A volumetric change detection framework using UAV oblique photogrammetry–a case study of ultra-high-resolution monitoring of progressive building collapse  

作　　者：Ningli Xu Debao Huang Shuang Song Xiao Ling Chris Strasbaugh Alper Yilmaz Halil Sezen Rongjun Qin 

机构地区：[1]Geospatial Data Analytics Lab,The Ohio State University,Columbus,OH,USA [2]Photogrammetric Computer Vision Lab,The Ohio State University,Columbus,OH,USA [3]Department of Civil,Environmental and Geodetic Engineering,The Ohio State University,Columbus,OH,USA [4]Department of Electrical and Computer Engineering,The Ohio State University,Columbus,OH,USA [5]Translational Data Analytics Institute,The Ohio State University,Columbus,OH,USA [6]Engineering Technology Services,The Ohio State University,Columbus,OH,USA

出　　处：《International Journal of Digital Earth》2021年第11期1705-1720,共16页国际数字地球学报（英文）

基　　金：supported by the National Science Foundation[grant number 2036193];supported in part by Office of Naval Research[grant numbers N00014-17-l-2928,N00014-20-1-2141].

摘　　要：In this paper,we present a case study that performs an unmanned aerial vehicle(UAV)based fine-scale 3D change detection and monitoring of progressive collapse performance of a building during a demolition event.Multi-temporal oblique photogrammetry images are collected with 3D point clouds generated at different stages of the demolition.The geometric accuracy of the generated point clouds has been evaluated against both airborne and terrestrial LiDAR point clouds,achieving an average distance of 12 cm and 16 cm for roof and façade respectively.We propose a hierarchical volumetric change detection framework that unifies multi-temporal UAV images for pose estimation(free of ground control points),reconstruction,and a coarse-to-fine 3D density change analysis.This work has provided a solution capable of addressing change detection on full 3D time-series datasets where dramatic scene content changes are presented progressively.Our change detection results on the building demolition event have been evaluated against the manually marked ground-truth changes and have achieved an F-1 score varying from 0.78 to 0.92,with consistently high precision(0.92–0.99).Volumetric changes through the demolition progress are derived from change detection and have been shown to favorably reflect the qualitative and quantitative building demolition progression.

关 键 词：3D change detection multitemporal data registration oblique photogrammetry 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]