Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 44 for “"3D Scanning"”.
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Image-based 3D scanning system using opacity hulls
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2003.
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High Accuracy Mobile 3D Scanning Using Structured Laser Beam Patterning
… of calculating nutritional information by using 3D reconstruction and image processing. This system is called Dietary Data Recorder System (DDRS), which consists of a smartphone, a laser projector, and the main algorithm, which extracts the data from the DDRS for volume and nutritional …
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Machine-vision assisted 3D printing
I augmented a 3D printer with software for a 3D scanning system in order to incorporate feedback into the printing process. After calibration of the scanning system and the printer, the 3D scanning system is capable of taking depth maps of the printing platform. The two main extensions of 3D …
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Arbitrarily-controllable programmable aperture light field cameras : design theory, and applications to image deconvolution & 3-dimensional scanning
… "Programmable Deconvolution," as well as to 3D scanning and super-resolution imaging. The use & performance of ACPA cameras in these applications is explored both in theory and with experimental results. Additionally, a framework for ACPA camera design for optimal 3D scanning is described.
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Shifting Paradigm: A Detailed Exploration of 3D Technology in Museums
<p>This thesis explores the impact of 3D technology on the overall museum experience. Detailed analysis of the current utilization of 3D scanning and printing in the areas of exhibition, conservation, research, accessibility, education, and programming, has yielded informed findings on the …
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Investigations into the Form and Design of an Elbow Exoskeleton Using Additive Manufacturing
… exoskeleton. Many advanced methods are explored: 3D scanning, generative design, soft material, compliant joint, additive manufacturing, and 3D latticing. The experiments on TPU kerf cut found that the stress-strain curve of the sample can be modified by changing the cut pattern, it is even …
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Optical coherence tomography applied to investigations of optical properties of paintings
Optical Coherence Tomography (OCT), a fast 3D scanning Michelson interferometer normally applied to biomedical applications has recently been applied to art related subjects. In this thesis, the various applications of OCT to the non invasive imaging of paintings are explored in detail. The …
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Nightmare Runner: A Personalized Avatar and Physical Activity Game
… body through the Microsoft Kinect. A process of 3D scanning a person in order to use them as avatars in a game was developed and the feasibility and benefits of using such personalized avatars in game was tested. Lastly, a physical activity game that serves as a wrapper for both the proposed …
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Analyzing the Consistency of Scoring Porotic Hyperostosis From 3D Scans
<p>The use of 3D scans is becoming more and more common in the field of bioarchaeology. They alleviate the need to travel, allow for larger sample sizes, and can help preserve bones with pathologies on them which make them more fragile. Though there are major benefits with using 3D scanning of …
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Gaming and the simulation of history constructing perspectives of Machu Picchu
… work, Bingham's materials were integrated into a 3D game environment. Taking-part in a collaborative project for 3D-scanning of Machu Picchu, on-site work produced accurate models of sections of the site. The 3D models became a basis-layer for my prototype, a hybrid of game and digital archive, …
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Reconstruction and analysis of dynamic shapes
… small set of surface points. On the other hand, 3D scanning techniques digitize complete surfaces of static objects, but are not applicable to moving shapes. I present methods that overcome both limitations, and can obtain the moving geometry of dynamic shapes (such as people and clothes in …
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Augmenting complex surfaces with projector-camera systems
… include camera calibration, structured light 3D scanning and surface augmentation. This work demonstrates the technical and practical feasibility of appropriating complex surfaces as information displays; hopefully encouraging a future where a display device is no longer a discrete entity, but …
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3D anthropometry: quantifying the shape and size variability within the UK male offshore oil and gas workforce.
… offshore workers, employing the latest portable 3D scanning technology, to quantify size and shape change associated with weight increase and identify differing physique groups among the sample. Method: 588 male offshore workers within seven pre-determined weight categories were scanned, using …
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Three-dimensional free-hand ultrasound imaging system for medical applications
This thesis has developed a PC-based 3D free-hand ultrasound system using conventional ultrasound scanner. The 3D ultrasound system developed is used for carotid and brachial artery scanning to evaluate vessel wall characteristics, which have strong relationship to traditional atherosclerotic risk …
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Remixing physical objects through tangible tools
… can bridge this gap by both integrating 2D and 3D scanning technology into design tools and employing aordable rapid prototyping technology to materialize these remixed objects. In so doing, we hope to promote copying as a tool for creation. This document presents two tools, CopyCAD and KidCAD, …
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Medium Resolution
… from afar. Extrude, trim, revolve, array. The 3D modeling software used by the architect contains analogs to the machine processes and abundances of industrial production. However, as we increasingly face the effects of the excesses of the Anthropocene and related disruptions to the building …
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An experimental study on the effects of adverse weathers on the flight performance of an Unmanned-Aerial-System (UAS)
… and vertical tail were preserved for the 3D scanning in the laboratory to quantify the 3-D shapes of the accreted ice structures. While the glaze icing on the UAS propeller resulted in the formation of ice horns and ridges, the main wing of the UAS had mostly leading-edge icing with the …
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Body size, skeletal biomechanics and habitual behaviour: a bioarchaeological approach to social and economic change in the Neolithic and Copper Age central Mediterranean
… This research uses metric data derived from 3D models of humeri, femora and tibiae in 17 human skeletal assemblages from across the central Mediterranean and features comparative analysis with a large sample of individuals spanning the Upper Palaeolithic to Modern periods. The application of …
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Reparative Preservation through Immersive 3D Documentation: Cultural Memory, Spatial Justice, and Gullah Geechee Futures on Daufuskie Island
… enclosure—the project co-creates Daufuskie3D (https://daufuskie3d.org/), an interactive website that presents annotated 3D scans, oral histories, ambient videos, and symbolic interface design rooted in Gullah epistemologies. It is guided by two research questions: How can immersive …
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