This diploma thesis examines the impact of selected factors on the measurement accuracy of Tritop photogrammetry system and verifies the validity of theoretical predictive formulas. Primary attention is given to factors that are easily influenced by the inspector - namely number of captured images, shooting distance, number of scale bars and number of coded targets. In addition, experiments dealing with the measurement automation and the use of external color filter are also described in this thesis. Seven scale bars placed on a jig of cube shape were subject of the measurements (according to VDI/VDE 2634 standard). Two approaches were used in order to obtain measurement deviations – reference values, from which the measured data were subtracted to obtain deviations, were known due to the use of scale bars. Second approach consisted in evaluation of deviations from software Tritop Professional. The results showed that the number of photographs and shooting distance have the greatest impact on measurement accuracy of Tritop system. The accuracy was also influenced by number of coded targets in the scene or by use of the external green filter. Measured data were compared to the values obtained from predictive formulas. The results showed that the formula defined by the GOM company has a prediction accuracy of more than 96 %. However the formula is dependent on the input parameter called “Image accuracy” for which the value recommendations are made in this work. The results of this work can help predict measurement uncertainties more precisely and optimize the measurement methodology of Tritop photogrammetry system.
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:382167 |
| Date | January 2018 |
| Creators | Klus, Patrik |
| Contributors | Mendřický, Radomír, Zatočilová, Aneta |
| Publisher | Vysoké učení technické v Brně. Fakulta strojního inženýrství |
| Source Sets | Czech ETDs |
| Language | Czech |
| Detected Language | English |
| Type | info:eu-repo/semantics/masterThesis |
| Rights | info:eu-repo/semantics/restrictedAccess |
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