Article(id=1263818968280777311, tenantId=1146029695717560320, journalId=1263530845441638439, issueId=1263818962224165389, articleNumber=null, orderNo=null, doi=10.19693/j.issn.1673-3185.04381, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1740153600000, receivedDateStr=2025-02-22, revisedDate=1747497600000, revisedDateStr=2025-05-18, acceptedDate=null, acceptedDateStr=null, onlineDate=1779247522658, onlineDateStr=2026-05-20, pubDate=1777478400000, pubDateStr=2026-04-30, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1779247522658, onlineIssueDateStr=2026-05-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1779247522658, creator=13041195026, updateTime=1779247522658, updator=13041195026, issue=Issue{id=1263818962224165389, tenantId=1146029695717560320, journalId=1263530845441638439, year='2026', volume='21', issue='2', pageStart='1', pageEnd='444', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1779247521215, creator=13041195026, updateTime=1779247861438, updator=13041195026, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1263820389638070544, tenantId=1146029695717560320, journalId=1263530845441638439, issueId=1263818962224165389, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1263820389638070545, tenantId=1146029695717560320, journalId=1263530845441638439, issueId=1263818962224165389, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=112, endPage=124, ext={EN=ArticleExt(id=1263818970017219183, articleId=1263818968280777311, tenantId=1146029695717560320, journalId=1263530845441638439, language=EN, title=Multi-feature fusion-based terminal visual autonomous docking technology for AUV, columnId=1263818964086436367, journalTitle=Chinese Journal of Ship Research, columnName=Overall Design Technology of Unmanned Underwater Systems, runingTitle=null, highlight=null, articleAbstract=
Objective To address the low docking accuracy of autonomous underwater vehicles (AUVs) in complex underwater environments, a multi-feature fusion vision-based method is proposed.
Method A self-developed rudderless vector propulsion AUV with four thrusters was used, and the dark channel prior (DCP) dehazing algorithm was adopted for image enhancement. An improved Canny edge detection algorithm was combined with color threshold segmentation to achieve multi-feature fusion. The minimum enclosing circle method was utilized for circle center positioning, and coordinate transformation was performed to calculate the relative position and orientation for docking.
Results Unity 3D simulations and pool experiments revealed a distance-dependent trend: both mean difference and root mean square error decreased as docking distance decreased. Closer distances yielded higher visual ranging accuracy and docking precision. When the docking distance was less than 2 m, the positioning error was maintained below 5 cm, with an overall success rate of 88%.
Conclusion The proposed method fulfills the accuracy requirements for AUV autonomous docking and provides a highly robust solution for underwater equipment recovery.
, correspAuthors=Xiangdong QI, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright © 2026 Chinese Journal of Ship Research. 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, authorCompany=null, fund=null, authors=null, authorsList=Pan XIONG, Xiangdong QI, Yanlin SUN, Zhengyang ZHAO, Juhao QIN), CN=ArticleExt(id=1263819052758254019, articleId=1263818968280777311, tenantId=1146029695717560320, journalId=1263530845441638439, language=CN, title=多特征融合的AUV末端视觉自主对接技术研究, columnId=1263818964476506641, journalTitle=中国舰船研究, columnName=水下无人系统总体设计技术, runingTitle=null, highlight=null, articleAbstract=
目的 为解决自主水下航行器(AUV)在复杂水下环境中自主对接精度不足的问题,提出一种基于多特征融合的视觉导引方法。
方法 依托实验室自主研发的四桨无舵矢量推进型AUV,使用暗通道先验去雾算法进行图像增强,结合改进的Canny边缘检测与颜色阈值分割实现多特征融合,利用最小包围圆法进行圆心定位,通过坐标系转换解算相对位姿完成对接。
结果 Unity 3D仿真和水池实验结果表明,均值差和均方根误差均呈现随对接距离接近而减小的距离相关性,距离越近,视觉测距越准确,对接精度越高,对接距离小于2 m时位姿精度误差小于5 cm,总体对接成功率为88%。
结论 所提方法满足AUV自主对接任务中对接精度要求,为水下装备自主回收提供了高鲁棒性的解决方案。
, correspAuthors=齐向东, authorNote=null, correspAuthorsNote=
* 齐向东
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熊攀,男,2000年生,硕士生。研究方向:水下无人潜航器自主对接技术。E-mail:18175791992@163.com
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熊攀,男,2000年生,硕士生。研究方向:水下无人潜航器自主对接技术。E-mail:18175791992@163.com
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齐向东,男,1967年生,教授。研究方向:水下无人潜航器系统技术。E-mail:zbdxqxd@163.com
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Journal of Rocket Force University of Engineering, 2024, 38(5): 59–68 (in Chinese)., articleTitle=null, refAbstract=null), Reference(id=1263819083758355085, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=28, rfOrder=43, authorNames=null, journalName=null, refType=null, unstructuredReference=丁王杰. 面向水下自主航行器接驳的末端视觉导引关键技术研究[D]. 杭州: 浙江大学, 2023., articleTitle=null, refAbstract=null), Reference(id=1263819083930321550, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=28, rfOrder=44, authorNames=null, journalName=null, refType=null, unstructuredReference=DING W J. Research on key technologies of terminal visual-based guidance for AUV terminal docking[D]. Hangzhou: Zhejiang University, 2023 (in Chinese)., articleTitle=null, refAbstract=null), Reference(id=1263819084106482319, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=29, rfOrder=45, authorNames=null, journalName=null, refType=null, unstructuredReference=石建树. 基于视觉的AUV回收末端定位方法研究[D]. 镇江: 江苏科技大学, 2020., articleTitle=null, refAbstract=null), Reference(id=1263819084425249424, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=29, rfOrder=46, authorNames=null, journalName=null, refType=null, unstructuredReference=SHI J S. Research on vision-based AUV recovery end positioning method[D]. Zhenjiang: Jiangsu University of Science and Technology, 2020 (in Chinese)., articleTitle=null, refAbstract=null), Reference(id=1263819084551078545, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=30, rfOrder=47, authorNames=null, journalName=null, refType=null, unstructuredReference=CHERIAN A K, POOVAMMAL E, PHILIP N S, et al. Deep learning based filtering algorithm for noise removal in underwater images[J]. Water, 2021, 13(19): 2742., articleTitle=null, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1263819053169295815, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, xref=null, ext=[AuthorCompanyExt(id=1263819053177684424, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, companyId=1263819053169295815, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=State Key Laboratory of Extreme Environment Optoelectronic Dynamic Measurement Technology and Instrument, North University of China, Taiyuan 030051, China), AuthorCompanyExt(id=1263819053186073034, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, companyId=1263819053169295815, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=中北大学 极限环境光电动态测试技术与仪器全国重点实验室,山西 太原 030051)])], figs=[ArticleFig(id=1263819063256596995, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=EN, label=Fig.1, caption=
Comparison of dark channels in foggy and fog-free images, figureFileSmall=zc//9Xhzxq2YiwUi9ywdQw==, figureFileBig=V1M4Hyp/uJppjvZRd4ca0g==, tableContent=null), ArticleFig(id=1263819063487283716, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=CN, label=图1, caption=
有雾和无雾图像暗通道对比, figureFileSmall=zc//9Xhzxq2YiwUi9ywdQw==, figureFileBig=V1M4Hyp/uJppjvZRd4ca0g==, tableContent=null), ArticleFig(id=1263819063881548295, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=EN, label=Fig.2, caption=
Comparison of underwater images before and after processing, figureFileSmall=Rdd3qnT7VJKpWrFiv2QCfg==, figureFileBig=BnMD2hzRbvL+rogAQ+qPPg==, tableContent=null), ArticleFig(id=1263819065601212938, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=CN, label=图2, caption=
处理前后水下图像对比, figureFileSmall=Rdd3qnT7VJKpWrFiv2QCfg==, figureFileBig=BnMD2hzRbvL+rogAQ+qPPg==, tableContent=null), ArticleFig(id=1263819065697681931, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=EN, label=Fig.3, caption=
Flowchart of adaptive threshold adjustment, figureFileSmall=4RDzA0SlQp30RzdWqWGQyA==, figureFileBig=56wTXd7+ys3OzQOGFyAJIQ==, tableContent=null), ArticleFig(id=1263819065781568012, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=CN, label=图3, caption=
自适应阈值调节流程图, figureFileSmall=4RDzA0SlQp30RzdWqWGQyA==, figureFileBig=56wTXd7+ys3OzQOGFyAJIQ==, tableContent=null), ArticleFig(id=1263819065886425614, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=EN, label=Fig.4, caption=
Comparison of edge detection results, figureFileSmall=dTBPEJ+BDR14/mxNFISGIA==, figureFileBig=1Lv8vP20yh7Trb2JeoXQhA==, tableContent=null), ArticleFig(id=1263819066154861072, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=CN, label=图4, caption=
边缘检测效果对比图, figureFileSmall=dTBPEJ+BDR14/mxNFISGIA==, figureFileBig=1Lv8vP20yh7Trb2JeoXQhA==, tableContent=null), ArticleFig(id=1263819066289078803, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=EN, label=Fig.5, caption=
Hue histogram of the blue-labeled light source, figureFileSmall=gABkUrOWe2RB6A2c2yU51g==, figureFileBig=fexFCYGJ+YlepVByuU3+NA==, tableContent=null), ArticleFig(id=1263819066414907925, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=CN, label=图5, caption=
蓝色标识光源的色调直方图, figureFileSmall=gABkUrOWe2RB6A2c2yU51g==, figureFileBig=fexFCYGJ+YlepVByuU3+NA==, tableContent=null), ArticleFig(id=1263819066528154136, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=EN, label=Fig.6, caption=
Comparison of algorithm-processed images for underwater (3 m) docking guidance marker light sources, figureFileSmall=v9jMspI3/8XuSe4dwpScIw==, figureFileBig=FHGP4Z85B7Qi06nLvumxBg==, tableContent=null), ArticleFig(id=1263819066662371866, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=CN, label=图6, caption=
水下3 m对接导引标识光源经不同算法处理的图像对比结果, figureFileSmall=v9jMspI3/8XuSe4dwpScIw==, figureFileBig=FHGP4Z85B7Qi06nLvumxBg==, tableContent=null), ArticleFig(id=1263819066771423772, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=EN, label=Fig.7, caption=
Image processing and recognition results under adequate illumination, figureFileSmall=hvYtupEsMWckMZwvg+XLDQ==, figureFileBig=hk4QaY+ZkOYf3+tCaVA++w==, tableContent=null), ArticleFig(id=1263819066914030110, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=CN, label=图7, caption=
光照充足时图像处理及识别效果图, figureFileSmall=hvYtupEsMWckMZwvg+XLDQ==, figureFileBig=hk4QaY+ZkOYf3+tCaVA++w==, tableContent=null), ArticleFig(id=1263819067006304800, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=EN, label=Fig.8, caption=
Image processing and recognition results under insufficient illumination, figureFileSmall=6C0psCpMeafeuVUEMk9lXA==, figureFileBig=1sUa7EUYFHbBwjGnpIEH/Q==, tableContent=null), ArticleFig(id=1263819067123745314, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=CN, label=图8, caption=
光照不足时图像处理及识别效果图, figureFileSmall=6C0psCpMeafeuVUEMk9lXA==, figureFileBig=1sUa7EUYFHbBwjGnpIEH/Q==, tableContent=null), ArticleFig(id=1263819067329266212, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=EN, label=Fig.9, caption=
Checkerboard images at different angles, figureFileSmall=62nI1iKsBdUE/rD4HMgFVQ==, figureFileBig=KBWbccCkKKX/jxYSsQjx/A==, tableContent=null), ArticleFig(id=1263819067438318118, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=CN, label=图9, caption=
不同角度的棋盘格图像, figureFileSmall=62nI1iKsBdUE/rD4HMgFVQ==, figureFileBig=KBWbccCkKKX/jxYSsQjx/A==, tableContent=null), ArticleFig(id=1263819067543175720, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=EN, label=Fig.10, caption=
Simulation environment, figureFileSmall=Y9FcMaEBygh0jW0eXL/SMQ==, figureFileBig=fXlglrd+bq74soD3bfy14Q==, tableContent=null), ArticleFig(id=1263819067643839017, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=CN, label=图10, caption=
仿真环境, figureFileSmall=Y9FcMaEBygh0jW0eXL/SMQ==, figureFileBig=fXlglrd+bq74soD3bfy14Q==, tableContent=null), ArticleFig(id=1263819067882914349, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=EN, label=Fig.11, caption=
First-person view of the AUV successfully entering the docking device, figureFileSmall=sZ8F4LU22H/IHaRE34L3WA==, figureFileBig=Lss7o7570q25tF/FjyRjpA==, tableContent=null), ArticleFig(id=1263819068117795375, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=CN, label=图11, caption=
AUV成功进入对接装置第一人称视角, figureFileSmall=sZ8F4LU22H/IHaRE34L3WA==, figureFileBig=Lss7o7570q25tF/FjyRjpA==, tableContent=null), ArticleFig(id=1263819068247818800, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=EN, label=Fig.12, caption=
Experimental AUV platform, figureFileSmall=IjAK+MTNvCgX6WqmnVyhuQ==, figureFileBig=bXQnQ6OEcu5IcX67qkWCTQ==, tableContent=null), ArticleFig(id=1263819068331704883, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=CN, label=图12, caption=
实验AUV平台, figureFileSmall=IjAK+MTNvCgX6WqmnVyhuQ==, figureFileBig=bXQnQ6OEcu5IcX67qkWCTQ==, tableContent=null), ArticleFig(id=1263819070185587254, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=EN, label=Fig.13, caption=
Docking device, figureFileSmall=ZKCMMNxALVMDolCjSxzJ9w==, figureFileBig=oKvKTkv6jE+wK1jExS99qA==, tableContent=null), ArticleFig(id=1263819070311416376, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=CN, label=图13, caption=
对接装置, figureFileSmall=ZKCMMNxALVMDolCjSxzJ9w==, figureFileBig=oKvKTkv6jE+wK1jExS99qA==, tableContent=null), ArticleFig(id=1263819070458217018, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=EN, label=Fig.14, caption=
Experimental water tank, figureFileSmall=hY6gNdyBua4ZWOI44Imyaw==, figureFileBig=PADvE0Qjlq7/yYuC5DbQbg==, tableContent=null), ArticleFig(id=1263819070646960701, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=CN, label=图14, caption=
实验水池, figureFileSmall=hY6gNdyBua4ZWOI44Imyaw==, figureFileBig=PADvE0Qjlq7/yYuC5DbQbg==, tableContent=null), ArticleFig(id=1263819070781178431, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=EN, label=Fig.15, caption=
Docking attitude variation and tracking process, figureFileSmall=w4E/KGTXlNXlQvLekLZ0xA==, figureFileBig=ONXzgtYndbVUOUzCPySoWg==, tableContent=null), ArticleFig(id=1263819071087362625, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=CN, label=图15, caption=
对接姿态变化及追踪过程图, figureFileSmall=w4E/KGTXlNXlQvLekLZ0xA==, figureFileBig=ONXzgtYndbVUOUzCPySoWg==, tableContent=null), ArticleFig(id=1263819071242551875, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=EN, label=Fig.16, caption=
Process of AUV successfully entering the docking device in pool experiment, figureFileSmall=LVgv47urCOHLX6NRHqajow==, figureFileBig=ZeqRzS8lgZZM/3bSvRNuLg==, tableContent=null), ArticleFig(id=1263819071330632261, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=CN, label=图16, caption=
AUV水池实验进入对接装置过程图, figureFileSmall=LVgv47urCOHLX6NRHqajow==, figureFileBig=ZeqRzS8lgZZM/3bSvRNuLg==, tableContent=null), ArticleFig(id=1263819071448072775, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=EN, label=Fig.17, caption=
Comparison of laser ranging and visual ranging at various distances, figureFileSmall=MPT6j8MVmhPA8vm2AQQ6Vw==, figureFileBig=qlX37Tb4WPKYSZxnb/ALXg==, tableContent=null), ArticleFig(id=1263819071657787977, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=CN, label=图17, caption=
各距离激光测距与视觉测距对比图, figureFileSmall=MPT6j8MVmhPA8vm2AQQ6Vw==, figureFileBig=qlX37Tb4WPKYSZxnb/ALXg==, tableContent=null), ArticleFig(id=1263819071800394314, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=EN, label=Fig.18, caption=
Comparison of laser ranging and visual ranging during single docking process, figureFileSmall=s5pFUl6NxUimTXIWhQSj8w==, figureFileBig=kNvveZgl43O0dzUb26PdzA==, tableContent=null), ArticleFig(id=1263819072114967116, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=CN, label=图18, caption=
单次对接过程激光测距与视觉测距对比图, figureFileSmall=s5pFUl6NxUimTXIWhQSj8w==, figureFileBig=kNvveZgl43O0dzUb26PdzA==, tableContent=null), ArticleFig(id=1263819072253379150, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=EN, label=Tab.1, caption=
Performance specifications of navigation sensors
, figureFileSmall=null, figureFileBig=null, tableContent=
| 传感器 | 作用距离/m | 导航精度 | 精度影响因素 |
| 声学 | 2000 | 低 | 信号延迟,噪声干扰 |
| 电磁 | <20~30 | 较高 | 设备本身的电磁噪声,外磁场干扰 |
| 光学 | <10~28 | 较高 | 背景光变化,海水浑浊程度,光源强弱 |
| 视觉 | <10~28 | 较高 | 分辨率,镜头畸变 |
), ArticleFig(id=1263819072454705744, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=CN, label=表1, caption=
导航传感器性能列表
, figureFileSmall=null, figureFileBig=null, tableContent=
| 传感器 | 作用距离/m | 导航精度 | 精度影响因素 |
| 声学 | 2000 | 低 | 信号延迟,噪声干扰 |
| 电磁 | <20~30 | 较高 | 设备本身的电磁噪声,外磁场干扰 |
| 光学 | <10~28 | 较高 | 背景光变化,海水浑浊程度,光源强弱 |
| 视觉 | <10~28 | 较高 | 分辨率,镜头畸变 |
), ArticleFig(id=1263819072651838033, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=EN, label=Tab.2, caption=
Calculation results of evaluation metrics
, figureFileSmall=null, figureFileBig=null, tableContent=
| 算法 | QUIQM | QUCIQE |
| 暗通道先验去雾算法 | 0.454001 | 14.665210 |
| HE算法 | 0.623152 | 19.151030 |
| MSRCR算法 | 0.418782 | 7.980382 |
), ArticleFig(id=1263819072773472851, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=CN, label=表2, caption=
评估指标计算结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 算法 | QUIQM | QUCIQE |
| 暗通道先验去雾算法 | 0.454001 | 14.665210 |
| HE算法 | 0.623152 | 19.151030 |
| MSRCR算法 | 0.418782 | 7.980382 |
), ArticleFig(id=1263819074463777365, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=EN, label=Tab.3, caption=
Calculation results of evaluation metrics
, figureFileSmall=null, figureFileBig=null, tableContent=
| 算法 | QPSNR | QSSIM | QLPIPS |
| 传统Canny检测 | 18.217 315 | 0.894 842 | 0.751 748 |
| 改进的Canny检测 | >21.751 180 | >0.938 221 | 0.497 714 |
), ArticleFig(id=1263819074585412184, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=CN, label=表3, caption=
评估指标计算结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 算法 | QPSNR | QSSIM | QLPIPS |
| 传统Canny检测 | 18.217 315 | 0.894 842 | 0.751 748 |
| 改进的Canny检测 | >21.751 180 | >0.938 221 | 0.497 714 |
), ArticleFig(id=1263819074690269785, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=EN, label=Tab.4, caption=
Absorption and scattering coefficients in different water bodies
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| 水域类型 | 吸收系数 | 散射系数 |
| 纯净海水 | 0.114 | 0.037 |
| 海岸海水 | 0.179 | 0.220 |
| 码头海水 | 0.366 | 1.829 |
), ArticleFig(id=1263819074811904603, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=CN, label=表4, caption=
不同水域吸收和散射系数
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| 水域类型 | 吸收系数 | 散射系数 |
| 纯净海水 | 0.114 | 0.037 |
| 海岸海水 | 0.179 | 0.220 |
| 码头海水 | 0.366 | 1.829 |
), ArticleFig(id=1263819074958705244, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263818968280777311, language=EN, label=Tab.5, caption=
Parameters of underwater camera
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| 参数 | 数值 |
| 焦距/mm | 3.6 |
| 分辨率/px | 1 920×1 080 |
| 水平视野角/(°) | 142 |
| 垂直视野角/(°) | 102 |
| 防水等级 | IP68 |
| 工作温度/(°C) | −20~55 |
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水下相机参数
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| 参数 | 数值 |
| 焦距/mm | 3.6 |
| 分辨率/px | 1 920×1 080 |
| 水平视野角/(°) | 142 |
| 垂直视野角/(°) | 102 |
| 防水等级 | IP68 |
| 工作温度/(°C) | −20~55 |
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Intrinsic parameters and geometric distortion coefficients of the camera
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| 相机内参和几何畸变系数 | 数值(水下) |
| 焦距${f_x}$/px | 1 696.8 |
| 焦距${f_y}$/px | 1 686.7 |
| 主点${u_0}$/px | 1 156.5 |
| 主点${v_0}$/px | 1 115.1 |
| 径向畸变$ {k_v}_1 $ | −0.062 8 |
| 径向畸变$ {k_v}_2 $ | −0.087 8 |
| 切向畸变${k_u}_1$ | 0 |
| 切向畸变${k_u}_2$ | 0 |
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相机内参和几何畸变系数
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| 相机内参和几何畸变系数 | 数值(水下) |
| 焦距${f_x}$/px | 1 696.8 |
| 焦距${f_y}$/px | 1 686.7 |
| 主点${u_0}$/px | 1 156.5 |
| 主点${v_0}$/px | 1 115.1 |
| 径向畸变$ {k_v}_1 $ | −0.062 8 |
| 径向畸变$ {k_v}_2 $ | −0.087 8 |
| 切向畸变${k_u}_1$ | 0 |
| 切向畸变${k_u}_2$ | 0 |
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Data analysis of laser ranging and visual ranging at various distances
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| 测距条件 | 均值/mm | 均方根误差/mm |
| 10 m视觉测距 | 9 923.21 | 277.43 |
| 10 m激光测距 | 10 103.46 |
| 6 m视觉测距 | 5 914.39 | 163.83 |
| 6 m激光测距 | 6 034.75 |
| 2 m视觉测距 | 1 963.47 | 76.44 |
| 2 m激光测距 | 2 014.68 |
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各距离激光测距与视觉测距数据分析
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| 测距条件 | 均值/mm | 均方根误差/mm |
| 10 m视觉测距 | 9 923.21 | 277.43 |
| 10 m激光测距 | 10 103.46 |
| 6 m视觉测距 | 5 914.39 | 163.83 |
| 6 m激光测距 | 6 034.75 |
| 2 m视觉测距 | 1 963.47 | 76.44 |
| 2 m激光测距 | 2 014.68 |
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