FRONTISPIECE. Processing results of “MetaBoard”. The proposed calibration board “MetaBoard” is detected and processed in various calibration environments (Dong et al., this issue). The real images are captured by a singlelens reflex camera, a camera with a wideangle lens and a fisheye camera. The corresponding simulation data is rendered by Blender. Top: Target detection comparison under different illuminations. The proposed learningbased target detection algorithm is compared with traditional methods (i.e., OpenCV). Bottom: Board processing results in various scenarios. The proposed method can process the board under different distortions, tilted angles and simple or complex environments, where those scenarios are challenging for traditional methods.
{"title":"Frontispiece. Processing results of “Meta‐Board”.","authors":"Yongjun Zhang","doi":"10.1111/phor.12465","DOIUrl":"https://doi.org/10.1111/phor.12465","url":null,"abstract":"FRONTISPIECE. Processing results of “MetaBoard”. The proposed calibration board “MetaBoard” is detected and processed in various calibration environments (Dong et al., this issue). The real images are captured by a singlelens reflex camera, a camera with a wideangle lens and a fisheye camera. The corresponding simulation data is rendered by Blender. Top: Target detection comparison under different illuminations. The proposed learningbased target detection algorithm is compared with traditional methods (i.e., OpenCV). Bottom: Board processing results in various scenarios. The proposed method can process the board under different distortions, tilted angles and simple or complex environments, where those scenarios are challenging for traditional methods.","PeriodicalId":22881,"journal":{"name":"The Photogrammetric Record","volume":"51 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139345278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The Photogrammetric RecordVolume 38, Issue 183 p. 450-450 NOTES 2nd International Conference on Advanced Remote Sensing and the 2023 Wuhan Remote Sensing Week First published: 28 September 2023 https://doi.org/10.1111/phor.1_12458Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume38, Issue183September 2023Pages 450-450 RelatedInformation
The Photogrammetric RecordVolume 38, Issue 183 p. 450-450 NOTES第二届国际高级遥感会议和2023武汉遥感周首次出版:2023年9月28日https://doi.org/10.1111/phor.1_12458Read全文taboutpdf ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare全文accessShare全文accessShare全文accessShare请查看我们的使用条款和条件,并勾选下面的复选框分享文章的全文版本。我已经阅读并接受了Wiley在线图书馆使用共享链接的条款和条件,请使用下面的链接与您的朋友和同事分享本文的全文版本。学习更多的知识。复制URL共享链接共享一个emailfacebooktwitterlinkedinreddit微信本文无摘要vol . 38, Issue183September 2023页450-450
{"title":"2nd International Conference on Advanced Remote Sensing and the 2023 Wuhan Remote Sensing Week","authors":"","doi":"10.1111/phor.1_12458","DOIUrl":"https://doi.org/10.1111/phor.1_12458","url":null,"abstract":"The Photogrammetric RecordVolume 38, Issue 183 p. 450-450 NOTES 2nd International Conference on Advanced Remote Sensing and the 2023 Wuhan Remote Sensing Week First published: 28 September 2023 https://doi.org/10.1111/phor.1_12458Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume38, Issue183September 2023Pages 450-450 RelatedInformation","PeriodicalId":22881,"journal":{"name":"The Photogrammetric Record","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135587988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The Photogrammetric RecordVolume 38, Issue 183 p. 452-452 NOTES 2023 Asian Conference on Remote Sensing First published: 28 September 2023 https://doi.org/10.1111/phor.5_12458Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume38, Issue183September 2023Pages 452-452 RelatedInformation
The Photogrammetric RecordVolume 38, Issue 183 p. 452-452 NOTES 2023亚洲遥感会议首次出版:2023年9月28日https://doi.org/10.1111/phor.5_12458Read全文taboutpdf ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare全文accessShare全文accessShare全文accessShare请查看我们的使用条款和条件,并勾选下面的复选框分享文章的全文版本。我已经阅读并接受了Wiley在线图书馆使用共享链接的条款和条件,请使用下面的链接与您的朋友和同事分享本文的全文版本。学习更多的知识。复制URL共享链接共享一个emailfacebooktwitterlinkedinreddit微信本文无摘要vol . 38, Issue183September 2023页452-452
{"title":"2023 Asian Conference on Remote Sensing","authors":"","doi":"10.1111/phor.5_12458","DOIUrl":"https://doi.org/10.1111/phor.5_12458","url":null,"abstract":"The Photogrammetric RecordVolume 38, Issue 183 p. 452-452 NOTES 2023 Asian Conference on Remote Sensing First published: 28 September 2023 https://doi.org/10.1111/phor.5_12458Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume38, Issue183September 2023Pages 452-452 RelatedInformation","PeriodicalId":22881,"journal":{"name":"The Photogrammetric Record","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135587993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"2nd Workshop on Evaluation and Benchmark of Sensors and Systems in Photogrammetry and Remote Sensing","authors":"","doi":"10.1111/phor.4_12458","DOIUrl":"https://doi.org/10.1111/phor.4_12458","url":null,"abstract":"","PeriodicalId":22881,"journal":{"name":"The Photogrammetric Record","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135587989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The Photogrammetric RecordVolume 38, Issue 183 p. 453-453 NOTES 8th International Conference on Geoinformation Advances Published First published: 28 September 2023 https://doi.org/10.1111/phor.8_12458Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume38, Issue183September 2023Pages 453-453 RelatedInformation
The Photogrammetric RecordVolume 38, Issue 183 p. 453-453 NOTES第八届国际地理信息进展会议出版首次出版:2023年9月28日https://doi.org/10.1111/phor.8_12458Read全文taboutpdf ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare给予accessShare全文accessShare全文accessShare全文accessShare请查看我们的使用条款和条件,并在下面的复选框中分享文章的全文版本。我已经阅读并接受了Wiley在线图书馆使用共享链接的条款和条件,请使用下面的链接与您的朋友和同事分享本文的全文版本。学习更多的知识。复制URL共享链接共享一个emailfacebooktwitterlinkedinreddit微信本文无摘要vol . 38, Issue183September 2023Pages 453-453
{"title":"8th International Conference on Geoinformation Advances Published","authors":"","doi":"10.1111/phor.8_12458","DOIUrl":"https://doi.org/10.1111/phor.8_12458","url":null,"abstract":"The Photogrammetric RecordVolume 38, Issue 183 p. 453-453 NOTES 8th International Conference on Geoinformation Advances Published First published: 28 September 2023 https://doi.org/10.1111/phor.8_12458Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume38, Issue183September 2023Pages 453-453 RelatedInformation","PeriodicalId":22881,"journal":{"name":"The Photogrammetric Record","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135587992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Many modelling applications require 3D meshes that should be generated from filtered/cleaned point clouds. This paper proposes a methodology for filtering of terrestrial laser scanner (TLS)‐derived point clouds, consisting of two main parts: an anisotropic point error model and the subsequent decimation steps for elimination of low‐quality points. The point error model can compute the positional quality of any point in the form of error ellipsoids. It is formulated as a function of the angular/mechanical stability, sensor‐to‐object distance, laser beam's incidence angle and surface reflectivity, which are the most dominant error sources. In a block of several co‐registered point clouds, some parts of the target object are sampled by multiple scans with different positional quality patterns. This situation results in redundant data. The proposed decimation steps removes this redundancy by selecting only the points with the highest positional quality. Finally, the Good, Bad, and the Better algorithm, based on the ray‐tracing concept, was developed to remove the remaining redundancy due to the Moiré effects. The resulting point cloud consists of only the points with the highest positional quality while reducing the number of points by factor 10. This novel approach resulted in final surface meshes that are accurate, contain predefined level of random errors and require almost no manual intervention.
{"title":"A point cloud filtering method based on anisotropic error model","authors":"M. Ozendi, D. Akca, H. Topan","doi":"10.1111/phor.12460","DOIUrl":"https://doi.org/10.1111/phor.12460","url":null,"abstract":"Many modelling applications require 3D meshes that should be generated from filtered/cleaned point clouds. This paper proposes a methodology for filtering of terrestrial laser scanner (TLS)‐derived point clouds, consisting of two main parts: an anisotropic point error model and the subsequent decimation steps for elimination of low‐quality points. The point error model can compute the positional quality of any point in the form of error ellipsoids. It is formulated as a function of the angular/mechanical stability, sensor‐to‐object distance, laser beam's incidence angle and surface reflectivity, which are the most dominant error sources. In a block of several co‐registered point clouds, some parts of the target object are sampled by multiple scans with different positional quality patterns. This situation results in redundant data. The proposed decimation steps removes this redundancy by selecting only the points with the highest positional quality. Finally, the Good, Bad, and the Better algorithm, based on the ray‐tracing concept, was developed to remove the remaining redundancy due to the Moiré effects. The resulting point cloud consists of only the points with the highest positional quality while reducing the number of points by factor 10. This novel approach resulted in final surface meshes that are accurate, contain predefined level of random errors and require almost no manual intervention.","PeriodicalId":22881,"journal":{"name":"The Photogrammetric Record","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76718262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The Photogrammetric RecordVolume 38, Issue 183 p. 451-451 NOTES Geoinformation Technologies for Cultural Heritage Documentation (International Summer School) First published: 28 September 2023 https://doi.org/10.1111/phor.2_12458Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume38, Issue183September 2023Pages 451-451 RelatedInformation
The Photogrammetric RecordVolume 38, Issue 183 p. 451-451 NOTES地理信息技术用于文化遗产文献(国际暑期学校)首次出版:2023年9月28日https://doi.org/10.1111/phor.2_12458Read全文taboutpdf ToolsRequest permissionExport citation添加到favoritesTrack citation ShareShare给予accessShare全文accessShare全文accessShare全文accessShare请查看我们的使用条款和条件,并在下面的复选框中分享文章的全文版本。我已经阅读并接受了Wiley在线图书馆使用共享链接的条款和条件,请使用下面的链接与您的朋友和同事分享本文的全文版本。学习更多的知识。复制URL共享链接共享一个emailfacebooktwitterlinkedinreddit微信本文无摘要vol . 38, Issue183September 2023页451-451
{"title":"Geoinformation Technologies for Cultural Heritage Documentation (International Summer School)","authors":"","doi":"10.1111/phor.2_12458","DOIUrl":"https://doi.org/10.1111/phor.2_12458","url":null,"abstract":"The Photogrammetric RecordVolume 38, Issue 183 p. 451-451 NOTES Geoinformation Technologies for Cultural Heritage Documentation (International Summer School) First published: 28 September 2023 https://doi.org/10.1111/phor.2_12458Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume38, Issue183September 2023Pages 451-451 RelatedInformation","PeriodicalId":22881,"journal":{"name":"The Photogrammetric Record","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135587987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The Photogrammetric RecordVolume 38, Issue 183 p. 453-453 NOTES The 2nd Ramon International Geospatial Intelligence 360 Conference First published: 28 September 2023 https://doi.org/10.1111/phor.7_12458Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume38, Issue183September 2023Pages 453-453 RelatedInformation
The Photogrammetric RecordVolume 38, Issue 183 p. 453-453 NOTES第二届Ramon国际地理空间情报360会议首次发布:2023年9月28日https://doi.org/10.1111/phor.7_12458Read全文taboutpdf ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare全文accessShare全文accessShare全文accessShare请查看我们的使用条款和条件,并勾选下面的复选框分享文章的全文版本。我已经阅读并接受了Wiley在线图书馆使用共享链接的条款和条件,请使用下面的链接与您的朋友和同事分享本文的全文版本。学习更多的知识。复制URL共享链接共享一个emailfacebooktwitterlinkedinreddit微信本文无摘要vol . 38, Issue183September 2023Pages 453-453
{"title":"The 2nd Ramon International Geospatial Intelligence 360 Conference","authors":"","doi":"10.1111/phor.7_12458","DOIUrl":"https://doi.org/10.1111/phor.7_12458","url":null,"abstract":"The Photogrammetric RecordVolume 38, Issue 183 p. 453-453 NOTES The 2nd Ramon International Geospatial Intelligence 360 Conference First published: 28 September 2023 https://doi.org/10.1111/phor.7_12458Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume38, Issue183September 2023Pages 453-453 RelatedInformation","PeriodicalId":22881,"journal":{"name":"The Photogrammetric Record","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135587991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The Photogrammetric RecordVolume 38, Issue 183 p. 452-453 NOTES Post-ACRS ISPRS SC Summer School 2023 First published: 28 September 2023 https://doi.org/10.1111/phor.6_12458Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume38, Issue183September 2023Pages 452-453 RelatedInformation
The Photogrammetric RecordVolume 38, Issue 183 p. 452-453 NOTES后acrs ISPRS SC暑期学校2023首次发布:2023年9月28日https://doi.org/10.1111/phor.6_12458Read全文taboutpdf ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare给予accessShare全文accessShare全文accessShare全文accessShare请查看我们的使用条款和条件,并在下面的复选框中分享文章的全文版本。我已经阅读并接受了Wiley在线图书馆使用共享链接的条款和条件,请使用下面的链接与您的朋友和同事分享本文的全文版本。学习更多的知识。复制URL共享链接共享一个emailfacebooktwitterlinkedinreddit微信本文无摘要vol . 38, Issue183September 2023 page 452-453
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M. Kirsch, M. Mavroudi, Samuel T. Thiele, S. Lorenz, Laura Tusa, R. Booysen, Erik Herrmann, Ayoub Fatihi, R. Möckel, Thomas Dittrich, R. Gloaguen
The inherent complexity of underground mining requires highly selective ore extraction and adaptive mine planning. Repeated geological face mapping and reinterpretation throughout mine life is therefore routine in underground mines. Hyperspectral imaging (HSI) has successfully been applied to enhance geological mapping in surface mining environments, but remains a largely unexplored opportunity in underground operations due to challenges associated with illumination, wet surfaces and data corrections. In this study, we propose a workflow that paves the way for the operational use of HSI in active underground mines. In a laboratory set‐up, we evaluated different hyperspectral sensors and lighting set‐ups as well as the effect of surface moisture. We then acquired hyperspectral data in an underground mine of the Zinnwald/Cínovec Sn‐W‐Li greisen‐type deposit in Germany. These data were corrected for illumination effects, back‐projected into three dimensions and then used to map mineral abundance and estimate Li content across the mine face. We validated the results with handheld laser‐induced breakdown spectroscopy. Despite remaining challenges, we hope this study will help establish hyperspectral sensors in the extractive industry as a means to increase the volume and efficiency of raw material supply, advance digitalisation, and reduce the environmental footprint and other risks associated with underground mining.
地下开采固有的复杂性要求高度选择性的矿石开采和适应性的矿山规划。因此,在整个矿山生命周期中,重复的地质面填图和重新解释是地下矿山的常规工作。高光谱成像(HSI)已经成功地应用于地表采矿环境的地质测绘,但由于光照、潮湿表面和数据校正等方面的挑战,在地下作业中,HSI仍然是一个很大的未开发的机会。在这项研究中,我们提出了一个工作流,为在活跃的地下矿山中实际使用HSI铺平了道路。在实验室设置中,我们评估了不同的高光谱传感器和照明设置以及表面湿度的影响。然后,我们在德国Zinnwald/Cínovec Sn - W - Li greisen - type矿床的地下矿山中获得了高光谱数据。这些数据经过光照效果校正,反向投影成三维,然后用于绘制矿产丰度图,并估算整个矿区的锂含量。我们用手持式激光诱导击穿光谱验证了结果。尽管仍然存在挑战,我们希望这项研究将有助于在采掘业建立高光谱传感器,作为增加原材料供应数量和效率、推进数字化、减少环境足迹和与地下采矿相关的其他风险的一种手段。
{"title":"Underground hyperspectral outcrop scanning for automated mine‐face mapping: The lithium deposit of Zinnwald/Cínovec","authors":"M. Kirsch, M. Mavroudi, Samuel T. Thiele, S. Lorenz, Laura Tusa, R. Booysen, Erik Herrmann, Ayoub Fatihi, R. Möckel, Thomas Dittrich, R. Gloaguen","doi":"10.1111/phor.12457","DOIUrl":"https://doi.org/10.1111/phor.12457","url":null,"abstract":"The inherent complexity of underground mining requires highly selective ore extraction and adaptive mine planning. Repeated geological face mapping and reinterpretation throughout mine life is therefore routine in underground mines. Hyperspectral imaging (HSI) has successfully been applied to enhance geological mapping in surface mining environments, but remains a largely unexplored opportunity in underground operations due to challenges associated with illumination, wet surfaces and data corrections. In this study, we propose a workflow that paves the way for the operational use of HSI in active underground mines. In a laboratory set‐up, we evaluated different hyperspectral sensors and lighting set‐ups as well as the effect of surface moisture. We then acquired hyperspectral data in an underground mine of the Zinnwald/Cínovec Sn‐W‐Li greisen‐type deposit in Germany. These data were corrected for illumination effects, back‐projected into three dimensions and then used to map mineral abundance and estimate Li content across the mine face. We validated the results with handheld laser‐induced breakdown spectroscopy. Despite remaining challenges, we hope this study will help establish hyperspectral sensors in the extractive industry as a means to increase the volume and efficiency of raw material supply, advance digitalisation, and reduce the environmental footprint and other risks associated with underground mining.","PeriodicalId":22881,"journal":{"name":"The Photogrammetric Record","volume":"91 1","pages":"408 - 429"},"PeriodicalIF":0.0,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77268825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}