Article(id=1319955008959918856, tenantId=1146029695717560320, journalId=1278651732997652489, issueId=1319954930014732947, articleNumber=null, orderNo=null, doi=10.12086/oee.2026.250315, pmid=null, cstr=32245.14.oee.2026.250315, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1760976000000, receivedDateStr=2025-10-21, revisedDate=1772121600000, revisedDateStr=2026-02-27, acceptedDate=1772208000000, acceptedDateStr=2026-02-28, onlineDate=1792631397713, onlineDateStr=2026-10-22, pubDate=1782316800000, pubDateStr=2026-06-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792631397713, onlineIssueDateStr=2026-10-22, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792631397713, creator=13701087609, updateTime=1792631397713, updator=13701087609, issue=Issue{id=1319954930014732947, tenantId=1146029695717560320, journalId=1278651732997652489, year='2026', volume='53', issue='6', pageStart='250315', pageEnd='1', issueExtLink='null', onlineDate='null', pubDate='1782316800000', pubDateStr='2026-06-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792631378892, creator='13701087609', updateTime=1792631378892, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=250315, endPage=1, ext={EN=ArticleExt(id=1319955009186411273, articleId=1319955008959918856, tenantId=1146029695717560320, journalId=1278651732997652489, language=EN, title=Railway track detection based on multi-scale feature fusion, columnId=1279511634116841602, journalTitle=Opto-Electronic Engineering, columnName=Article, runingTitle=null, highlight=null, articleAbstract=
Objective Accurate railway track detection is a critical component of intelligent railway safety systems, including obstacle intrusion warning, autonomous train navigation, and infrastructure monitoring. Reliable detection improves operational safety and enables real-time decision-making in complex railway environments. However, railway track detection remains challenging due to various environmental and structural factors. Railway tracks are often affected by strong background interference caused by ballast, vegetation, shadows, and surrounding infrastructure. These background elements share similar visual characteristics with track structures, which reduces feature discriminability. In addition, railway tracks exhibit significant scale variation across image regions, ranging from large, clearly visible structures in near-view areas to thin and indistinct structures in distant regions. This variation requires the model to maintain strong multi-scale feature representation capability. Furthermore, railway scenes frequently contain complex geometric configurations, such as curved tracks, intersections, and switches, which require the model to capture long-range spatial dependencies and preserve structural continuity. Existing deep learning-based methods, particularly those derived from lane detection frameworks, improve detection performance by leveraging convolutional neural networks and structured prediction strategies. However, these methods often suffer from insufficient receptive fields, limited multi-scale context modeling capability, and weak suppression of background interference. These limitations reduce detection accuracy and robustness in challenging railway scenarios. Therefore, developing an efficient and robust railway track detection method capable of enhancing multi-scale feature representation and suppressing background interference is essential for improving intelligent railway safety systems.
Methods A railway track detection network named dilated and masked attention network (DMA-Net) was developed to address these challenges. The proposed method was built upon a row-based anchor framework, which efficiently localizes horizontal track positions and preserves structural consistency. Several key modules were introduced to improve feature representation and discrimination capability.A dilated multi-scale fusion module (DMSFM) was designed to enhance multi-scale feature extraction. This module employed parallel dilated convolutions with different dilation rates to capture contextual information at multiple spatial scales. Dilated convolutions expanded the receptive field without reducing spatial resolution or increasing computational complexity. The parallel structure enabled effective aggregation of both local structural features and global contextual information, improving representation of curved, distant, and intersecting tracks.An adaptive multi-head masked attention (AMMA) mechanism was introduced to suppress background interference and enhance track-related feature representation. This module applied a learnable mask to the attention map, which selectively suppressed irrelevant background regions and emphasized important track areas. The multi-head attention structure enabled the model to learn diverse feature relationships and improve discrimination capability in complex environments.In addition, the SimAM attention module and DropBlock regularization were incorporated to further improve feature quality and model robustness. SimAM enhanced feature discriminability by evaluating neuron importance without introducing additional parameters. DropBlock improved generalization capability by randomly suppressing contiguous feature regions during training. These modules improved robustness while maintaining a lightweight network structure.
Results and Discussions Experiments were conducted on the public Rail-DB benchmark dataset to evaluate the effectiveness of DMA-Net. The proposed method achieved a detection accuracy of 94.53%, which exceeded the original baseline rail detection method by 1.73%. Compared with other mainstream railway track detection methods, DMA-Net improved accuracy by an average of 8.07%. These results demonstrate the effectiveness of the proposed multi-scale fusion and masked attention mechanisms.The DMSFM module significantly improved the model’s ability to capture track features at different spatial scales. The enlarged receptive field enabled better representation of long-range contextual information, which improved detection performance in distant and curved track regions. The AMMA mechanism effectively suppressed background interference and enhanced attention to track-related features, which improved discrimination capability in complex environments containing ballast, vegetation, and structural interference.Visual analysis further demonstrated that DMA-Net produced smoother and more continuous detection results compared with existing methods. Performance improvements were particularly evident in challenging scenarios such as nighttime conditions, occlusion, and complex track intersections. These results confirm that the proposed modules effectively improve feature representation and detection robustness. DMA-Net maintained a lightweight design while achieving high detection accuracy. The proposed network achieved a processing speed of 268 f/s, which satisfies real-time processing requirements. The efficient architecture and lightweight attention mechanisms enable practical deployment in real-world railway safety systems.
Conclusions DMA-Net provides an effective and robust solution for railway track detection in complex environments. The DMSFM module enhances multi-scale feature representation and enlarges the receptive field, improving the model’s ability to capture track geometry across different spatial scales. The AMMA mechanism improves discrimination capability by suppressing background interference and emphasizing track-related features. The integration of SimAM attention and DropBlock regularization further improves robustness while maintaining computational efficiency. Experimental results demonstrate that DMA-Net achieves superior detection accuracy, robustness, and real-time performance compared with existing methods. The proposed network provides a reliable technical solution for intelligent railway monitoring, autonomous train navigation, and railway safety applications.
, authors=Qiping Cao
1, 2, Shanling Lin
1, 2, Jianpu Lin
1, 2, Shanhong Lü
1, 2, Zhixian Lin
1, 2, 3, Tailiang Guo
2, 3, authorsList=Qiping Cao, Shanling Lin, Jianpu Lin, Shanhong Lü, Zhixian Lin, Tailiang Guo, authorCompany=null, correspAuthors=Zhixian Lin, authorNote=null, correspAuthorsNote=
, copyrightStatement=Copyright © 2026 Opto-Electronic Engineering. All rights reserved., copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1319955017969283909, articleId=1319955008959918856, tenantId=1146029695717560320, journalId=1278651732997652489, language=CN, title=多尺度特征融合的铁路轨道检测, columnId=1279511637858160772, journalTitle=光电工程, columnName=科研论文, runingTitle=null, highlight=null, articleAbstract=
针对复杂铁路场景中轨道线检测易受背景干扰、远尺度特征表达能力不足的问题,本文提出一种融合多尺度特征增强的轨道检测模型。该模型在行锚点检测框架的基础上,引入空洞多尺度融合模块以增强对弯曲与交叉轨道的几何特征捕获能力;同时构建自适应多头掩码注意力机制,结合SimAM无参注意力与DropBlock正则化,有效抑制背景干扰并提升特征判别性。在Rail-DB数据集上的实验结果表明,所提方法检测准确率达到94.53%,较基线模型提升1.73%,在夜间、遮挡等极端场景下亦表现出良好鲁棒性。该方法在保持轻量化的同时兼顾检测精度与泛化能力,为铁路智能安防系统提供了一种可行技术方案。
, authors=曹启平
1, 2, 林珊玲
1, 2, 林坚普
1, 2, 吕珊红
1, 2, 林志贤
1, 2, 3, *, *, 郭太良
2, 3, authorsList=曹启平, 林珊玲, 林坚普, 吕珊红, 林志贤, 郭太良, authorCompany=null, correspAuthors=林志贤, authorNote=
作者贡献
曹启平:改进方法的提出,论文构思和撰写,实验数据整理与分析;林珊玲:改进方法的研讨,论文审核与编辑写作;林坚普:论文审核与编辑写作;吕珊红:调查研究;林志贤:论文思路方案和实验执行进度总体指导,论文审核;郭太良:提供课题实验条件与资源。
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曹启平 (2000-),男,福建三明人,硕士研究生,2023年于东华理工大学获得学士学位,主要从事深度学习、图像处理及图像分割的研究。E-mail:m18206056421@163.comm18206056421@163.com
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1福州大学先进制造学院,福建 泉州 362251
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Overall architecture of DMA-Net, figureFileSmall=b1g8l2JZ1C9I2WlZhBnV5g==, figureFileBig=H3/dplWXFETw+p8krKxcjg==, tableContent=null), ArticleFig(id=1319955022943728511, tenantId=1146029695717560320, journalId=1278651732997652489, articleId=1319955008959918856, language=CN, label=图1, caption=
DMA-Net整体架构图, figureFileSmall=b1g8l2JZ1C9I2WlZhBnV5g==, figureFileBig=H3/dplWXFETw+p8krKxcjg==, tableContent=null), ArticleFig(id=1319955023136666496, tenantId=1146029695717560320, journalId=1278651732997652489, articleId=1319955008959918856, language=EN, label=Fig.2, caption=
Architecture of the DMSFM module, figureFileSmall=hEUCVpnZiJujRD4gyreGbw==, figureFileBig=6QrApCW39TrFJ8TRJXq3Ng==, tableContent=null), ArticleFig(id=1319955023207969665, tenantId=1146029695717560320, journalId=1278651732997652489, articleId=1319955008959918856, language=CN, label=图2, caption=
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AMMA模块结构图, figureFileSmall=I4D/5nhsZw4eEvNjL4oWZw==, figureFileBig=83thHpWAk+p/lDKLBTdu3Q==, tableContent=null), ArticleFig(id=1319955023442850692, tenantId=1146029695717560320, journalId=1278651732997652489, articleId=1319955008959918856, language=EN, label=Fig.4, caption=
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数据集类型及其数量, figureFileSmall=0ZJ6kzHzoQDGNPQU+Lgrdw==, figureFileBig=bVx5NBNyjdE45ry6yYzBoQ==, tableContent=null), ArticleFig(id=1319955023602234246, tenantId=1146029695717560320, journalId=1278651732997652489, articleId=1319955008959918856, language=EN, label=Fig.5, caption=
Comparison of visualization results, figureFileSmall=ELmZHlXyHprnWIz737iaog==, figureFileBig=6ZgYlm+KEYC18bRFm6yE6w==, tableContent=null), ArticleFig(id=1319955023669343111, tenantId=1146029695717560320, journalId=1278651732997652489, articleId=1319955008959918856, language=CN, label=图5, caption=
可视化结果对比, figureFileSmall=ELmZHlXyHprnWIz737iaog==, figureFileBig=6ZgYlm+KEYC18bRFm6yE6w==, tableContent=null), ArticleFig(id=1319955023740646280, tenantId=1146029695717560320, journalId=1278651732997652489, articleId=1319955008959918856, language=EN, label=Fig.6, caption=
Visualization results in different scenarios. (a) Track crossing scenario; (b) Human interference scenario; (c) Overexposure condition;(d) Rainy condition; (e) Foggy condition; (f) Non-dataset scenarios, figureFileSmall=tU1L9oAUuaMrPb358Ts33A==, figureFileBig=fz8GQSp/OfqjGvLXVt2sPw==, tableContent=null), ArticleFig(id=1319955023807755145, tenantId=1146029695717560320, journalId=1278651732997652489, articleId=1319955008959918856, language=CN, label=图6, caption=
不同环境可视化结果。(a)轨道交叉场景;(b)人员干扰场景;(c)强曝光场景;(d)雨天场景;(e)雾天场景;(f)非数据集场景, figureFileSmall=tU1L9oAUuaMrPb358Ts33A==, figureFileBig=fz8GQSp/OfqjGvLXVt2sPw==, tableContent=null), ArticleFig(id=1319955023904224138, tenantId=1146029695717560320, journalId=1278651732997652489, articleId=1319955008959918856, language=EN, label=Tab.1, caption=
Results of comparison experiments
, figureFileSmall=null, figureFileBig=null, tableContent=
| Method | Backbone | Acc/% | F1/% | FPS | GFLOPS |
|---|
| UFLD[23] | 18 | 84.57 | 83.65 | 272 | 9.60 |
| UFLD | 34 | 84.82 | 85.55 | 160 | 16.32 |
| LaneATT[24] | 18 | 86.32 | 85.44 | 240 | 10.88 |
| LaneATT[24] | 34 | 86.61 | 86.03 | 153 | 17.07 |
| ClrNet[27] | 18 | 87.80 | 87.04 | 200 | 13.05 |
| ClrNet[27] | 34 | 88.04 | 88.64 | 151 | 17.30 |
| DALNet[30] | 18 | 93.26 | 93.41 | 255 | 9.75 |
| DALNet[31] | 34 | 93.64 | 93.90 | 160 | 16.58 |
| Rail-Net[25] | 18 | 92.80 | 92.20 | 310 | 8.42 |
| Rail-Net[25] | 34 | 93.13 | 92.55 | 165 | 15.82 |
| DMA-Net (Ours) | 18 | 94.53 | 94.88 | 268 | 9.80 |
| DMA-Net (Ours) | 34 | 94.32 | 94.61 | 155 | 17.38 |
), ArticleFig(id=1319955023979721611, tenantId=1146029695717560320, journalId=1278651732997652489, articleId=1319955008959918856, language=CN, label=表1, caption=
对比试验结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| Method | Backbone | Acc/% | F1/% | FPS | GFLOPS |
|---|
| UFLD[23] | 18 | 84.57 | 83.65 | 272 | 9.60 |
| UFLD | 34 | 84.82 | 85.55 | 160 | 16.32 |
| LaneATT[24] | 18 | 86.32 | 85.44 | 240 | 10.88 |
| LaneATT[24] | 34 | 86.61 | 86.03 | 153 | 17.07 |
| ClrNet[27] | 18 | 87.80 | 87.04 | 200 | 13.05 |
| ClrNet[27] | 34 | 88.04 | 88.64 | 151 | 17.30 |
| DALNet[30] | 18 | 93.26 | 93.41 | 255 | 9.75 |
| DALNet[31] | 34 | 93.64 | 93.90 | 160 | 16.58 |
| Rail-Net[25] | 18 | 92.80 | 92.20 | 310 | 8.42 |
| Rail-Net[25] | 34 | 93.13 | 92.55 | 165 | 15.82 |
| DMA-Net (Ours) | 18 | 94.53 | 94.88 | 268 | 9.80 |
| DMA-Net (Ours) | 34 | 94.32 | 94.61 | 155 | 17.38 |
), ArticleFig(id=1319955024088773516, tenantId=1146029695717560320, journalId=1278651732997652489, articleId=1319955008959918856, language=EN, label=Tab.2, caption=
Results of ablation experiments
, figureFileSmall=null, figureFileBig=null, tableContent=
| DMSFM | AMMA | SimAM | Acc/% | F1/% | FPS | GFlops |
|---|
| | | 92.80 | 92.20 | 310 | 8.42 |
| √ | | | 93.32 | 93.45 | 280 | 9.06 |
| √ | | 93.63 | 93.82 | 285 | 8.95 |
| | √ | 93.18 | 93.31 | 300 | 8.63 |
| √ | √ | | 94.05 | 94.13 | 273 | 9.59 |
| √ | | √ | 93.82 | 93.95 | 278 | 9.27 |
| √ | √ | 93.57 | 93.62 | 281 | 9.17 |
| √ | √ | √ | 94.53 | 94.88 | 268 | 9.80 |
), ArticleFig(id=1319955024176853901, tenantId=1146029695717560320, journalId=1278651732997652489, articleId=1319955008959918856, language=CN, label=表2, caption=
消融实验对比结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| DMSFM | AMMA | SimAM | Acc/% | F1/% | FPS | GFlops |
|---|
| | | 92.80 | 92.20 | 310 | 8.42 |
| √ | | | 93.32 | 93.45 | 280 | 9.06 |
| √ | | 93.63 | 93.82 | 285 | 8.95 |
| | √ | 93.18 | 93.31 | 300 | 8.63 |
| √ | √ | | 94.05 | 94.13 | 273 | 9.59 |
| √ | | √ | 93.82 | 93.95 | 278 | 9.27 |
| √ | √ | 93.57 | 93.62 | 281 | 9.17 |
| √ | √ | √ | 94.53 | 94.88 | 268 | 9.80 |
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