Automatic traffic monitoring by phi-OTDR data and Hough transform in a real-field environment

Catalano Ester; Coscetta Agnese; Cerri Enis; Cennamo Nunzio; Zeni Luigi; Minardo A.

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Automatic traffic monitoring by phi-OTDR data and Hough transform in a real-field environment

机译：通过PHI-OTDR数据和Hough变换在真实环境中的自动流量监控

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In this paper, we demonstrate automatic vehicle detection and counting by processing data acquired using a phase-sensitive optical time-domain reflectometer (phi-OTDR) distributed optical fiber sensor. The acquired data are processed using the Hough transform, which detects the lines in the images formed by representing the acquired data in the space-time domain. A rough classification of the vehicles (heavy versus light vehicles) is also proposed, based on the amplitude of the vibration data along the detected lines. The method has been experimentally tested by performing phi-OTDR measurements along a telecommunication fiber cable running in a buried conduit along the state road SS18 (province of Salerno, Italy), opened to normal traffic. Comparison with ground-truth data, manually generated by inspecting video recordings, allowed us to estimate a vehicle detection success rate up to 73%, while heavy vehicles were fully detected. (C) 2021 Optical Society of America

机译：在本文中，我们通过处理使用相位敏感光时域反射计（phi OTDR）分布式光纤传感器获取的数据来演示自动车辆检测和计数。采集的数据使用霍夫变换进行处理，霍夫变换通过在时空域中表示采集的数据来检测图像中的线条。此外，还提出了基于沿检测线振动数据的振幅对车辆（重型车辆和轻型车辆）进行粗略分类的建议。该方法已通过沿SS18国道（意大利萨勒诺省）的埋地管道中铺设的电信光缆进行phi OTDR测量进行了实验测试，该国道已开通正常交通。通过与通过检查视频记录手动生成的地面实况数据进行比较，我们估计车辆检测成功率高达73%，而重型车辆完全被检测到。（2021）美国光学学会

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《Applied optics》 |2021年第13期|共6页
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Catalano Ester; Coscetta Agnese; Cerri Enis; Cennamo Nunzio; Zeni Luigi; Minardo A.;
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Univ Campania Luigi Vanvitelli Dept Engn Via Roma 29 I-81031 Averse Italy;

Univ Campania Luigi Vanvitelli Dept Engn Via Roma 29 I-81031 Averse Italy;

Univ Campania Luigi Vanvitelli Dept Engn Via Roma 29 I-81031 Averse Italy;

Univ Campania Luigi Vanvitelli Dept Engn Via Roma 29 I-81031 Averse Italy;

Univ Campania Luigi Vanvitelli Dept Engn Via Roma 29 I-81031 Averse Italy;

Univ Campania Luigi Vanvitelli Dept Engn Via Roma 29 I-81031 Averse Italy;

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Automatic traffic monitoring by phi-OTDR data and Hough transform in a real-field environment

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