Abstract
Very high-resolution (VHR) stereo satellite images provide detailed spatial and spectral information for detecting and monitoring artificial or natural objects. This information can also be used for object-based change detection. This study aims to reveal the potential of three-dimensional (3D) information generated from VHR stereo satellite images to determine the physical changes that may occur on Gordion tumuli. For this purpose, point cloud data were generated from WorldView-3 and KOMPSAT-3 stereo satellite images. The accuracy of these datasets was tested using 161 check points (CPs). On the other hand, digital surface models (DSMs) generated from VHR stereo satellite images were used for object-based modelling of tumuli. The vertical accuracy of these DSMs was tested by comparing them with reference DSMs extracted from Unmanned Aerial System (UAS) images. As a result of the vertical accuracy assessment of the point cloud data, 0.16 m and 0.53 m root mean square error (RMSE) values were obtained for WorldView-3 and KOMPSAT-3 data, respectively. The average RMSE values obtained as a result of the model-based comparison of DSMs are 0.28 m for WorldView-3 and 0.57 m for KOMPSAT-3. These results demonstrate that the sub-metre level physical changes occurring on tumuli can be determined by VHR stereo satellite images.
| Original language | English |
|---|---|
| Pages (from-to) | 7239-7269 |
| Number of pages | 31 |
| Journal | International Journal of Remote Sensing |
| Volume | 42 |
| Issue number | 19 |
| DOIs | |
| Publication status | Published - 2021 |
Bibliographical note
Publisher Copyright:© 2021 Informa UK Limited, trading as Taylor & Francis Group.
Funding
This work was supported by the Scientific and Technological Research Council of Turkey (Project no: 119Y283). The authors are very grateful to the editor and reviewers for their constructive comments that have an important role in further improving this work. The authors thank Alperen Kaya for his contribution to land surveys. This work was supported by the T?rkiye Bilimsel ve Teknolojik Ara?tirma Kurumu (Project no: 119Y283);<#funding-source;>Scientific and Technological Research Council of Turkey (T?BITAK)</#funding-source;> [<#award-id;>119Y283</#award-id;>]. This work was supported by the Scientific and Technological Research Council of Turkey (Project no: 119Y283). The authors are very grateful to the editor and reviewers for their constructive comments that have an important role in further improving this work. The authors thank Alperen Kaya for his contribution to land surveys.
| Funders | Funder number |
|---|---|
| >Scientific and Technological Research Council of Turkey | |
| T?rkiye Bilimsel ve Teknolojik Ara?tirma Kurumu | |
| Türkiye Bilimsel ve Teknolojik Araştirma Kurumu | 119Y283 |