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Kullback-Leibler threshold computing method based on clustering motion patterns

机译:基于聚类运动模式的Kullback-Leibler阈值计算方法

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In order to cluster the moving targets of the video in dense crowded scene, according to the video regulation reticulation, it can acquire the spatio-temporal motion patterns of every grid by spatio-temporal gradient. Using the symmetric K-L(Kullback-Leibler) divergence as a distance measure, the clustering of the spatio-temporal motion patterns could be finished. The accuracy of the clustering plays an important role in the target detection, and the K-L threshold is the key for the accuracy of the clustering. Different K-L threshold will lead to different clustering effect. This paper proposes a method based on the dichotomy combining power of the motion pattern to determine the K-L threshold accurately and quickly.
机译:为了将视频的运动目标聚类在密集的拥挤场景中,根据视频规则网状结构,可以通过时空梯度获取每个网格的时空运动模式。使用对称的K-L(Kullback-Leibler)发散作为距离度量,可以完成时空运动模式的聚类。聚类的准确性在目标检测中起着重要作用,而K-L阈值是聚类准确性的关键。不同的K-L阈值将导致不同的聚类效果。提出了一种基于二分法结合运动模式功率的方法,可以快速准确地确定K-L阈值。

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