Article(id=1153022346500755617, tenantId=1146029695717560320, journalId=1152916057816748034, issueId=1153022343707353180, articleNumber=null, orderNo=null, doi=10.3969/j.issn.2095–1469.2025.03.08, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1730390400000, receivedDateStr=2024-11-01, revisedDate=1733932800000, revisedDateStr=2024-12-12, acceptedDate=null, acceptedDateStr=null, onlineDate=1752831549525, onlineDateStr=2025-07-18, pubDate=1747670400000, pubDateStr=2025-05-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1752831549525, onlineIssueDateStr=2025-07-18, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1752831549525, creator=13701087609, updateTime=1752831549525, updator=13701087609, issue=Issue{id=1153022343707353180, tenantId=1146029695717560320, journalId=1152916057816748034, year='2025', volume='15', issue='3', pageStart='263', pageEnd='426', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1752831548859, creator=13701087609, updateTime=1757654056467, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1173249406712300330, tenantId=1146029695717560320, journalId=1152916057816748034, issueId=1153022343707353180, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1173249406712300331, tenantId=1146029695717560320, journalId=1152916057816748034, issueId=1153022343707353180, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=353, endPage=365, ext={EN=ArticleExt(id=1153022346827911330, articleId=1153022346500755617, tenantId=1146029695717560320, journalId=1152916057816748034, language=EN, title=An Attention Mechanism-Based Monocular Vehicle Distance Estimation Method for Uneven Road Surfaces, columnId=1165621800806396415, journalTitle=Chinese Journal of Automotive Engineering, columnName=Intelligent & Connected Technologies Section/Editor in Chief:GAO Zhenhai, runingTitle=null, highlight=
A monocular vehicle distance estimation based on attention mechanisms is proposed to improve estimation accuracy on uneven road surfaces. Channel and spatial attention mechanisms are incorporated into the ImVoxelNet neural network to enhance contour perception and feature discrimination, thereby reducing missed vehicle detections. Redundant information in inverse perspective mapping is eliminated through region-of-interest corner calibration, mitigating image distortion. To address variations in vehicle pose, a pose-interference-aware camera extrinsic parameter matrix is proposed, and a coordinate transformation model for uneven surfaces is established. Finally, the proportional relationship between real-world and inverse perspective images is used to construct a distance estimation model, achieving accurate estimation of the longitudinal and lateral distances. Experimental results show that the proposed method maintains a relative error below 3% within a longitudinal range of 80 meters and a lateral range of 4 meters, validating its effectiveness and accuracy.
, articleAbstract=
A monocular vehicle distance estimation based on attention mechanisms is proposed to improve estimation accuracy on uneven road surfaces. Channel and spatial attention mechanisms are incorporated into the ImVoxelNet neural network to enhance contour perception and feature discrimination, thereby reducing missed vehicle detections. Redundant information in inverse perspective mapping is eliminated through region-of-interest corner calibration, mitigating image distortion. To address variations in vehicle pose, a pose-interference-aware camera extrinsic parameter matrix is proposed, and a coordinate transformation model for uneven surfaces is established. Finally, the proportional relationship between real-world and inverse perspective images is used to construct a distance estimation model, achieving accurate estimation of the longitudinal and lateral distances. Experimental results show that the proposed method maintains a relative error below 3% within a longitudinal range of 80 meters and a lateral range of 4 meters, validating its effectiveness and accuracy.
, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, 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, authorCompany=null, fund=null, authors=null, authorsList=Yongtao LIU, Yifei LI, Longxing GAO, Yisong CHEN, Taiqi WANG), CN=ArticleExt(id=1153022385033826946, articleId=1153022346500755617, tenantId=1146029695717560320, journalId=1152916057816748034, language=CN, title=基于注意力机制的非平坦路面单目车距估计方法研究, columnId=1153756967408488571, journalTitle=汽车工程学报, columnName=智能网联技术专栏/主编:高镇海, runingTitle=null, highlight=
提出一种基于注意力机制的单目车距估计算法,以提高非平坦路面下的车距估计精度。通过将通道和空间注意力引入ImVoxelNet神经网络,增强卷积层对车辆轮廓感知和特征区分能力,有效减少车辆漏检现象;基于感兴趣区域角点标定,剔除逆透视变换时的冗余信息,改善了图像畸变问题;针对车辆姿态变化,提出了考虑姿态干扰的相机外参矩阵,建立了非平坦路面下的相机坐标转换模型;利用真实与逆透视图像的比例关系构建车距估计模型,实现对前车纵、横向距离准确估算。试验表明,本文方法在非平坦路面条件下,纵向80 m和横向4 m的间距范围内测距相对误差小于3%,验证了所提方法的有效性和准确性。
, articleAbstract=
提出一种基于注意力机制的单目车距估计算法,以提高非平坦路面下的车距估计精度。通过将通道和空间注意力引入ImVoxelNet神经网络,增强卷积层对车辆轮廓感知和特征区分能力,有效减少车辆漏检现象;基于感兴趣区域角点标定,剔除逆透视变换时的冗余信息,改善了图像畸变问题;针对车辆姿态变化,提出了考虑姿态干扰的相机外参矩阵,建立了非平坦路面下的相机坐标转换模型;利用真实与逆透视图像的比例关系构建车距估计模型,实现对前车纵、横向距离准确估算。试验表明,本文方法在非平坦路面条件下,纵向80 m和横向4 m的间距范围内测距相对误差小于3%,验证了所提方法的有效性和准确性。
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, authorsList=刘永涛, 李怡飞, 高隆鑫, 陈轶嵩, 王泰琪)}, authors=[Author(id=1175545797736280444, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153022346500755617, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=liuyongtao86@163.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1175545797815972222, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153022346500755617, authorId=1175545797736280444, language=EN, stringName=Yongtao LIU, firstName=Yongtao, middleName=null, lastName=LIU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=School of Automobile,Chang’an University,Xi’an 710064,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1175545797870498175, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153022346500755617, authorId=1175545797736280444, language=CN, stringName=刘永涛, firstName=永涛, middleName=null, lastName=刘, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=长安大学 汽车学院,西安 710064, bio={"img":"JS57gs26RATz3aj9iX4Xvw==","content":"
刘永涛(1989-),男,安徽砀山人,博士,副教授,主要研究方向为人车系统安全、智能车辆控制技术。 E-mail:liuyongtao86@163.com
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刘永涛(1989-),男,安徽砀山人,博士,副教授,主要研究方向为人车系统安全、智能车辆控制技术。 E-mail:liuyongtao86@163.com
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34(13):70-76.(in Chinese), articleTitle=Vehicle Distance Measurement with Implementation of Vehicle Attitude Angle Estimation and Inverse Perspective Mapping Based on Monocular Vision, refAbstract=null)], funds=[Fund(id=1175545801351770556, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153022346500755617, awardId=2021YFB2501202, language=CN, fundingSource=国家重点研发计划项目(2021YFB2501202), fundOrder=null, country=null), Fund(id=1175545801406296509, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153022346500755617, awardId=2023JBGS-13, language=CN, fundingSource=陕西省“两链”融合重点专项揭榜挂帅项目(2023JBGS-13), fundOrder=null, country=null), Fund(id=1175545801469211070, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153022346500755617, awardId=2024-B005, language=CN, fundingSource=“车路一体智能交通全国重点实验室”开放基金(2024-B005), fundOrder=null, country=null), Fund(id=1175545801553097151, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153022346500755617, awardId=300102223204, language=CN, fundingSource=长安大学中央高校基本科研业务费专项资金资助项目(300102223204), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1175545797664977272, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153022346500755617, xref=null, ext=[AuthorCompanyExt(id=1175545797669171577, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153022346500755617, companyId=1175545797664977272, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=School of Automobile,Chang’an University,Xi’an 710064,China), AuthorCompanyExt(id=1175545797673365882, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153022346500755617, companyId=1175545797664977272, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=长安大学 汽车学院,西安 710064)])], figs=[ArticleFig(id=1175545799317533084, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153022346500755617, language=EN, label=null, caption=null, figureFileSmall=qHfIByhpm2YBvHVrxGu3xQ==, figureFileBig=MOr8+YSwIMV533aXgxcUew==, tableContent=null), ArticleFig(id=1175545799380447645, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153022346500755617, language=CN, label=图1, caption=
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侧倾角和俯仰角对摄像头高度影响, figureFileSmall=hoQ6frW11GR6prfxTMAiNw==, figureFileBig=FctEMc6aVXjuSsIq04XnSg==, tableContent=null), ArticleFig(id=1175545799913124262, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153022346500755617, language=EN, label=null, caption=null, figureFileSmall=v/RQ+jPxdxsYoeLMWa6jOg==, figureFileBig=ejHLcP4AhScNQvd9+tq8Zg==, tableContent=null), ArticleFig(id=1175545799980233127, tenantId=1146029695717560320, journalId=1152916057816748034, articleId=1153022346500755617, language=CN, label=图6, caption=
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| 模型 | 3D AP40/% |
| 简单 | 中等 | 困难 |
| ImVoxelNet[15] | 87.46 | 78.40 | 76.85 |
| 改进ImVoxelNet | 90.53 | 81.12 | 79.96 |
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3D目标检测试验结果
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| 模型 | 3D AP40/% |
| 简单 | 中等 | 困难 |
| ImVoxelNet[15] | 87.46 | 78.40 | 76.85 |
| 改进ImVoxelNet | 90.53 | 81.12 | 79.96 |
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| 道路条件 | 实际纵向车距/m | 纵向估计车距/m | 纵向车距估计误差/m | 实际横向车距/m | 横向估计车距/m | 横向车距估计误差/m |
| 平坦路面 | 10 | 9.92 | 0.08 | 1 | 0.98 | 0.02 |
| 20 | 19.95 | 0.05 | 2 | 1.96 | 0.04 |
| 40 | 39.42 | 0.58 | 3 | 3.11 | 0.11 |
| 80 | 78.73 | 1.27 | 4 | 3.69 | 0.31 |
| 非平坦路面 | 10 | 9.88 | 0.12 | 1 | 0.92 | 0.08 |
| 20 | 19.63 | 0.37 | 2 | 1.78 | 0.22 |
| 40 | 40.81 | 0.81 | 3 | 3.52 | 0.52 |
| 80 | 81.74 | 1.74 | 4 | 5.66 | 1.66 |
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平坦路面及非平坦路面下的车距估计试验结果
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| 道路条件 | 实际纵向车距/m | 纵向估计车距/m | 纵向车距估计误差/m | 实际横向车距/m | 横向估计车距/m | 横向车距估计误差/m |
| 平坦路面 | 10 | 9.92 | 0.08 | 1 | 0.98 | 0.02 |
| 20 | 19.95 | 0.05 | 2 | 1.96 | 0.04 |
| 40 | 39.42 | 0.58 | 3 | 3.11 | 0.11 |
| 80 | 78.73 | 1.27 | 4 | 3.69 | 0.31 |
| 非平坦路面 | 10 | 9.88 | 0.12 | 1 | 0.92 | 0.08 |
| 20 | 19.63 | 0.37 | 2 | 1.78 | 0.22 |
| 40 | 40.81 | 0.81 | 3 | 3.52 | 0.52 |
| 80 | 81.74 | 1.74 | 4 | 5.66 | 1.66 |
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| 方法 | 实际车距/m | 绝对误差/m | 相对误差/% |
| 纵向 | 横向 | 纵向 | 横向 |
| 文献[22] | 10 | 0.37 | 0.25 | 1.85 | 1.25 |
| 20 | 0.28 | 0.29 | 2.77 | 2.92 |
| 40 | 2.24 | 2.40 | 3.74 | 4.00 |
| 80 | 3.56 | 3.81 | 4.45 | 4.76 |
| 平均值 | 1.61 | 1.69 | 3.20 | 3.23 |
| 文献[23] | 10 | 0.42 | 0.25 | 2.10 | 1.25 |
| 20 | 0.33 | 0.38 | 3.27 | 3.75 |
| 40 | 2.69 | 2.80 | 4.48 | 4.67 |
| 80 | 4.76 | 4.46 | 5.95 | 5.58 |
| 平均值 | 2.05 | 1.97 | 3.95 | 3.81 |
| 文献[24] | 10 | 0.31 | 0.08 | 1.57 | 0.42 |
| 20 | 0.25 | 0.13 | 2.50 | 1.25 |
| 40 | 1.67 | 1.02 | 2.79 | 1.67 |
| 80 | 2.33 | 2.21 | 2.91 | 2.62 |
| 平均值 | 1.14 | 0.83 | 2.44 | 1.49 |
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非平坦路面下车辆纵、横向车距估计对比试验结果
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| 方法 | 实际车距/m | 绝对误差/m | 相对误差/% |
| 纵向 | 横向 | 纵向 | 横向 |
| 文献[22] | 10 | 0.37 | 0.25 | 1.85 | 1.25 |
| 20 | 0.28 | 0.29 | 2.77 | 2.92 |
| 40 | 2.24 | 2.40 | 3.74 | 4.00 |
| 80 | 3.56 | 3.81 | 4.45 | 4.76 |
| 平均值 | 1.61 | 1.69 | 3.20 | 3.23 |
| 文献[23] | 10 | 0.42 | 0.25 | 2.10 | 1.25 |
| 20 | 0.33 | 0.38 | 3.27 | 3.75 |
| 40 | 2.69 | 2.80 | 4.48 | 4.67 |
| 80 | 4.76 | 4.46 | 5.95 | 5.58 |
| 平均值 | 2.05 | 1.97 | 3.95 | 3.81 |
| 文献[24] | 10 | 0.31 | 0.08 | 1.57 | 0.42 |
| 20 | 0.25 | 0.13 | 2.50 | 1.25 |
| 40 | 1.67 | 1.02 | 2.79 | 1.67 |
| 80 | 2.33 | 2.21 | 2.91 | 2.62 |
| 平均值 | 1.14 | 0.83 | 2.44 | 1.49 |
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