VoxFall: Non-parametric volumetric change detection for rockfalls

IF 6.9 1区 工程技术 Q1 ENGINEERING, GEOLOGICAL
Ioannis Farmakis, Davide Ettore Guccione, Klaus Thoeni, Anna Giacomini
{"title":"VoxFall: Non-parametric volumetric change detection for rockfalls","authors":"Ioannis Farmakis,&nbsp;Davide Ettore Guccione,&nbsp;Klaus Thoeni,&nbsp;Anna Giacomini","doi":"10.1016/j.enggeo.2025.108045","DOIUrl":null,"url":null,"abstract":"<div><div>Surveying methods such as digital photogrammetry and laser scanning have been used to detect surficial changes by comparing two 3D models. This study deals with the manipulation of 3D digital models of rock slopes within the scope of rockfall monitoring which includes the objective of detecting and quantifying rockfall events as discrete blocks. Current change detection methods for rockfalls are based on distance computation between two rock slope models complemented successively by spatial clustering and cluster shape reconstruction routines, and include severe challenges associated with the profound interdependence of parameter tuning between the different steps. To solve these issues, we introduce a new algorithm – VoxFall – that does not rely on distance computation and its objective is to eliminate user subjectivity by launching a new tool for rockfall monitoring that would only be controlled by the quality of the input data. The method treats the two input models as a single scene and applies two steps: 1) fitting an occupancy voxel grid of a resolution defined by the registration error; 2) empty space clustering and volume computation based on voxel adjacency. Comparison with existing methods across both synthetic and real rock slope datasets demonstrates the sensitivity of the distance-based methods and the dependency on the input parameters compared to the results of our method. Application on original data predicts almost perfectly the rockfall volume (0.3 % difference) within an arrangement of recorded rockfall events. We provide evidence of current techniques requiring pre-existing knowledge of rockfall activity to tune them while VoxFall comprises a unified framework that enables direct accurate volume detection and clustering with no user intervention. The algorithm has been implemented in an open-source software package.</div></div>","PeriodicalId":11567,"journal":{"name":"Engineering Geology","volume":"352 ","pages":"Article 108045"},"PeriodicalIF":6.9000,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Engineering Geology","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0013795225001413","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, GEOLOGICAL","Score":null,"Total":0}
引用次数: 0

Abstract

Surveying methods such as digital photogrammetry and laser scanning have been used to detect surficial changes by comparing two 3D models. This study deals with the manipulation of 3D digital models of rock slopes within the scope of rockfall monitoring which includes the objective of detecting and quantifying rockfall events as discrete blocks. Current change detection methods for rockfalls are based on distance computation between two rock slope models complemented successively by spatial clustering and cluster shape reconstruction routines, and include severe challenges associated with the profound interdependence of parameter tuning between the different steps. To solve these issues, we introduce a new algorithm – VoxFall – that does not rely on distance computation and its objective is to eliminate user subjectivity by launching a new tool for rockfall monitoring that would only be controlled by the quality of the input data. The method treats the two input models as a single scene and applies two steps: 1) fitting an occupancy voxel grid of a resolution defined by the registration error; 2) empty space clustering and volume computation based on voxel adjacency. Comparison with existing methods across both synthetic and real rock slope datasets demonstrates the sensitivity of the distance-based methods and the dependency on the input parameters compared to the results of our method. Application on original data predicts almost perfectly the rockfall volume (0.3 % difference) within an arrangement of recorded rockfall events. We provide evidence of current techniques requiring pre-existing knowledge of rockfall activity to tune them while VoxFall comprises a unified framework that enables direct accurate volume detection and clustering with no user intervention. The algorithm has been implemented in an open-source software package.
VoxFall:岩崩的非参数体积变化检测
数字摄影测量和激光扫描等测量方法已被用于通过比较两个三维模型来检测地表变化。本研究涉及岩崩监测范围内岩石边坡三维数字模型的处理,其目标包括将岩崩事件作为离散块进行检测和量化。目前的岩崩变化检测方法是基于两个岩质边坡模型之间的距离计算,依次补充空间聚类和聚类形状重建例程,并且不同步骤之间的参数调整相互依赖,这给岩崩检测带来了严峻的挑战。为了解决这些问题,我们引入了一种新的算法——VoxFall——它不依赖于距离计算,其目标是通过推出一种新的岩崩监测工具来消除用户的主观性,这种工具只受输入数据质量的控制。该方法将两个输入模型视为一个场景,并应用两个步骤:1)拟合由配准误差定义的分辨率的占用体素网格;2)基于体素邻接的空白空间聚类和体积计算。与现有方法在合成和真实岩石边坡数据集上的比较表明,与我们的方法相比,基于距离的方法的敏感性和对输入参数的依赖性。应用原始数据几乎可以完美地预测岩崩的体积(0.3%的差异)在记录的岩崩事件的安排。我们提供了现有技术的证据,这些技术需要预先存在的岩崩活动知识来调整它们,而VoxFall包含一个统一的框架,可以在没有用户干预的情况下进行直接准确的体积检测和聚类。该算法已在一个开源软件包中实现。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Engineering Geology
Engineering Geology 地学-地球科学综合
CiteScore
13.70
自引率
12.20%
发文量
327
审稿时长
5.6 months
期刊介绍: Engineering Geology, an international interdisciplinary journal, serves as a bridge between earth sciences and engineering, focusing on geological and geotechnical engineering. It welcomes studies with relevance to engineering, environmental concerns, and safety, catering to engineering geologists with backgrounds in geology or civil/mining engineering. Topics include applied geomorphology, structural geology, geophysics, geochemistry, environmental geology, hydrogeology, land use planning, natural hazards, remote sensing, soil and rock mechanics, and applied geotechnical engineering. The journal provides a platform for research at the intersection of geology and engineering disciplines.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信