Article(id=1223193061979701294, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223193053830169317, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20220476, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1647187200000, receivedDateStr=2022-03-14, revisedDate=1651161600000, revisedDateStr=2022-04-29, acceptedDate=null, acceptedDateStr=null, onlineDate=1769561551804, onlineDateStr=2026-01-28, pubDate=1674576000000, pubDateStr=2023-01-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769561551804, onlineIssueDateStr=2026-01-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769561551804, creator=13701087609, updateTime=1769561551804, updator=13701087609, issue=Issue{id=1223193053830169317, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='1', pageStart='1', pageEnd='220', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769561549861, creator=13701087609, updateTime=1769567790701, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1223219229885857794, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223193053830169317, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1223219229885857795, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223193053830169317, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=147, endPage=150, ext={EN=ArticleExt(id=1223193063116357780, articleId=1223193061979701294, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Research on Three-way Crack Change Detection Method Based on Binocular Vision, columnId=1222925283779400191, journalTitle=Water Resources and Power, columnName=WATER CONSERVANCY AND HYDROPOWER ENGINEERING, runingTitle=null, highlight=null, articleAbstract=

To solve the disadvantage of high cost and low efficiency in the traditional three-way crack detection methods, a three-dimensional crack change detection method based on binocular vision was proposed. Three-dimensional equivalent model of crack change was established, and the calculation of crack changes was equivalent to the calculation of changes between targets. Three-dimensional reconstruction of cracks was carried out through feature point code matching, spatial coordinate system transformation, three-dimensional coordinate calculation, and the three-dimensional situation of the fracture change was obtained. To verify the accuracy of the method, a unidirectional displacement test was carried out. The results show that the maximum measurement error of the opening and dislocation of the crack is within 0.2 mm, and the maximum measurement absolute error of settlement of the crack is within 0.3 mm, which meets the requirements for crack detection in technical specification for earth-rockfill dam safety monitoring.

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为解决传统裂缝三向检测方法成本高、效率低的问题,提出了一种基于双目视觉的裂缝三向变化检测方法。首先建立裂缝三维等效模型,将裂缝变化计算等效为计算标靶间变化情况;然后通过特征点编码匹配、空间坐标系变换、三维坐标计算等对裂缝进行三维重建,量化裂缝三向变化情况;最后通过单轴位移试验验证了该方法的精度。结果表明,裂缝的开合方向和平行于裂缝表面的错动方向最大测量误差在0.2 mm以内,垂直于裂缝表面的错动方向的最大测量绝对误差在0.3 mm以内,满足《土石坝安全监测技术规范》中对于裂缝检测的要求。

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丁勇(1977-),男,博士、副教授、硕导,研究方向为结构健康监测,E-mail:
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黄佑超(1997-),男,硕士研究生,研究方向为结构健康监测,E-mail:

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黄佑超(1997-),男,硕士研究生,研究方向为结构健康监测,E-mail:

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黄佑超(1997-),男,硕士研究生,研究方向为结构健康监测,E-mail:

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基于双目视觉的裂缝三向变化检测方法研究
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黄佑超 1 , 丁勇 1 , 李登华 2
水电能源科学 | 水利水电工程 2023,41(1): 147-150
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水电能源科学 | 水利水电工程 2023, 41(1): 147-150
基于双目视觉的裂缝三向变化检测方法研究
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黄佑超1 , 丁勇1 , 李登华2
作者信息
  • 1.南京理工大学理学院,江苏 南京 210094
  • 2.南京水利科学研究院,江苏 南京 210024
  • 黄佑超(1997-),男,硕士研究生,研究方向为结构健康监测,E-mail:

通讯作者:

丁勇(1977-),男,博士、副教授、硕导,研究方向为结构健康监测,E-mail:
Research on Three-way Crack Change Detection Method Based on Binocular Vision
You-chao HUANG1 , Yong DING1 , Deng-hua LI2
Affiliations
  • 1.School of Science, Nanjing University of Science and Technology, Nanjing 210094, China
  • 2.Nanjing Hydraulic Research Institute, Nanjing 210024, China
出版时间: 2023-01-25 doi: 10.20040/j.cnki.1000-7709.2023.20220476
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为解决传统裂缝三向检测方法成本高、效率低的问题,提出了一种基于双目视觉的裂缝三向变化检测方法。首先建立裂缝三维等效模型,将裂缝变化计算等效为计算标靶间变化情况;然后通过特征点编码匹配、空间坐标系变换、三维坐标计算等对裂缝进行三维重建,量化裂缝三向变化情况;最后通过单轴位移试验验证了该方法的精度。结果表明,裂缝的开合方向和平行于裂缝表面的错动方向最大测量误差在0.2 mm以内,垂直于裂缝表面的错动方向的最大测量绝对误差在0.3 mm以内,满足《土石坝安全监测技术规范》中对于裂缝检测的要求。

双目视觉  /  裂缝检测  /  混凝土面板堆石坝  /  三维重建  /  编码匹配  /  ICP算法

To solve the disadvantage of high cost and low efficiency in the traditional three-way crack detection methods, a three-dimensional crack change detection method based on binocular vision was proposed. Three-dimensional equivalent model of crack change was established, and the calculation of crack changes was equivalent to the calculation of changes between targets. Three-dimensional reconstruction of cracks was carried out through feature point code matching, spatial coordinate system transformation, three-dimensional coordinate calculation, and the three-dimensional situation of the fracture change was obtained. To verify the accuracy of the method, a unidirectional displacement test was carried out. The results show that the maximum measurement error of the opening and dislocation of the crack is within 0.2 mm, and the maximum measurement absolute error of settlement of the crack is within 0.3 mm, which meets the requirements for crack detection in technical specification for earth-rockfill dam safety monitoring.

binocular vision  /  crack detection  /  concrete face rockfill dam  /  three-dimensional reconstruction  /  code matching  /  ICP algorithm
黄佑超, 丁勇, 李登华. 基于双目视觉的裂缝三向变化检测方法研究. 水电能源科学, 2023 , 41 (1) : 147 -150 . DOI: 10.20040/j.cnki.1000-7709.2023.20220476
You-chao HUANG, Yong DING, Deng-hua LI. Research on Three-way Crack Change Detection Method Based on Binocular Vision[J]. Water Resources and Power, 2023 , 41 (1) : 147 -150 . DOI: 10.20040/j.cnki.1000-7709.2023.20220476
  • 国家自然科学基金项目(51979174)
  • 浙江省水利厅科技计划项目(RB2035)
  • 国家自然科学基金联合基金项目(U2040221)
  • 央级公益性科研院所基本科研业务费专项资金项目(Y321004)
2023年第41卷第1期
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doi: 10.20040/j.cnki.1000-7709.2023.20220476
  • 接收时间:2022-03-14
  • 首发时间:2026-01-28
  • 出版时间:2023-01-25
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出版历史
  • 收稿日期:2022-03-14
  • 修回日期:2022-04-29
基金
国家自然科学基金项目(51979174)
浙江省水利厅科技计划项目(RB2035)
国家自然科学基金联合基金项目(U2040221)
央级公益性科研院所基本科研业务费专项资金项目(Y321004)
作者信息
    1.南京理工大学理学院,江苏 南京 210094
    2.南京水利科学研究院,江苏 南京 210024

通讯作者:

丁勇(1977-),男,博士、副教授、硕导,研究方向为结构健康监测,E-mail:
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2种不同金属材料的力学参数

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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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