EN
TR
Examining the accuracy of DEM of difference and 3D point cloud comparison methods: Open pit mine case study
Öz
With the widespread use of unmanned aerial vehicles (UAV), high-accuracy photogrammetric mapping studies can be carried out over small areas with cost-effective simple systems. By comparing images obtained at different epochs, 3 Dimensional (3D) change detection studies can be easily performed. Digital surface models (DSM) are obtained from the point cloud (PC) with the processing software, their differences are taken, and temporal changes can thus be modeled. This method is known as DEM (DSM) of Difference (DoD) in practice and has low computational cost. Recently, with the availability and accessibility of powerful computers capable of processing increasing amounts of data, 3D change detection studies can be performed directly with raw PCs without converting them to DSM. Methodologically, DoD and PC-based analysis strategies have different evaluation stages and outputs. With DoD, only changes in the vertical direction can be revealed, while PC comparison methods can produce the 3D change vector. In this study, the well-established DoD method and Multiscale Model-to-Model Cloud Comparison (M3C2), one of the 3D PC comparison methods, were compared. The accuracy of the methods was tested at an active open pit mine site where intensive excavation works have been undertaken. Standard deviation values were found below 11 cm with M3C2 distance and DoD differences obtained from UAV images having average ground sampling distances (GSD) of 5.8-6.9 cm. Only about 1% of the differences were categorized as outliers.
Anahtar Kelimeler
Teşekkür
We would like to express our sincere gratitude to FİDES Mühendislik for providing access to the UAV images used in this research.
Kaynakça
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Ayrıntılar
Birincil Dil
İngilizce
Konular
Fotogrametri
Bölüm
Araştırma Makalesi
Erken Görünüm Tarihi
3 Nisan 2024
Yayımlanma Tarihi
3 Mayıs 2024
Gönderilme Tarihi
15 Ocak 2024
Kabul Tarihi
28 Şubat 2024
Yayımlandığı Sayı
Yıl 2024 Cilt: 11 Sayı: 1
APA
Özdaş, N., Koçak, M. G., & Karakış, S. (2024). Examining the accuracy of DEM of difference and 3D point cloud comparison methods: Open pit mine case study. Jeodezi ve Jeoinformasyon Dergisi, 11(1), 41-50. https://doi.org/10.9733/JGG.2024R0004.E
AMA
1.Özdaş N, Koçak MG, Karakış S. Examining the accuracy of DEM of difference and 3D point cloud comparison methods: Open pit mine case study. hkmojjd. 2024;11(1):41-50. doi:10.9733/JGG.2024R0004.E
Chicago
Özdaş, Nilüfer, Mehmet Güven Koçak, ve Serkan Karakış. 2024. “Examining the accuracy of DEM of difference and 3D point cloud comparison methods: Open pit mine case study”. Jeodezi ve Jeoinformasyon Dergisi 11 (1): 41-50. https://doi.org/10.9733/JGG.2024R0004.E.
EndNote
Özdaş N, Koçak MG, Karakış S (01 Mayıs 2024) Examining the accuracy of DEM of difference and 3D point cloud comparison methods: Open pit mine case study. Jeodezi ve Jeoinformasyon Dergisi 11 1 41–50.
IEEE
[1]N. Özdaş, M. G. Koçak, ve S. Karakış, “Examining the accuracy of DEM of difference and 3D point cloud comparison methods: Open pit mine case study”, hkmojjd, c. 11, sy 1, ss. 41–50, May. 2024, doi: 10.9733/JGG.2024R0004.E.
ISNAD
Özdaş, Nilüfer - Koçak, Mehmet Güven - Karakış, Serkan. “Examining the accuracy of DEM of difference and 3D point cloud comparison methods: Open pit mine case study”. Jeodezi ve Jeoinformasyon Dergisi 11/1 (01 Mayıs 2024): 41-50. https://doi.org/10.9733/JGG.2024R0004.E.
JAMA
1.Özdaş N, Koçak MG, Karakış S. Examining the accuracy of DEM of difference and 3D point cloud comparison methods: Open pit mine case study. hkmojjd. 2024;11:41–50.
MLA
Özdaş, Nilüfer, vd. “Examining the accuracy of DEM of difference and 3D point cloud comparison methods: Open pit mine case study”. Jeodezi ve Jeoinformasyon Dergisi, c. 11, sy 1, Mayıs 2024, ss. 41-50, doi:10.9733/JGG.2024R0004.E.
Vancouver
1.Nilüfer Özdaş, Mehmet Güven Koçak, Serkan Karakış. Examining the accuracy of DEM of difference and 3D point cloud comparison methods: Open pit mine case study. hkmojjd. 01 Mayıs 2024;11(1):41-50. doi:10.9733/JGG.2024R0004.E