...通系统 虚拟线圈 [gap=578]ital video process; Traffic flow statistics; Intelligent Transportation Systems; Virtual coils; ...
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The system adopts the match criterion of the smallest mean absolute difference and three-step search arithmetic through direction-biased motion estimation. The algorithm uses VLs set before and calculates mean motion vector of virtual loop, the direction of the road.
基于道路方向的三步搜索算法是检测算法的核心,它利用了在视频编码得到广泛使用的块匹配搜索算法,得到虚拟线圈的运动矢量,估计车辆的运动估计,利用运动矢量的幅值与幅角均值和标准偏差来判断车辆是否违章。
参考来源 - 基于DSP的电子警察系统的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
本文详细地研究了车辆目标的视频检测方法和基于虚拟线圈的交通流量检测系统。
Vehicle detection method based video and traffic flow detection system based fictitious loop are studied in details.
本文主要从两个方面解决这一问题，一是基于虚拟线圈的识别，另一个是基于差分法的识别。
There are two aspects in this paper, one is base on the identification of virtual loop, the other is base on the identification of moving detection.
针对于传统的地埋线圈检测器检测技术，本文给出了一种基于视频图像的虚拟线圈检测方法，并在实际应用中取得很好的效果。
A pre-procession method to extract the vehicle feature was presented in this paper, which combined the detection line and virtual loops.
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