The invention provides a video beacon data association method and system based on a time sequence. The method comprises the following steps: extracting related information of a vehicle; acquiring a time interval of continuous N vehicles corresponding to a single lane; matching the continuous beacon time interval with the time interval of the video monitoring equipment; calculating an average time difference according to all successfully matched data; traversing the video data, and designing a time window; correcting the video data by using the average time difference, searching data in a time window in the beacon data according to the time window and a beacon data value with the smallest difference with the corrected video data, setting the data as associated data and recording the associated data; and performing benchmarking processing on the unassociated video data and the beacon data. According to the method, the time interval is adopted for matching, so that the time synchronization error influence existing between related equipment can be effectively reduced, and when the data are dense, the corresponding beacon data can be correctly associated by selecting the nearest value to the corrected camera data.
本发明提供了一种基于时间序列的视频信标数据关联方法和系统,提取车辆的相关信息;获取单个车道对应的连续N个车辆的时间间隔;将连续信标时间间隔与视频监控设备的时间间隔匹配;根据所有匹配成功的数据计算出平均时间差;遍历视频数据,设计一个时间窗口;利用平均时间差修正视频数据,并按照时间窗口在信标数据中寻找位于时间窗口内的数据且与修正后视频数据差距最小的信标数据值,设为关联数据并记录;将未关联的视频数据与信标数据进行对标处理。本发明采用时间间隔进行匹配将有效降低相关设备间存在的对时误差影响,并且当数据较为密集时,通过选取离修正后摄像机数据的最近值可以较为正确的关联上相对应的信标数据。
Video beacon data association method and system based on time sequence
一种基于时间序列的视频信标数据关联方法和系统
2022-03-25
Patent
Elektronische Ressource
Chinesisch
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
An aeronautical beacon system using precise time
NTRS | 1973
|Europäisches Patentamt | 2022
|Europäisches Patentamt | 2022
|