TY  - CONF
AU  - Gospavić, Zagorka
AU  - Šušić, Vladimir
AU  - Pavlović, Spasoje
PY  - 2020
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2230
AB  - Bečej Dam is a concrete dam on the Tisa River, which has been monitored since the 1980s through the monitoring of point-mark position vector changes on the dam body in 2D and 1D coordinate system. Conventional geodetic measurements are applied, and displacement vectors of point-mark  are determined by the congruence method over a long period of time. The network of geodetic points that defines the local coordinate system has been designed and realized. This paper will present the results of the 2019 measurements. The following measurements have been performed in the geodetic network:  GPS measurements for vectors, measurements of lengths and  angles, and measurements of  the height differences. A complete scaning of the broader dam body area and all access facilities, reservoir and its bottom was performed using the Lidar and multibeam technology. The visualization of the dam body and reservoir lake were presented in a 3D model, based on the Lidar and multibeam technology results. Displacement vectors of point-mark are shown in the 3D model created. 
The example of the Bečej dam demonstrates the capabilities of modern Lidar and multibeam technology, the creation and visualization of 3D object models and the presentation of all potential geometry changes that are important for the safe maintenance and management of the feature.
PB  - Department of Surveying, Faculty of Civil Engineering, Slovak University of Technology in Bratislava
PB  - Croatian Geodetic Society, Zagreb
PB  - Faculty of Geodesy, University of Zagreb, Croatia
C3  - INGEO&SIG 2020
T1  - Capturing dam geometry by Lidar and multibeam technology for visualization of structural deformations - Case study Dam Bečej
IS  - 108-117
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2230
ER  - 

@conference{
author = "Gospavić, Zagorka and Šušić, Vladimir and Pavlović, Spasoje",
year = "2020",
abstract = "Bečej Dam is a concrete dam on the Tisa River, which has been monitored since the 1980s through the monitoring of point-mark position vector changes on the dam body in 2D and 1D coordinate system. Conventional geodetic measurements are applied, and displacement vectors of point-mark  are determined by the congruence method over a long period of time. The network of geodetic points that defines the local coordinate system has been designed and realized. This paper will present the results of the 2019 measurements. The following measurements have been performed in the geodetic network:  GPS measurements for vectors, measurements of lengths and  angles, and measurements of  the height differences. A complete scaning of the broader dam body area and all access facilities, reservoir and its bottom was performed using the Lidar and multibeam technology. The visualization of the dam body and reservoir lake were presented in a 3D model, based on the Lidar and multibeam technology results. Displacement vectors of point-mark are shown in the 3D model created. 
The example of the Bečej dam demonstrates the capabilities of modern Lidar and multibeam technology, the creation and visualization of 3D object models and the presentation of all potential geometry changes that are important for the safe maintenance and management of the feature.",
publisher = "Department of Surveying, Faculty of Civil Engineering, Slovak University of Technology in Bratislava, Croatian Geodetic Society, Zagreb, Faculty of Geodesy, University of Zagreb, Croatia",
journal = "INGEO&SIG 2020",
title = "Capturing dam geometry by Lidar and multibeam technology for visualization of structural deformations - Case study Dam Bečej",
number = "108-117",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2230"
}

Gospavić, Z., Šušić, V.,& Pavlović, S.. (2020). Capturing dam geometry by Lidar and multibeam technology for visualization of structural deformations - Case study Dam Bečej. in INGEO&SIG 2020
Department of Surveying, Faculty of Civil Engineering, Slovak University of Technology in Bratislava.(108-117).
https://hdl.handle.net/21.15107/rcub_grafar_2230

Gospavić Z, Šušić V, Pavlović S. Capturing dam geometry by Lidar and multibeam technology for visualization of structural deformations - Case study Dam Bečej. in INGEO&SIG 2020. 2020;(108-117).
https://hdl.handle.net/21.15107/rcub_grafar_2230 .

Gospavić, Zagorka, Šušić, Vladimir, Pavlović, Spasoje, "Capturing dam geometry by Lidar and multibeam technology for visualization of structural deformations - Case study Dam Bečej" in INGEO&SIG 2020, no. 108-117 (2020),
https://hdl.handle.net/21.15107/rcub_grafar_2230 .

TY  - CONF
AU  - Martinenko, Anastasija
PY  - 2020
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2217
AB  - The basic idea of the paper is to use UAV photogrammetry for monitoring landslide activities at Umka. The paper describes the monitoring of changes during one year. Two landslide epochs were studied at Umka in the spring, the first epoch is from 2018 and the second is from 2019. Imagery was collected by using professional Unmanned Aerial System (UAS) with mounted DSLR camera during flight campaign in 2018 and 2019 for a landslide located near the settlement of Umka (Serbia). The resulting images were processed using the PIX4Dmapper software. From both epochs were calculated the mean square error (RMSE) values of the DMTs for landmarks (GCP). The products of realized epochs were classified dense point cloud, orthophotos and generated Digital Model Terrain (DMT). Different software solutions were used to get DMT. The problem arose in areas with dense vegetation due to lack of landmarks (GCP). Based on the obtained products from both epochs for the same area, ground motion detection (using DMT) and object movement (object detection on the orthophoto) were performed.
PB  - UNIVERSITY OF MONTENEGRO, FACULTY OF CIVIL ENGINEERING -THE 7th INTERNATIONAL CONFERENCE "CIVIL ENGINEERING - SCIENCE AND PRACTICE"
C3  - "GNP 2020"
T1  - Monitoring active landslide at Umka settlement using UAV photogrammetry
IS  - 1067-1074
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2217
ER  - 

@conference{
author = "Martinenko, Anastasija",
year = "2020",
abstract = "The basic idea of the paper is to use UAV photogrammetry for monitoring landslide activities at Umka. The paper describes the monitoring of changes during one year. Two landslide epochs were studied at Umka in the spring, the first epoch is from 2018 and the second is from 2019. Imagery was collected by using professional Unmanned Aerial System (UAS) with mounted DSLR camera during flight campaign in 2018 and 2019 for a landslide located near the settlement of Umka (Serbia). The resulting images were processed using the PIX4Dmapper software. From both epochs were calculated the mean square error (RMSE) values of the DMTs for landmarks (GCP). The products of realized epochs were classified dense point cloud, orthophotos and generated Digital Model Terrain (DMT). Different software solutions were used to get DMT. The problem arose in areas with dense vegetation due to lack of landmarks (GCP). Based on the obtained products from both epochs for the same area, ground motion detection (using DMT) and object movement (object detection on the orthophoto) were performed.",
publisher = "UNIVERSITY OF MONTENEGRO, FACULTY OF CIVIL ENGINEERING -THE 7th INTERNATIONAL CONFERENCE "CIVIL ENGINEERING - SCIENCE AND PRACTICE"",
journal = ""GNP 2020"",
title = "Monitoring active landslide at Umka settlement using UAV photogrammetry",
number = "1067-1074",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2217"
}

Martinenko, A.. (2020). Monitoring active landslide at Umka settlement using UAV photogrammetry. in "GNP 2020"
UNIVERSITY OF MONTENEGRO, FACULTY OF CIVIL ENGINEERING -THE 7th INTERNATIONAL CONFERENCE "CIVIL ENGINEERING - SCIENCE AND PRACTICE".(1067-1074).
https://hdl.handle.net/21.15107/rcub_grafar_2217

Martinenko A. Monitoring active landslide at Umka settlement using UAV photogrammetry. in "GNP 2020". 2020;(1067-1074).
https://hdl.handle.net/21.15107/rcub_grafar_2217 .

Martinenko, Anastasija, "Monitoring active landslide at Umka settlement using UAV photogrammetry" in "GNP 2020", no. 1067-1074 (2020),
https://hdl.handle.net/21.15107/rcub_grafar_2217 .