Article(id=1174385906690699495, tenantId=1146029695717560320, journalId=1146123222451335185, issueId=1174385906053165285, articleNumber=1671-1807(2025)14-0020-07, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1741104000000, receivedDateStr=2025-03-05, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1757925019190, onlineDateStr=2025-09-15, pubDate=1753372800000, pubDateStr=2025-07-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1757925019190, onlineIssueDateStr=2025-09-15, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1757925019190, creator=13701087609, updateTime=1757925019190, updator=13701087609, issue=Issue{id=1174385906053165285, tenantId=1146029695717560320, journalId=1146123222451335185, year='2025', volume='25', issue='14', pageStart='1', pageEnd='286', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1757925019038, creator=13701087609, updateTime=1758072769121, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1175005614947316471, tenantId=1146029695717560320, journalId=1146123222451335185, issueId=1174385906053165285, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1175005614947316472, tenantId=1146029695717560320, journalId=1146123222451335185, issueId=1174385906053165285, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=20, endPage=26, ext={EN=ArticleExt(id=1174385906925580523, articleId=1174385906690699495, tenantId=1146029695717560320, journalId=1146123222451335185, language=EN, title=Digital Railway Infrastructure Component Segmentation Method Based on UAV Photogrammetry, columnId=1151876674645226399, journalTitle=Science Technology and Industry, columnName=Technology Innovation, runingTitle=null, highlight=null, articleAbstract=
With the continuous advancement of the digital transformation and upgrading of traditional railways, accurately obtaining information on railway basic components from massive railway line data is of great significance for railway maintenance, management, and safe operation. The difficulty lies in extracting key features of the data in the target area without distortion. The digital technology based on unmanned aerial vehicle (UAV) photogrammetry provides a new way to obtain extensive data on railway basic components. The UAV was equipped with a high-precision camera to acquire image data and graphic data of the basic components along the railway. Based on the comparison of the actual effects of two general methods for segmenting railway basic components from these two types of source data, the graphic data was selected as the segmentation data source, and the segmentation algorithm was improved. The aim is to automatically segment the rail and other railway basic components within the threshold range from the overall railway line data, and an engineering example is used to verify the effectiveness and feasibility of the algorithm.
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随着传统铁路数字化转型升级的不断推进,从海量铁路线路数据中精确获取铁路基础构件信息对于铁路的维护、管理与安全运营至关重要,其难点在于不失真的前提下对目标区域数据进行关键特征提取。基于无人机摄影测量的数字化技术为铁路基础构件的广泛数据获取提供了新途径。通过无人机搭载高精度相机获取铁路沿线基础构件的图像数据和图形数据,基于两种源数据铁路基础构件分割通用方法实例的实际效果对比,选择以图形数据为分割数据源并改进分割算法,以期从整体铁路线路数据中自动分割出阈值区间中的钢轨及其他铁路基础构件并以工程实例验证该算法的有效性和可行性。
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张森(1994—),男,甘肃兰州人,硕士,助理工程师,研究方向为无人机摄影测量数据处理。
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张森(1994—),男,甘肃兰州人,硕士,助理工程师,研究方向为无人机摄影测量数据处理。
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张森(1994—),男,甘肃兰州人,硕士,助理工程师,研究方向为无人机摄影测量数据处理。
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基于深度学习的铁路轨道与标志物提取方法研究[D]. 长沙: 湖南工业大学,
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钢轨表面缺陷图像分割关键技术研究[D]. 上海: 华东交通大学,
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霍夫变换提取铁路基础构件边缘特征, figureFileSmall=hYT/xdv9JuTw45nxm/QvjA==, figureFileBig=o04g3hib8LPpYArbiqRNow==, tableContent=null), ArticleFig(id=1175040348469474113, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1174385906690699495, language=EN, label=null, caption=null, figureFileSmall=+blc62OglSQybJi2tf1jmw==, figureFileBig=oLAVzusPftNhtgSbi0BwjQ==, tableContent=null), ArticleFig(id=1175040348532388674, tenantId=1146029695717560320, journalId=1146123222451335185, articleId=1174385906690699495, language=CN, label=图6, caption=
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| 参数 | 数值 |
| 轴距/mm | 335 |
| 重量/g | 734 |
| 最大水平速度/(km·h-1) | 65 |
| 理想飞行时间/min | 27 |
| 影像传感器 | 1/2.3英寸CMOS |
| 镜头 | f/2.2 |
| 建议作业高度/m | 50~100 |
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大疆MAVIC PRO无人机参数
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| 参数 | 数值 |
| 轴距/mm | 335 |
| 重量/g | 734 |
| 最大水平速度/(km·h-1) | 65 |
| 理想飞行时间/min | 27 |
| 影像传感器 | 1/2.3英寸CMOS |
| 镜头 | f/2.2 |
| 建议作业高度/m | 50~100 |
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航高/ m | 等效焦 距/mm | 像元大 小/μm | 地面分 率/cm | 航向叠 度/% | 旁向叠 度/% | 像片 数/张 |
| 50 | 35 | 1.39 | 5 | 80 | 60 | 268 |
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航摄参数
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航高/ m | 等效焦 距/mm | 像元大 小/μm | 地面分 率/cm | 航向叠 度/% | 旁向叠 度/% | 像片 数/张 |
| 50 | 35 | 1.39 | 5 | 80 | 60 | 268 |
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航高/ m | 焦距/ mm | 像元大 小/μm | 地面分 率/cm | 航向叠 度/% | 旁向叠 度/% | 像片 数/张 |
| 160 | 25/35 | 3. 9 | 2或3 | 78 | 71 | 1 119 |
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航摄参数
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航高/ m | 焦距/ mm | 像元大 小/μm | 地面分 率/cm | 航向叠 度/% | 旁向叠 度/% | 像片 数/张 |
| 160 | 25/35 | 3. 9 | 2或3 | 78 | 71 | 1 119 |
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