identification method improves the matching accuracy rate of entering and exiting vehicle license plates under the condition that a parking lot license plate identification device can identify the license plates, and further enhances the identification rate.

Description

technical field [0001] The invention relates to the field of automatic identification, in particular to an intelligent parking lot license plate identification method. Background technique [0002] Automatic license plate recognition technology (License Plate Recognition, LPR) is based on computer technology, image processing technology, and fuzzy recognition. It establishes a vehicle feature model and recognizes vehicle features, such as license plate number and color. It is a special computer vision system with a specific target as the object. It can automatically extract the license plate image from an image, automatically segment the characters, and then recognize the characters. It uses advanced image processing, pattern recognition and artificial intelligence technology. The collected image information is processed, and the numbers, letters and Chinese characters of the license plate can be automatically and accurately recognized in real time, and the recognition resul...

AI Technical Summary

Problems solved by technology

However, the recognition rate of the existing technology is difficult to meet the standard, and the license plate in the real environment can only be recognized through the test environment and the initialized data. error rate

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