The invention provides a license plate recognition method for increasing the license plate recognition rate. The method comprises the steps that: adopting a server to obtain a first license plate anda second license plate through a camera and an ETC device after a vehicle entering a monitoring range is monitored, and judge whether the two license plates are consistent or not; if the two license plates are consistent, determining that either license plate is a real license plate; if the two license plates are not consistent, dividing the first license plate and the second license plate into aplurality of information segments and setting weights; comparing the information segments one by one, setting the same information segments as a first approximation degree, and setting different information segments as a second approximation degree; multiplying the first approximation degree and/or the second approximation degree of each information segment by the corresponding weights, and addingproduct results to obtain an approximation degree; if the approximation degree is higher than a preset value, adopting the server to output the second license plate as a real license plate; and if the approximation degree is lower than or equal to the preset value, adopting the server to output the first license plate as a real license plate. According to the invention, ETC identification and camera identification are combined, so that the license plate identification rate is increased.
本发明提供了一种增加车牌识别率的车牌识别方法,方法包括:监测到进入监测范围的车辆后,服务器利用摄像头和ETC装置分别获取第一车牌和第二车牌,并判断是否一致;若一致则确认任一车牌为真实车牌;若不一致则将第一车牌和第二车牌分为若干信息段并设置权重;将各信息段一一比对,相同的信息段设置为第一近似度,不同的信息段设置为第二近似度;每一信息段的第一近似度和/或第二近似度与对应的权重乘积,再将乘积结果进行相加,得到近似度;若近似度高于预设值,服务器输出第二车牌作为真实车牌;若近似度值低于或者等于预设值,服务器输出第一车牌作为真实车牌。本发明通过结合ETC识别和摄像头识别,增加了车牌识别率。
License plate recognition method and system for increasing license plate recognition rate
增加车牌识别率的车牌识别方法和系统
2020-10-02
Patent
Electronic Resource
Chinese
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