OBJECT BASED BUILDING EXTRACTION AND BUILDING PERIOD ESTIMATION FROM UNMANNED AERIAL VEHICLE DATA

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences

Resul Comert^1¹  Onur Kaplan^2² 

[1] Department of Geomatics Engineering, Faculty of Engineering and Natural Sciences, Gumushane University, Gumushane, Turkey^1;Earth and Space Sciences Institute, Anadolu University 26555 Eskisehir, Turkey^2

关键词: Building Period;    Building Height;    UAV;    Object-Based Image Analysis;   

DOI  :  10.5194/isprs-annals-IV-3-71-2018

学科分类：地球科学(综合)

来源: Copernicus Publications

【 摘 要 】

The aim of this study is to examine whether it is possible to estimate the building periods with respect to the building heights in the urban scale seismic performance assessment studies by using the building height retrieved from the unmanned aerial vehicle (UAV) data. For this purpose, a small area, which includes eight residential reinforced concrete buildings, was selected in Eskisehir (Turkey) city center. In this paper, the possibilities of obtaining the building heights that are used in the estimation of building periods from UAV based data, have been investigated. The investigations were carried out in 3 stages; (i) Building boundary extraction with Object Based Image Analysis (OBIA), (ii) height calculation for buildings of interest from nDSM and accuracy assessment with the terrestrial survey. (iii) Estimation of building period using height information. The average difference between the periods estimated according to the heights obtained from field measurements and from the UAV data is 2.86 % and the maximum difference is 13.2 %. Results of this study have shown that the building heights retrieved from the UAV data can be used in the building period estimation in the urban scale vulnerability assessments.

【 授权许可】

CC BY