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3D model of the selected object
Veselý, Milan ; Nosek, Jakub (referee) ; Kalvoda, Petr (advisor)
The aim of the thesis was to assess the accuracy of photogrammetric results from images taken with a low-cost Xiaomi Mi 10T Pro camera and a professional digital SLR camera Canon EOS 6D Mark II with a 24 mm fixed lens. The chapel of St. John of Nepomuk near Guntramovice was chosen as the subject for the images. Forty-nine insertion and control points were targeted and scanned at the chapel. Block and beam alignment and creation of 3D mesh models was performed in Bentley ContexCapture software. The standard deviations of all three axes (X, Y, Z) and positional standard deviation on the control points and deviations relative to a reference point cloud acquired with a ground-based laser scanner were statistically tested. The results show that, with the right imaging and processing methods, comparable results can be achieved using a low-cost camera.
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3D model of the selected object
Jirásek, Michal ; Vondrák, Jiří (referee) ; Kalvoda, Petr (advisor)
Subject of diploma thesis is creation of a georeferenced 3D model of selected object by close-range photogrammetry. Part of the work is research of photogrammetric software’s and evaluation of accuracy of the model. Suggests a photogrammetric processing procedure in ContextCapture software. The resulting model was compared with a reference cloud of points determined by ground scanning.
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3D model of the selected object
Prokop, Jaromír ; Nosek, Jakub (referee) ; Kalvoda, Petr (advisor)
The subject of this diploma thesis is the creation of four georeferenced 3D models of the Chapel of Virgin Mary Help in Brno-Líšeň using images from two cameras, a digital reflex camera Canon EOS 6D Mark II and a low-cost camera Xiaomi Mi 10T Pro mobile phone, in two photogrammetric software, Bentley ContextCapture and Agisoft Metashape Professional. The accuracy of the models was analysed using checkpoints measured by a total station and a reference point cloud from the laser scanning of the chapel. One of the models was presented using Sketchfab on the internet, another one was 3D printed.
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Combination of laser and image data from a mobile mapping system
Stránská, Petra ; Kuruc, Michal (referee) ; Volařík, Tomáš (advisor)
The diploma thesis describes the data integration of data from different 3D technologies, specifically data of close range photogrammetry, aerial photogrammetry using RPAS and terrestrial laser scanning. The thesis deals mainly with fotogrammetric processing in ContextCapture software and data integration in this software. The thesis also describes a construction of a calibration field. The points of the field were used as ground control points and check points during processing. The accuracy of the outputs was evaluated by statistical testing of the coordinate deviations of the control points. The result of the thesis is 3D model of one of the buildings located in the AdMaS research center.
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Accuracy testing of mobile photogrammetry
Otrusinová, Jana ; Hanzl, Vlastimil (referee) ; Kalvoda, Petr (advisor)
This diploma thesis deals with a construction of a calibration field in the area of the AdMaS research centre (Brno University of Technology). Furthermore, photogrammetric data from the Riegl VMX-450 mobile mapping system has been acquired and processed. Selected points of the calibration field were used as control points. The other points of the calibration field were used as check points. As part of the testing, the coordinate deviations at the check points were assessed. The difference between the accuracy of mobile laser scanning and mobile photogrammetry was also evaluated. Coordinate deviations of mobile photogrammetry were tested according to standard ČSN 01 3410. Furthermore, a point cloud and a textured 3D model were generated.
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3D model of the selected object
Veselý, Milan ; Nosek, Jakub (referee) ; Kalvoda, Petr (advisor)
The aim of the thesis was to assess the accuracy of photogrammetric results from images taken with a low-cost Xiaomi Mi 10T Pro camera and a professional digital SLR camera Canon EOS 6D Mark II with a 24 mm fixed lens. The chapel of St. John of Nepomuk near Guntramovice was chosen as the subject for the images. Forty-nine insertion and control points were targeted and scanned at the chapel. Block and beam alignment and creation of 3D mesh models was performed in Bentley ContexCapture software. The standard deviations of all three axes (X, Y, Z) and positional standard deviation on the control points and deviations relative to a reference point cloud acquired with a ground-based laser scanner were statistically tested. The results show that, with the right imaging and processing methods, comparable results can be achieved using a low-cost camera.
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3D model of the selected object
Prokop, Jaromír ; Nosek, Jakub (referee) ; Kalvoda, Petr (advisor)
The subject of this diploma thesis is the creation of four georeferenced 3D models of the Chapel of Virgin Mary Help in Brno-Líšeň using images from two cameras, a digital reflex camera Canon EOS 6D Mark II and a low-cost camera Xiaomi Mi 10T Pro mobile phone, in two photogrammetric software, Bentley ContextCapture and Agisoft Metashape Professional. The accuracy of the models was analysed using checkpoints measured by a total station and a reference point cloud from the laser scanning of the chapel. One of the models was presented using Sketchfab on the internet, another one was 3D printed.
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3D model of the selected object
Jirásek, Michal ; Vondrák, Jiří (referee) ; Kalvoda, Petr (advisor)
Subject of diploma thesis is creation of a georeferenced 3D model of selected object by close-range photogrammetry. Part of the work is research of photogrammetric software’s and evaluation of accuracy of the model. Suggests a photogrammetric processing procedure in ContextCapture software. The resulting model was compared with a reference cloud of points determined by ground scanning.
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Accuracy Assessment of Photogrammetric Results from Low Cost and Professional Camera
Prokop, Jaromír ; Nosek, Jakub ; Kalvoda, Petr ; Veselý, Milan
The aim of the article was to assess the accuracy of photogrammetric results using images of a low-cost camera, a Xiaomi Mi 10T Pro mobile phone, and a Canon EOS 6D Mark II professional digital reflex camera. A total of 51 control and checkpoints were created at the chapel, and it was scanned by a terrestrial laser scanner. Bundle block adjustment and mesh model generation were performed using Bentley ContextCapture. 2D standard deviations and standard deviations of elevation at checkpoints and deviations from the reference terrestrial laser scanning point cloud were statistically tested. The results show that with a suitably selected imaging configuration, high-quality photogrammetric results can be achieved even with a low-cost camera
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