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Praktična primerjava metod 3D zajema objektov
ID Lužar, David (Author), ID Lebar, Andrej (Mentor) More about this mentor... This link opens in a new window, ID Valentinčič, Joško (Comentor)

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Abstract
V zadnjih letih je postalo bistveno lažje in bolj priročno zajeti digitalno podobo fizičnih objektov ter okolice. Naprave za zajem so dostopnejše in glede na to, da je sedaj 3D podatke možno že zajemati z določenimi pametnimi telefoni, je mogoče predvideti, da se bo tehnologija še izpopolnjevala in postajala dostopnejša širši javnosti. Pridobljene podatke je mogoče uporabiti na različnih področjih, med drugim pri vzvratnem inženiringu, 3D tiskanju, topološki optimizaciji, kontroli kvalitete, marketingu in projektiranju. Na trgu so dostopne naprave za zajem, ki delujejo na različnih merilnih principih, ki se med seboj razlikujejo po cenovni dostopnosti, natančnosti, hitrosti in seveda namenu uporabe. V okviru magistrskega dela smo zajemali objekte treh velikostnih razredov, in sicer prostor, kip in strojniški kos na dva različna načina. Ta načina sta lasersko skeniranje in fotogrametrija. Končni rezultat zajema je bil oblak točk ali poligonalen model. Pri strojniškem kosu smo na zajetem modelu opravili meritve, ki smo jih primerjali z referenčnimi meritvami. Referenčne meritve smo opravili s tipalom na prenosnem koordinatnem merilnem stroju. Ugotovili smo, da je pri določenih pogojih fotogrametrija na strojniškem kosu lahko primerljiva s tehnologijo laserskega skeniranja.

Language:Slovenian
Keywords:lasersko skeniranje, fotogrametrija, meritve, vzvratni inženiring, kontaktne meritve
Work type:Master's thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FS - Faculty of Mechanical Engineering
Place of publishing:Ljubljana
Publisher:[D. Lužar]
Year:2023
Number of pages:XX, 100 str.
PID:20.500.12556/RUL-148750 This link opens in a new window
UDC:004.352:004.925.84:53.08(043.2)
COBISS.SI-ID:166034691 This link opens in a new window
Publication date in RUL:31.08.2023
Views:598
Downloads:39
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Secondary language

Language:English
Title:Practical comparison of 3D object capture methods
Abstract:
In recent years, it has become significantly easier and more convenient to capture a digital image of physical objects and surroundings. Capturing devices are more accessible and given that it is now possible to capture 3D data with certain smartphones, it can be predicted that the technology will continue to improve and become more accessible to the general public. The obtained data can be used in various fields such as reverse engineering, 3D printing, topological optimization, quality control, marketing, design, etc. There are available capturing devices on the market that work on different measuring principles, which differ from each other in terms of affordability, accuracy, speed and, of course, intended use. In the master's thesis, we covered objects of three size classes (space, statue, mechanical part) in two different ways. These methods are laser scanning and photogrammetry. The final capture result was a point cloud or polygonal model. For the mechanical part, we performed measurements on the captured model, which we compared with reference measurements. Reference measurements were made with a touch probe on a portable coordinate measuring machine. We found that, under certain conditions, photogrammetry on a mechanical part can be comparable to laser scanning technology.

Keywords:laser scanning, photogrammetry, measurements, reverse engineering, contact measurements

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