Design of Acoustic Vehicle Count System using DTW
Design of Acoustic Vehicle Count System using DTW
复制标题
基于DTW的声学车辆计数系统设计
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
Akira Fukuda
中科院分区：
文献类型：
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作者：
S. Ishida;Song Liu;Kohei Mimura;S. Tagashira;Akira Fukuda
车辆计数是智能交通系统的基本任务之一。尽管已经提出了自动车辆计数器来检索实时交通数据，但是当前的自动车辆计数器遭受高部署成本，导致部署数量有限。在本文中，我们提出了一个车辆计数器使用人行道麦克风。我们的车辆计数器依赖于两个人行道麦克风，并使用声音地图来计数车辆，声音地图是两个麦克风上车辆声音的时差地图。我们开发了一个车辆计数算法，使用基于DTW（动态时间规整）的声音地图。实验评估表明，我们的车辆计数系统成功地计数车辆的精度为0.92。
Vehicle counting is one of the fundamental tasks in the ITS (intelligent transportation system). Although automatic vehicle counters have been proposed to retrieve realtime traffic data, current automatic vehicle counters suffer from high deployment costs, resulting in limited number of deployments. In this paper, we present a vehicle counter using sidewalk microphones. Our vehicle counter relies on two sidewalk microphones and counts vehicles using a sound map, which is a time-difference map of vehicle sound on the two microphones. We developed a vehicle count algorithm using a sound map based on DTW (dynamic time warping). Experimental evaluations reveal that our vehicle count system successfully counted vehicles with a precision of 0.92.