The invention relates to a license plate recognition method and system. A record is generated after the vehicle enters the parking lot and is identified, the camera terminal judges the credibility of an identification result, if the credibility reaches a preset value, the vehicle directly enters the parking lot successfully, if the credibility is smaller than the preset value, secondary identification is carried out in the local computer, and if the secondary identification does not reach the preset value, the result is reported to the cloud server. The license plate is calculated through the server, if the license plate does not reach the preset value, a license plate correction specialist is actively triggered to manually confirm correction, and then the license plate is sent to the parking lot; vehicle exit identification: if the camera terminal identification does not reach a preset value or the entrance record matching cannot be found, several license plates with high similarity are found from the entrance record through a local computer, and then the license plates with high matching degree are compared through a license plate identification algorithm to obtain a license plate with high similarity; and if the similarity does not reach the preset value, the operator on duty can be actively called for 24 hours to request manual correction.
本申请涉及一种车牌识别方法及系统。车辆进入停车场识别后产生记录,相机终端对识别结果的可信度进行判断,如果达到预设值就直接入场成功,如果可信度小于预设置,则在本地计算机中进行的二次识别,如果二次识别还未到达预设值,则上报给云端服务器,通过服务器来计算车牌,如果还没达到预设值,则通过主动触发车牌修正专员来人工确认修正,然后送达给停车场;车辆出场识别,如果相机终端识别没达到预设值或者找不到入场记录匹配,通过本地计算机从入场记录中找到相似度较高的几个车牌,然后通过车牌识别算法和这些匹配度高的车牌进行比对,得出相似度高的一个车牌;如果相似度没有达到预设值,就会主动调用24小时值班人员呼叫,请求人工修正。
License plate recognition method and system
车牌识别方法及系统
2021-08-20
Patent
Elektronische Ressource
Chinesisch
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