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dc.contributor.advisorJones, Lewys
dc.contributor.authorGannon, Edward Byron
dc.date.accessioned2023-07-27T15:56:30Z
dc.date.available2023-07-27T15:56:30Z
dc.date.issued2023en
dc.date.submitted2023
dc.identifier.citationGannon, Edward Byron, Evaluation of 3D Photogrammetry Tools for Applications in the Scanning Electron Microscope, Trinity College Dublin, School of Physics, Physics, 2023en
dc.identifier.otherYen
dc.identifier.urihttp://hdl.handle.net/2262/103154
dc.descriptionAPPROVEDen
dc.description.abstract3D models find application in a range of materials science areas, from fractography and failure studies to 3D printed metal topology. Atomic force microscopy (AFM) is commonly used for measuring surface topology, though this is limited to relatively flat surfaces and by tip geometry. However, 3D data can be obtained from scanning electron microscope (SEM) images via quadrant detectors (“shape from shading”), stereo pair reconstructions or photogrammetric datasets. Photogrammetry constructs 3D models from several 2D images at different viewpoints through the use of a number of mathematical algorithms to extract the scene’s geometry. With the reconstruction only requiring 2 or more 2D images, standard SEM imaging can be used in place of digital photography, and without requiring specialised hardware. The widespread popularity of photogrammetry has created an upsurge in reconstruction software, both commercial and open source, whose rapid advancements can be leveraged for SEM applications. Photogrammetry, however, can be a time consuming and expensive process, depending on the sample being imaged and the software used for model reconstruction. We demonstrate an efficient method for ‘microscopy for photogrammetry’, developing a framework for selecting imaging parameters to ensure a satisfactory photogrammetric data set is acquired. This results in a practical and accessible procedure for reconstructing 3D microscale structures using open-source photogrammetry software in the SEM.en
dc.language.isoenen
dc.publisherTrinity College Dublin. School of Physics. Discipline of Physicsen
dc.rightsYen
dc.subjectInstrument developmenten
dc.subjectScanning electron microscopyen
dc.subjectPhotogrammetryen
dc.subject3D imagingen
dc.titleEvaluation of 3D Photogrammetry Tools for Applications in the Scanning Electron Microscopeen
dc.typeThesisen
dc.contributor.sponsorEPSRC-SFI Centre for Doctoral Training in Advanced Characterization of Materialsen
dc.type.supercollectionthesis_dissertationsen
dc.type.supercollectionrefereed_publicationsen
dc.type.qualificationlevelDoctoralen
dc.identifier.peoplefinderurlhttps://tcdlocalportal.tcd.ie/pls/EnterApex/f?p=800:71:0::::P71_USERNAME:GANNONEDen
dc.identifier.rssinternalid257318en
dc.rights.ecaccessrightsopenAccess
dc.contributor.sponsorGrantNumber18EPSRC-CDT3581en


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