Combination of terrestrial laserscanning, UAV and close range photogrammertry for 3D reconstruction of complex churches in Georgia

Faculty/Professorship: Digital Technologies in Heritage Conservation  
Author(s): Luhmann, T.; Chizhova, Maria  ; Gorkovchuk, D.; Hastedt, H.; Chachava, N.; Lekveishvili, N.
Publisher Information: Bamberg : Otto-Friedrich-Universität
Year of publication: 2022
Pages: 753-761
Source/Other editions: The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - XLII-2/W11 (2019), S. 753-761 - ISSN: 2194-9034
is version of: 10.5194/isprs-archives-XLII-2-W11-753-2019
Year of first publication: 2019
Language(s): English
Licence: Creative Commons - CC BY - Attribution 4.0 International 
URN: urn:nbn:de:bvb:473-irb-537839
In September 2018, photogrammetric images and terrestrial laser scans were carried out as part of a measurement campaign for the three-dimensional recording of several historic churches in Tbilisi (Georgia). The aim was the complete spatial reconstruction with a spatial resolution and accuracy of approx. 1cm under partly difficult external conditions, which required the use of different measurement techniques.

The local measurement data were collected by two laser scanning campaigns (Leica BLK360 and Faro Focus 3D X330), two UAV flights and two terrestrial image sets. The photogrammetric point clouds were calculated with the SfM programs AgiSoft PhotoScan and RealityCapture taking into account the control points from the Faro laser scan. The mean residual errors from the registrations or photogrammetric evaluations are 4-12mm, depending on the selected software. The best completeness and quality of the resulting 3D model was achieved by using laserscan data and images simultaneously.
GND Keywords: Tiflis; Kirche; Denkmalpflege; 3D-Scanner; Fotometrie
Keywords: laserscanning,, photogrammetry, data fusion, 3D reconstruction, cultural heritage
DDC Classification: 920 Biography, genealogy, heraldic  
RVK Classification: LO 79470   
Type: Article
Release Date: 13. May 2022

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