Dissertations / Theses on the topic 'Photogrammetry - methods'
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Kyle, Stephen Alexander. "Triangulation methods in engineering measurement." Thesis, University College London (University of London), 1988. http://discovery.ucl.ac.uk/1318061/.
Full textKendler, Johnathan M. "Evaluating methods for implementing photogrammetric sensor platforms with various Lidar components for use with close and mid-range particle detection systems." abstract and full text PDF (UNR users only), 2008. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1460763.
Full textTang, Rongfu [Verfasser], and Dieter [Akademischer Betreuer] Fritsch. "Mathematical methods for camera self-calibration in photogrammetry and computer vision / Rongfu Tang. Betreuer: Dieter Fritsch." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2013. http://d-nb.info/1042186596/34.
Full textGold, Brenda Joan. "A roentgen stereophotogrammetric analysis system for the measurement of subsidence of the femoral components in total hip arthroplasty." Thesis, University of Cape Town, 1993. http://hdl.handle.net/11427/26276.
Full textCrabtree, Gärdin David, and Alexander Jimenez. "Optical methods for 3D-reconstruction of railway bridges : Infrared scanning, Close range photogrammetry and Terrestrial laser scanning." Thesis, Luleå tekniska universitet, Byggkonstruktion och brand, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-67716.
Full textHubbard, Jackson Durain. "3D Cave and Ice Block Morphology from Integrated Geophysical Methods: A Case Study at Scărişoara Ice Cave, Romania." Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/6712.
Full textDeshpande, Sagar Shriram. "Semi-automated Methods to Create a Hydro-flattened DEM using Single Photon and Linear Mode LiDAR Points." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1491300120665946.
Full textFeng, Quanhong. "Novel methods for 3-D semi-automatic mapping of fracture geometry at exposed rock faces." Doctoral thesis, Stockholm : Tekniska högsk, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3181.
Full textZatočilová, Aneta. "Měření a vyhodnocování přímosti osy rotačních výkovků pomocí fotogrammetrie a analýzy obrazu." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-234252.
Full textJohnson, Theodore David. "The Sequential Givens method for adjustment computations in photogrammetry." Thesis, Virginia Tech, 1988. http://hdl.handle.net/10919/44070.
Full textMaster of Science
Long, Barrington. "Study of photogrammetric self-calibration adjustment method." Thesis, Virginia Tech, 1990. http://hdl.handle.net/10919/42120.
Full textThe development of a viable self-calibration approach for use with non-metric cameras was investigated. Both computer generated and actual test camera data were generated to determine the effectiveness of the math model and computer program. A twenty-seven parameter bundle adjustment routine was proposed because of its versatility and compatible use in an existing aerotriangulation package. For the camera and test configuration considered, the focal length was recovered to within two percent, and the principal point location was recovered to wi thin O. 3 to twelve percent. When the computer generated data was used, the focal length and principal point offset were recovered to within 0.2 percent.
Modeling and software has been made available for a future comparative study between the self-calibration and Direct Linear Transformation adjustment parameters. The self-calibration modeling and former Direct Linear Transformation modeling software is a promising tool for mensuration tests and experiments with video and Charge Coupled Device (CCD) imagery.
Master of Science
Lennartsson, Louise. "Photogrammetric methods for calculating the dimensions of cuboids from images." Thesis, Umeå universitet, Institutionen för fysik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-105159.
Full textDet finns tillfällen då man undrar över storleken på ett föremål, men inte har något mätinstrument i närheten. Det är dock troligt att du har en smartphone på dig. Smartphones har oftast en integrerad digitalkamera, så tänk om du kunde ta ett foto på föremålet och få en storleksuppskattning. I det här projektet har olika metoder för att beräkna dimensionerna på ett rätblock utvärderats. En enkel Android-applikation som implementerar dessa metoder har också skapats. För att kunna göra mätningar på föremål i bilder måste vi veta hur vyn återskapas av kameran. Detta beror på kamerans egenskaper vilka kallas kameraparametrarna. Dessa parametrar kan man få fram genom att göra en kamerakalibrering, vilket inte är en trivial uppgift. Därför har åtta smartphonekameror, från olika tillverkare, kalibrerats för att se om det finns likheter mellan kamerorna som kan befoga vissa generaliseringar. För att kunna räkna ut storleken på rätblocket måste skalan vara känd och därför används ett referensobjekt. I detta projekt har ett kreditkort använts som referensobjekt. Referensen placeras ovanpå rätblocket och sedan används fyra av referensens hörn samt fyra av rätblockets hörn i beräkningarna. Två metoder, en beroende och en oberoende av kameraparametrarna, har använts för att beräkna längden och bredden, alltså längden på de två sidor som ligger i samma plan som referensobjektet. Detta resultat används sedan i ytterligare två olika metoder för att beräkna höjden på rätblocket. För att undersöka hur de olika metoderna klarade av fel manipulerades hörnen. Resultaten visar att de olika metoderna fungerar bra och är alla lika lämpliga för att lösa den här uppgiften. De visar också på att det är viktigare att referensobjektets hörn är korrekta än rätblockets hörn eftersom referensobjektets hörn hade större inverkan på resultaten. En slutsats som också kan dras är att kameraparametrarna kan approximeras och att kamerakalibrering därför inte nödvändigtvis behöver utföras.
Harrison, John Paul. "Improved analysis of rock mass geometry using mathematical and photogrammetric methods." Thesis, Imperial College London, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.398372.
Full textPutze, Torsten. "Geometrische und stochastische Modelle zur Optimierung der Leistungsfähigkeit des Strömungsmessverfahrens 3D-PTV." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2009. http://nbn-resolving.de/urn:nbn:de:bsz:14-ds-1231402875520-12137.
Full text3D Particle Tracking Velocimetry (3D PTV) is an image based method for flow field determination. It is based on seeding a flow with tracer particles and recording the flow with a multi camera system. The results are 3D trajectories of a large number of particles for a statistical analysis of the flow. The thesis shows different novel models to increase the spectrum of applications and to optimize efficiency of 3D PTV. Central aspects are the use of the mirror system to generate a virtual multi camera system, the modelling of complex interfaces of multimedia photogrammetry, a probability based tracking method and a novel method for tomographic reconstruction of volume raster data. The improved models are tested in three real testing facilities and with synthetic data. Using a beam splitter in front of the camera lens and deflecting mirrors arranged in the optical path, a four headed virtual camera system can be generated. This method is characterised by its economic efficiency and by the fact that a synchronisation is not necessary. These facts are important especially when using high speed cameras. When observing phenomena in water, there will be refraction at the different interfaces. This has to be taken into account and modelled for each application. Approaches which use correction terms are not suitable to handle complex optical interfaces. The developed approach is based on a multiple refraction ray tracing with known interface parameters and camera orientations. Mostly the multi image matching of particles is performed using epipolar geometry. Caused by the not stable camera orientation or a very high particle density this geometric properties are not sufficient to solve the ambiguities. Using further geometrical radiometrical and physical properties of particles, the determination of the 3D trajectories can be performed. After the analysis of different properties those of them are chosen which are suitable for spatio-temporal matching. 3D PTV bases on the discretisation of particle images in image space and the following object coordinate determination. A raster based approach is the tomographic reconstruction of the volume. Here the light intensity distribution in the volume will be reconstructed. Afterwards the flow information is determined from the differences in successive 3D images. Using tomographic reconstruction techniques a higher particle density can be analysed. The developed approach bases on a slice by slice rectification of the camera images and on a following assembly of the volume. The developed models and approaches are tested at different testing facilities. These differ in size (0.5 dm³ – 20 dm³ – 130 m³) and flow velocities (0.3 m/s – 7 m/s – 0.5 m/s)
Hsia, Jung-Sheng. "A new method for the automated production of digital terrain models using a combination of feature points, grid points and filling back points." Thesis, University of Newcastle Upon Tyne, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337379.
Full textPutze, Torsten. "Geometrische und stochastische Modelle zur Optimierung der Leistungsfähigkeit des Strömungsmessverfahrens 3D-PTV." Doctoral thesis, Technische Universität Dresden, 2008. https://tud.qucosa.de/id/qucosa%3A23711.
Full text3D Particle Tracking Velocimetry (3D PTV) is an image based method for flow field determination. It is based on seeding a flow with tracer particles and recording the flow with a multi camera system. The results are 3D trajectories of a large number of particles for a statistical analysis of the flow. The thesis shows different novel models to increase the spectrum of applications and to optimize efficiency of 3D PTV. Central aspects are the use of the mirror system to generate a virtual multi camera system, the modelling of complex interfaces of multimedia photogrammetry, a probability based tracking method and a novel method for tomographic reconstruction of volume raster data. The improved models are tested in three real testing facilities and with synthetic data. Using a beam splitter in front of the camera lens and deflecting mirrors arranged in the optical path, a four headed virtual camera system can be generated. This method is characterised by its economic efficiency and by the fact that a synchronisation is not necessary. These facts are important especially when using high speed cameras. When observing phenomena in water, there will be refraction at the different interfaces. This has to be taken into account and modelled for each application. Approaches which use correction terms are not suitable to handle complex optical interfaces. The developed approach is based on a multiple refraction ray tracing with known interface parameters and camera orientations. Mostly the multi image matching of particles is performed using epipolar geometry. Caused by the not stable camera orientation or a very high particle density this geometric properties are not sufficient to solve the ambiguities. Using further geometrical radiometrical and physical properties of particles, the determination of the 3D trajectories can be performed. After the analysis of different properties those of them are chosen which are suitable for spatio-temporal matching. 3D PTV bases on the discretisation of particle images in image space and the following object coordinate determination. A raster based approach is the tomographic reconstruction of the volume. Here the light intensity distribution in the volume will be reconstructed. Afterwards the flow information is determined from the differences in successive 3D images. Using tomographic reconstruction techniques a higher particle density can be analysed. The developed approach bases on a slice by slice rectification of the camera images and on a following assembly of the volume. The developed models and approaches are tested at different testing facilities. These differ in size (0.5 dm³ – 20 dm³ – 130 m³) and flow velocities (0.3 m/s – 7 m/s – 0.5 m/s).
Fristot, Vincent. "Métrologie par stéréovision : acquisition synchrone et précision subpixel pour la calibration." Grenoble INPG, 1992. http://www.theses.fr/1992INPG0072.
Full textHunt, Cahill. "Developing an efficient method for generating facial reconstructions using photogrammetry and open source 3D/CAD software." Thesis, Hunt, Cahill (2017) Developing an efficient method for generating facial reconstructions using photogrammetry and open source 3D/CAD software. Masters by Coursework thesis, Murdoch University, 2017. https://researchrepository.murdoch.edu.au/id/eprint/39826/.
Full textUrbina-Barreto, Isabel. "Nouveaux indices quantitatifs pour le suivi des récifs coralliens issus de modélisation 3D par photogrammétrie." Thesis, La Réunion, 2020. http://www.theses.fr/2020LARE0021.
Full textHabitat structural complexity plays a key role in the dynamics and resilience of coral reef communities. The critical situation of coral reef ecosystems beseeches a rapid improvement of monitoring tools to assist in the implementation of efficient conservation measures. Today, new reef assessment technologies support researchers and managers to collect information safer, faster, and with greater accuracy. Among them, photogrammetry by Structure-from-Motion (SfM) creates three-dimensional models and reef zone maps from overlapping images to conduct quantitative surveys of benthic communities. This thesis addressed four objectives: 1) define underwater photogrammetry protocols to create 3D models of coral colonies and reefscapes, in order to conduct physical and ecological assessments, 2) develop new quantitative reef habitat descriptors, 3) determine the links between these descriptors and the key functional processes ensured by associated fish assemblages, 4) compare photogrammetric methods with a traditional monitoring method, the Line Intercept Transect (LIT). Overall, 120 coral colonies, 24 reefscapes, and two artificial structures (breakwaters) were 3D modeled in two biogeographic provinces: New Caledonia (Pacific Ocean), Europa Island, and Reunion Island (Indian Ocean). Two photogrammetric protocols were defined corresponding to the study scales: the coral colony (≤ 2 m3) and the reefscapes and breakwaters (> 100 m2). Analyzing the 3D models of coral colonies provided 2D and 3D metrics to estimate their shelter volume. Predictive models were then built and fitted to estimate shelter capacity at the reefscape scale. Mapped reefscapes provided the necessary information to calculate 22 new quantitative descriptors. Among them, seven were the most complementary: surface complexity, shelter capacity, diversity of shelter - Shannon Shelter Index, the abundance of branching, massive and tabular, and total coral cover. They explained 63% and 70% of the distribution of reef fish biomass and abundance, respectively. Multifactorial analyses demonstrated the importance of these habitat descriptors in supporting five key functions of reef ecosystems that are ensured by groups of fishes (herbivory-bioerosion, secondary production, plankton assimilation, predation, and coral feeding). Comparisons between photogrammetric methods and the LIT method showed that the surface analysis on the orthomosaics is the most efficient method considering the quantity and quality of data that can be gathered and the time expenditure. The LIT method is less time-consuming and more efficient for specific taxonomic identifications, though it is the most limited method in terms of descriptors and the representativeness of the ecosystem. In addition to the four principle objectives, the 3D models and other photogrammetric outputs served as communication tools in different awareness actions.To sum up, this thesis demonstrated the relevance of underwater SfM photogrammetry applications for coral reef studies, management, and awareness actions. The collected data and their analyses also contribute to establishing a baseline for monitoring the state of reef ecosystems and their functions. In doing so, it provides new scientific information to enhance future management measures and confront the ambitious twenty-first-century conservation targets
Fisher, D. N. "Application of stereo-photogrammetric methods to the advanced along track scanning radiometer for the atmospheric sciences." Thesis, University College London (University of London), 2014. http://discovery.ucl.ac.uk/1429893/.
Full textJean, Nicole J. "Development of boundary conditions for building drainage system components through novel numerical, laboratory and photogrammetric methods." Thesis, Heriot-Watt University, 2015. http://hdl.handle.net/10399/3085.
Full textKopečný, Josef. "Návrh nové metody pro stereovidění." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2008. http://www.nusl.cz/ntk/nusl-235903.
Full textBarrett, Benjamin Joseph. "Field Validation of an Advanced Autonomous Method of Exterior Dam Inspection Using Unmanned Aerial Vehicles." BYU ScholarsArchive, 2018. https://scholarsarchive.byu.edu/etd/7463.
Full textZorn, Edgar Ulrich Verfasser], Thomas [Akademischer Betreuer] Walter, and Ulrich [Gutachter] [Küppers. "Monitoring lava dome growth and deformation with photogrammetric methods and modelling / Edgar Ulrich Zorn ; Gutachter: Ulrich Küppers ; Betreuer: Thomas Walter." Potsdam : Universität Potsdam, 2020. http://d-nb.info/1223022455/34.
Full textZorn, Edgar Ulrich [Verfasser], Thomas Akademischer Betreuer] Walter, and Ulrich [Gutachter] [Küppers. "Monitoring lava dome growth and deformation with photogrammetric methods and modelling / Edgar Ulrich Zorn ; Gutachter: Ulrich Küppers ; Betreuer: Thomas Walter." Potsdam : Universität Potsdam, 2020. http://d-nb.info/1223022455/34.
Full textJutzi, Boris [Verfasser]. "Methoden zur automatischen Szenencharakterisierung basierend auf aktiven optischen Sensoren für die Photogrammetrie und Fernerkundung / Boris Jutzi." Karlsruhe : KIT-Bibliothek, 2015. http://d-nb.info/1079594892/34.
Full textBenoist, Jean Pierre. "Analyse spectrale de signaux glaciologiques : étude des glaces sédimentaires déposées à Dôme C, morphologie du lit d'un glacier : [thèse soutenue sur un ensemble de travaux]." Grenoble 1, 1986. http://www.theses.fr/1986GRE10112.
Full textEltner, Anette [Verfasser], Hans-Gerd [Akademischer Betreuer] Maas, Johannes B. [Gutachter] Ries, and Michael R. [Gutachter] James. "Photogrammetric techniques for across-scale soil erosion assessment : Developing methods to integrate multi-temporal high resolution topography data at field plots / Anette Eltner ; Gutachter: Johannes B. Ries, Michael R. James ; Betreuer: Hans-Gerd Maas." Dresden : Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://d-nb.info/1121474578/34.
Full textRiedel, Mirko [Verfasser], Steffen [Akademischer Betreuer] Ihlenfeldt, and Hans-Gerd [Akademischer Betreuer] Maas. "Methodik zur Modellierung von photogrammetrischen Messungen zur Charakterisierung der Genauigkeit von Werkzeugmaschinen : Methodology for the modelling of photogrammetric measurements for characterization of the accuracy of machine tools / Mirko Riedel ; Steffen Ihlenfeldt, Hans-Gerd Maas." Dresden : Technische Universität Dresden, 2020. http://d-nb.info/1227202539/34.
Full textSamani, Jakob. "UAS-noggrannhet i praktiken : En undersökning av dagens UAS-fotogrammetris noggrannhet." Thesis, Karlstads universitet, Institutionen för geografi, medier och kommunikation, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-31010.
Full textAbstract The purpose of the study is to understand what the accuracy of UAS photogrammetry today (2013) is. The study was based on the following questions: Can UAS photogrammetry today give precise points, measuring the centre of 1x1 meter plywood boards viewed from an orthophoto?; Can it give similar accuracy as the size of the pixels? And can UAS technology today be used to produce elevation models of good quality? To investigate these questions, a study has been made to compare coordinates collected from a total station and UAS photogrammetric methods. The results show that the standard error is approximately 1 pixel on flat coordinates and 1 pixel on elevated coordinates. The pixel size was between 4.7 and 9.3 cm. The biggest source of error seems to be the resolution on the pictures, but the technology develops quickly. The UAS photogrammetry method definitely meets the expectations of the questions.
Slabotinský, Filip. "Využití fotogrametrie v oboru znalectví ve stavebnictví a oceňování nemovitostí." Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-233118.
Full textLin, Chun-Te, and 林峻德. "The Analysis of Landslide Using Digital Photogrammetry and Numerical Methods." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/35600947845970547404.
Full text國立中興大學
水土保持學系所
102
Creep commonly happens on slopes before large-scale collapse. Instead of comparing remote sensing images before and after a landslide, this study estimates the displacements and displacement rates before collapse of the slopes of Lushan, the Freeway No.3 and the right ridge of Wu-She Dam. Aerial photographs of different years were rectified to obtain orthophotographs to analyze the change of displacements or displacement rates before the slope failure. The results show a displacement of 90cm of the Lushan slope since 2006. In the case of the slope of the Freeway No.3, the displacement rate from 2002 to2004 is higher than that from 2004 to 2007. The sliding directions of both periods are toward southeast, and the accumulated displacement is 70 cm. As for the right ridge of Wu-She Dam, the sliding directions are approximately toward east. In addition to estimating the displacement rates of these landslide events, the software Plaxis 2D based on the finite element method is adopted to analyze the creep behavior under the influence of the sliding surface with different geometries, thicknesses, depths or strength of the material. The results show that the lower strength of the material and the more shallow of the sliding surface, the shorter time to reach failure and the higher the displacement rate. The displacement at a upper slope is larger than that at a lower slope. Furthermore, if the sliding surface is circular or its thickness is larger, the time to reach failure is shorter.
Tang, Jia-Hao, and 湯佳豪. "Assessment Methods of Bricklaying Competitions Assisted by Close-range Photogrammetry." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/5f5ug9.
Full text國立臺灣大學
土木工程學研究所
107
Skills competition is an annual event for vocational education, and bricklaying is one of the long-established competitions. The assessment methods of the bricklaying competition mainly adopts the manual measurement method, which is time consuming and laborious, and the brick walls are not easy to save. Close-range photogrammetry is a well-developed technology that can generate 3D point cloud models and accurately reconstruct 3D surface through dense image matching. This study applies the close-range photogrammetry to assist in the scoring of brickwork competitions. By establishing a reliable model coordinate system with control points, and a adequate mission planning, , the non-metric camera is used to obtain numerous overlapping images of the brickwork. Then the 3D modeling software (ContextCapture) is used to produce the high-density point cloud. Finally the point cloud measurement procedure developed by this study is applied to perform the measurement of the dimension, plumb, level and alignment of the brick walls in the point cloud in a semi-automatic manner. Through the experimental evaluation and testing of the feasibility of the proposed method, it is shown that semi-automated point cloud measurement can indeed reduce manual measurement and reduce the impact of human factors. In addition, the point cloud can completely preserve the brick wall and is convenient for digital platform display, and can also be used as a basis for re-assessment when the competitors raises the objection. This study uses close-range photogrammetry to provide a low-cost but high-quality measurement operations for bricklaying competition with improved efficiency in existing method.
BÍSKOVÁ, Jaroslava. "Možnosti zaměření prostorového členění malých stavebních objektů." Master's thesis, 2014. http://www.nusl.cz/ntk/nusl-174180.
Full textGhorbani, Ardavan. "Terrestrial survey and remotely-sensed methods for detecting the biological soil crust components of rangeland condition." 2007. http://arrow.unisa.edu.au/vital/access/manager/Repository/unisa:37800.
Full textWang, Ying-Wei, and 王瑩瑋. "Accident Scene Reconstruction Using Single-Image Photogrammetry Method." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/79728763886123624520.
Full text國立成功大學
交通管理(科學)學系
84
The results of accident reconstruction and in-depth investigation are seriously influenced by the correctness and completeness of accident data collection at the scene. In the present, the tasks of accident investigation and data collection at the scene are performed by the policemen, always resulting in some data missing and mistaken measurements. The purpose of this research is to develop a low-cost, time-saving, high applicability, and high accuracy method for reconstructing the accident scene to solve their drawbacks of the developed methods which have been highlighted by the literature''s review. This study employs an at-scene experiment method cooperated with the computer graphical operation system thus developed to validate the adquency of a so-called pseudo-maker setting method, and its applicability was demonstrated by the case study on the actual roadway. The pseudo-marker setting method is a newly single- image photogrammetry method which is based on the geometrical theory, and combines the theory of computer graphics to reproduce the accident scene by the techniques of interactive computer graphic and digital terrain simulation. In theory, it partially solves the problems of how to determine the heights of the imaged points on single-photos. In application, the operational criteria for photographing the accident scene have thus been proposed in cooperation with the developed method to collect the accident scene data effectively. Employing the developed method to collect the accident scene data not only can preserve the correctness and completeness of accident data, but also can solve the problems generally incurred in accident investigation and data collection at the scene.
Hazhiyah, Amalia Ula, and Amalia Ula Hazhiyah. "Volume Measurement of DC Craters with Photogrammetry Method." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/sjd9w7.
Full text國立臺灣科技大學
營建工程系
106
Ground improvement by Dynamic Compaction (DC) is a commonly used method for the densification of in-situ sandy soil to a large depth. After pounding, a crater on the ground is formed, and surface heaved. To evaluate the effectiveness of pounding, the volume change of crater and ground heave before and after pounding needs to be measured. Traditionally, the volume of dynamic compaction induced crater and ground heave is measured by means of level surveying and ruler measurement. However, since ground heave around the crater and the shape of the crater itself are irregular, it is not only difficult but also time-consuming to accurately measure the volume of crater and ground heave. This study proposes a method that adopts the image processing (photogrammetry) technology to accurately measure the crater volume and the ground heave around it. A commercial software, which is initially used for the drone, is used here to generate point cloud of the crater and its surrounding area using the images captured with a video camera or smartphone. The accuracy of this method was calibrated with a known volume box in the laboratory first before it was used in a field trial test. The study will present and discuss the operation procedure and image processing of this method. The crater volume measured from the photogrammetry method is compared with that measured from the traditional measuring method. It is found that the volume of DC crater can be better approximated by cone shape crater than by truncated cone shape crater, which is commonly used in the DC industry and can seriously overestimate the actual volume of DC craters.
Santos, Sérgio Ricardo da Silva. "Feature Extraction and Matching Methods and Software for UAV Aerial Photogrammetric Imagery." Master's thesis, 2013. https://repositorio-aberto.up.pt/handle/10216/71150.
Full textSantos, Sérgio Ricardo da Silva. "Feature Extraction and Matching Methods and Software for UAV Aerial Photogrammetric Imagery." Dissertação, 2013. https://repositorio-aberto.up.pt/handle/10216/71150.
Full textTzu-HsuanWeng and 翁梓軒. "The Performance Analysis of Photogrammetric Method for Indoor Mapping with RGB-D Sensor." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/41280135998460177275.
Full textRiedel, Mirko. "Methodik zur Modellierung von photogrammetrischen Messungen zur Charakterisierung der Genauigkeit von Werkzeugmaschinen." 2018. https://tud.qucosa.de/id/qucosa%3A71555.
Full text(9187466), Bharath Kumar Comandur Jagannathan Raghunathan. "Semantic Labeling of Large Geographic Areas Using Multi-Date and Multi-View Satellite Images and Noisy OpenStreetMap Labels." Thesis, 2020.
Find full textSpohner, Regine [Verfasser]. "Rezente Landschaftsveränderungen im Nanga-Parbat-Gebiet (Nordwest-Himalaya) : eine Untersuchung mit Hilfe einer integrativen Methode aus Photogrammetrie, Satellitenfernerkundung und Geographischen Informationssystemen (GIS) / vorgelegt von Regine Spohner." 2004. http://d-nb.info/973677376/34.
Full textHeller, Veit. "Methoden zur Untersuchung und Dokumentation der Geigen am Museum für Musikinstrumente der Universität Leipzig." 2017. https://ul.qucosa.de/id/qucosa%3A17213.
Full textBochow, Mathias. "Automatisierungspotenzial von Stadtbiotopkartierungen durch Methoden der Fernerkundung." Doctoral thesis, 2010. https://repositorium.ub.uni-osnabrueck.de/handle/urn:nbn:de:gbv:700-201006096323.
Full textDuarte, João António Marques. "Caracterização de áreas com potencial para extracção de rochas ornamentais carbonatadas: análise integrada de dados de fotogramétricos, geológicos e geofísica para caracterização de alta resolução de maciços rochosos carbonatados." Doctoral thesis, 2018. http://hdl.handle.net/10316/87557.
Full textO principal objetivo deste trabalho foi avaliar geológica e estruturalmente os maciços rochosos, através da caracterização da sua localização, tipos de orientação e frequência das descontinuidades, a qualidade e quantidade dos tipos litológicos presentes, assim com moldar as suas disposições e inter–relações espaciais. Para o efeito foram planeadas várias campanhas de recolha de dados: - Campanhas de prospeção geofísica utilizando o Método Transiente Eletromagnético [TEM] na área de estudo definida; - Campanhas de levantamento geológico-estrutural com o objetivo de cartografar a fracturação e estruturas associada, a geologia e os seus aspetos estratigráficos; Grande parte do trabalho efetuado foi realizado paralelamente à progressão das atividades extrativas, o que permitiu uma melhor compreensão da relação entre as estruturas, os dados dos ensaios realizados e o desenvolvimento do planeamento efetuado; - Campanhas de levantamentos aéreos, recorrendo à utilização de Veículo aéreo não tripulado [VANT], utilização da fotogrametria para avaliação geológico-estrutural. assim como trabalhos de análise laboratorial: - Análise das sondagens efetuadas na área de estudo; - Análise de dados de deteção remota. A escolha da localização da área de onde se realizaram os trabalhos teve em consideração a possibilidade de correlacionar os dados adquiridos com a gestão das pedreiras existentes, verificando e validando os dados obtidos e os métodos e metodologias utilizados. Com base nos dados adquiridos, na sua análise e modelação 1, 2, 2.5 e 3D, desenvolveu-se uma metodologia expedita, fiável e menos onerosa, para a avaliação de áreas com potencial interesse para a exploração de rochas ornamentais.
The main objective of this study was to evaluate geological / structural massive, through the characterization of the location, types of guidance and frequency of fracturing, the quality and quantity of the lithological types present, shaping its provisions and spatial interrelationships. For this purpose, it was planned several data collection campaigns: Geophysical prospecting campaigns using the Transient Electromagnetic Method [TEM]) in the defined area of study; Geological / structural survey campaigns with the aim of mapping the fracturing and associated structures, geology and its stratigraphic aspects; Much of the work done was carried out in parallel with the progression of the mining activity, which allowed a better understanding of the relationship between the structures, data from tests carried out and the development of planning carried out; Campaigns for aerial surveys, using the use of unmanned aerial vehicle [UAV], use of photogrammetry for geological / structural evaluation. as well as laboratory analysis work: Analysis of surveys carried out in the study area; Remote sensing data analysis. The choice of the area where the location of the work performed was considered the possibility of correlating the acquired data and its relationship with the management of existing quarries, verifying and validating the acquired data and methods and methodologies used. Based on the data acquired, analysis and modeling 1, 2, 2.5 and 3D, an expedited methodology was developed for the evaluation of areas with potential interest for the exploration of ornamental rocks.
Israel, Martin. "Entwicklung eines UAV-basierten Systems zur Rehkitzsuche und Methoden zur Detektion und Georeferenzierung von Rehkitzen in Thermalbildern: Der Fliegende Wildretter." Doctoral thesis, 2016. https://repositorium.ub.uni-osnabrueck.de/handle/urn:nbn:de:gbv:700-2016120515171.
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