arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.00928cs.CVcs.AIcs.CY
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使用基于深度学习的复杂事件处理和开放式交通摄像机的OpenStreetMap交通预测框架

Traffic Prediction Framework for OpenStreetMap using Deep Learning based Complex Event Processing and Open Traffic Cameras

Piyush Yadav, Dipto Sarkar, Dhaval Salwala, Edward Curry

摘要:

近实时交通信息是数字导航地图的一个有用功能。然而,大多数商业提供商依赖于隐私妥协的措施,如从手机获取位置信息来估计流量。缺乏使用开放数据平台的开源交通估计方法是在OpenStreetMap(OSM)之上构建复杂导航服务的瓶颈。我们提出了一种基于深度学习的复杂事件处理(CEP)方法,该方法依赖于公开可用的视频摄像机流进行流量估计。所提出的框架执行近实时目标检测和对象属性提取跨相机集群并行导出多个措施相关的交通与OpenStreetMap上可视化的结果。对象属性(例如,车辆速度、计数、方向)的估计提供多维数据,所述多维数据可以被利用来创建超出常用的基于密度的测量的拥塞的度量和可视化。我们的方法在插值过程中将流量和计数措施结合起来,将每个车辆视为样本点,并将其速度视为权重。我们展示了多维交通指标(如流量,拥塞估计)OSM处理22个交通摄像头从伦敦街道。该系统实现了1.42秒的中位延迟和0.80的平均F分数的近实时性能。

英文摘要:

Displaying near-real-time traffic information is a useful feature of digital navigation maps. However, most commercial providers rely on privacy-compromising measures such as deriving location information from cellphones to estimate traffic. The lack of an open-source traffic estimation method using open data platforms is a bottleneck for building sophisticated navigation services on top of OpenStreetMap (OSM). We propose a deep learning-based Complex Event Processing (CEP) method that relies on publicly available video camera streams for traffic estimation. The proposed framework performs near-real-time object detection and objects property extraction across camera clusters in parallel to derive multiple measures related to traffic with the results visualized on OpenStreetMap. The estimation of object properties (e.g. vehicle speed, count, direction) provides multidimensional data that can be leveraged to create metrics and visualization for congestion beyond commonly used density-based measures. Our approach couples both flow and count measures during interpolation by considering each vehicle as a sample point and their speed as weight. We demonstrate multidimensional traffic metrics (e.g. flow rate, congestion estimation) over OSM by processing 22 traffic cameras from London streets. The system achieves a near-real-time performance of 1.42 seconds median latency and an average F-score of 0.80.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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