交通运输研究2025，Vol.11Issue(1)：102-110,9.DOI:10.16503/j.cnki.2095-9931.2025.01.010
一种基于链码的农村公路线形比对与筛选算法
A Rural Highway Alignment Comparison and Screening Algorithm Based on Chain Code
摘要
Abstract
To improve the efficiency and accuracy of rural highway electronic map data verification,a ru-ral highway alignment comparison and screening algorithm model based on chain code technology was pro-posed.Firstly,the chain code technology was introduced to identify and extract the routes in the electronic map of rural highway,the linear feature information such as the starting point,inflection point and direc-tion change of the route was obtained,and the accurate matching of the linear chain code feature infor-mation of the route in different geographical regions and time dimensions was realized.Secondly,the 2022 and 2023 rural highway alignment data of typical districts and counties in the eastern,central,and western regions of China were selected to train the algorithm model,and the different parameter thresholds for the difference in route linear chain codes were obtained.For rural highway route data that exceed the thresholds,a convolutional neural network algorithm was used to extract route align-ments from remote sensing images and obtain linear chain code feature information for comparison,screening,and image evaluation.Finally,the algorithm was applied to the route data of 4.599 million kilometers in the 2023 national rural highway electronic map for calculation and verification.The re-sults show that compared with the traditional"total overlap"method,the efficiency of the algorithm was increased by 72.1%,the recognition rate was increased from 64.5%to 90.6%,and the accuracy was increased from 95.7%to 97.3%.The research proves that the algorithm significantly improves the efficiency and accuracy of electronic map linear data processing.It can provide technical support for the basic data storage of rural highway,and improve the level of digital development of rural highway.关键词
链码算法/线形比对/农村公路/遥感影像/卷积神经网络Key words
chain code algorithm/alignment comparison/rural highway/remote sensing image/convolutional neural network分类
交通工程引用本文复制引用
范文涛,孙翠羽,崔应寿,刘柳杨,龙佳宁..一种基于链码的农村公路线形比对与筛选算法[J].交通运输研究,2025,11(1):102-110,9.基金项目
国家重点研发计划项目(2021YFE0105600) （2021YFE0105600）
国家自然科学基金面上项目(51978263) （51978263）
