基于OSM的浮动车轨迹数据校正方法  

A method of floating car data correction based on OSM

作　　者：胡向勇 郭圆 HU Xiangyong;GUO Yuan(Xinchen Surveying and Mapping Co.,Ltd.,Dongguan 523000,China;State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan University,Wuhan 430079,China)

机构地区：[1]东莞市鑫辰测绘有限公司,广东东莞523000 [2]武汉大学测绘遥感信息工程国家重点实验室,湖北武汉430079

出　　处：《测绘通报》2020年第10期139-142,163,共5页Bulletin of Surveying and Mapping

基　　金：国家自然科学基金(41671441)。

摘　　要：浮动车轨迹数据具有覆盖范围广、更新周期短、获取成本低等特点,对于地图的生产和更新具有重要意义,但是由于受到卫星信号被遮挡及多路径效应的影响,其精度普遍较低。本文采用一种基于OSM作为参考数据的方式对浮动车轨迹数据进行校正。首先通过一种分层时空地图匹配的方式将轨迹数据与OSM进行匹配;然后采用引力模型对数据进行校正;最后在武汉市出租车轨迹数据上进行了试验。结果表明,本文提出的数据校正方法可以有效地提高浮动车轨迹数据的精度。Floating car track data has great significance for the production and update of road map because of the wide coverage area,low cost and the short update cycle.However,compared to other data sources,the accuracy of it is low.This article adopts the OSM as reference data to correct the floating car track data.Firstly,the floating cat track data is matched with the OSM through a hierarchical spacetime map matching algorithm.Then,an attraction model is used to correct the data.Finally,the taxs track data of Wuhan is used to verify the effectiveness of the algorithm.The result shows that the method in this paper could improve precision of floating car truck data.

关 键 词：OSM 地图匹配 浮动车数据 引力模型 数据校正 

分 类 号：P208[天文地球—地图制图学与地理信息工程]