Intersection space structure extraction method, system and device and storage medium

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Intersection space structure extraction method, system and device and storage medium

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YU DEXIN / ZHENG XIAOYU / XIE CHEN / WANG ZHUORUI / WU XINCHENG / WANG CHEN / PENG WANLI / YUAN ZIMIN / YANG YU / ZHANG YIMING / ... [more]

Abstract

The invention discloses an intersection space structure extraction method, system and device and a storage medium, and the method comprises the steps: determining the motion features of each track point in an original track based on original track data; performing steering mode-based classification on the motion features by using a supervised classification model to obtain a classification label of each track point; obtaining a track point data set with the classification label as a turning point, and determining intersection data through a spatial clustering method; according to intersection data, clustering track points in combination with original track data, obtaining a turning path, and completing space structure extraction. According to the embodiment of the invention, on the basis of considering the motion features extracted based on the original trajectory data, the difference of the motion features is learned through the supervised classification model based on the label classification training, accurate classification of the trajectory points is realized, and the spatial structure of the intersection is efficiently extracted through the clustering method by further combining the classification data. The method can be widely applied to the technical field of road network structure data processing.

本发明公开了一种交叉口空间结构提取方法、系统、装置及存储介质，方法包括：基于原始轨迹数据，确定原始轨迹中各个轨迹点的运动特征；利用监督分类模型，对运动特征进行基于转向模式的分类，获得各个轨迹点的分类标签；获取分类标签为转向点的轨迹点数据集，通过空间聚类方法确定交叉口数据；根据交叉口数据，结合原始轨迹数据进行轨迹点的聚类，获得转弯路径，完成空间结构提取。本发明实施例在考虑基于原始轨迹数据提取的运动特征的基础上，通过基于标签分类训练的监督分类模型学习运动特征的差异性，实现轨迹点的准确分类，进一步结合分类数据通过聚类方法高效实现交叉口空间结构的提取，可广泛应用于路网结构数据处理技术领域。

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Title :

Intersection space structure extraction method, system and device and storage medium

Additional title:

一种交叉口空间结构提取方法、系统、装置及存储介质

Contributors:

YU DEXIN (author) / ZHENG XIAOYU (author) / XIE CHEN (author) / WANG ZHUORUI (author) / WU XINCHENG (author) / WANG CHEN (author) / PENG WANLI (author) / YUAN ZIMIN (author) / YANG YU (author) / ZHANG YIMING (author)

Publication date :

2023-09-05

Type of media :

Patent

Type of material :

Electronic Resource

Language :

Chinese

Classification :

IPC:

G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS