TRAFFIC MONITORING WITH AD-HOC MICROPHONE ARRAY

被引：0
|
作者：
Toyoda, Takuya [1 ]
Ono, Nobutaka [2 ,3 ]
Miyabe, Shigeki [1 ]
Yamada, Takeshi [1 ]
Makino, Shoji [1 ]
机构：
[1] Univ Tsukuba, Tsukuba, Ibaraki 3058577, Japan
[2] Natl Inst Informat, Chiyoda Ku, Tokyo 1018430, Japan
[3] Grad Univ Adv Studies Sokendai, Hayama, Japan
来源：
2014 14TH INTERNATIONAL WORKSHOP ON ACOUSTIC SIGNAL ENHANCEMENT (IWAENC) | 2014年
关键词：
Traffic monitoring; ad-hoc microphone array; synchronization; peak detection;
D O I：
暂无
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
In this paper, we propose an easy and convenient method for traffic monitoring based on acoustic sensing with vehicle sound recorded by an ad-hoc microphone array. Since signals recorded by an ad-hoc microphone array are asynchronous, we perform channel synchronization by compensating for the difference between the start and the end of the recording and the sampling frequency mismatch. To monitor traffic, we estimate the number of the vehicles by employing the peak detection of the power envelopes, and classify the traffic lane from the difference between the propagation times of the microphones. We also demonstrate the effectiveness of our proposed method using the results of an experiment in which we estimated the number of vehicles and classified the lane in which the vehicles were traveling, according to F-measure.
引用
收藏
页码：318 / 322
页数：5
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