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Comparison of photogrammetry models obtained by various image aquisition techniques on Šterna badland in Istria (CROSBI ID 682746)

Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | domaća recenzija

Frangen, Tihomir ; Bostjančić, Iris ; Gulam, Vlatko ; Gajski, Dubravko ; Pollak, Davor ; Pavić, Mirja ; Zalović, Luka ; Mihoković, Viktor Comparison of photogrammetry models obtained by various image aquisition techniques on Šterna badland in Istria // 6. hrvatski geološki kongres s međunarodnim sudjelovanjem: Knjiga sažetaka - 6th Croatian Geological Congress with international participation: Abstracts Book / Horvat, Marija ; Matoš, Bojan ; Wacha, Lara (ur.). Zagreb: Hrvatski geološki institut, 2019. str. 64-66

Podaci o odgovornosti

Frangen, Tihomir ; Bostjančić, Iris ; Gulam, Vlatko ; Gajski, Dubravko ; Pollak, Davor ; Pavić, Mirja ; Zalović, Luka ; Mihoković, Viktor

engleski

Comparison of photogrammetry models obtained by various image aquisition techniques on Šterna badland in Istria

To understand the dynamics of badland denudation and quantify temporal changes, it is necessary to get the exact measures of their morphology. In that sense, the use of photogrammetry proved to be a good tool for badland 3D model creation. The test polygon is established on Šterna badland in Istria, covering app. 37.000 m2. Within, for close range photogrammetry, several smaller pilot polygons are defined, with an area of several square meters. Several image acquisition techniques were used to obtain photogrammetry models, including two different methods, airborne and terrestrial. For airborne image acquisition different UAV (unmanned aerial vehicle) types were used, fixed-wing (senseFly eBee and Topcon Sirius Pro) and multicopter UAVs (senseFly Albris and Falcon 8+ Topcon Edition). The flights were performed at different altitudes combining automated, semi- automated and manual flight modes. Ground-based images were taken using DSLR camera (Nikon D610 with 35 mm f/2 lens) with and without the tripod, and mobile phone camera (Huawei P8 Light). To test the difference of digital surface models (DSMs) obtained by different image acquisition techniques, a preliminary analysis was performed in GIS environment. For that purpose, all DSMs that were processed for one pilot polygon were compared. The cell values (Z coordinate) of DSMs were extracted for 100 points randomly created within the polygon of 7.45 m2 and compared. DSM obtained from images acquired by DSLR camera with tripod was taken as the reference model. The first results of DSMs comparison are presented.

Photogrammetry ; 3D model ; badland ; denudation ; UAV

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Podaci o prilogu

64-66.

2019.

objavljeno

Podaci o matičnoj publikaciji

6. hrvatski geološki kongres s međunarodnim sudjelovanjem: Knjiga sažetaka - 6th Croatian Geological Congress with international participation: Abstracts Book

Horvat, Marija ; Matoš, Bojan ; Wacha, Lara

Zagreb: Hrvatski geološki institut

Podaci o skupu

6. hrvatski geološki kongres s međunarodnim sudjelovanjem

predavanje

06.10.2019-12.10.2019

Zagreb, Hrvatska

Povezanost rada

Geodezija, Interdisciplinarne tehničke znanosti, Rudarstvo, nafta i geološko inženjerstvo