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.
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Showing 1 to 11 of 11 for “"Image-based modeling"”.
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High-Fidelity Image -Based Modeling
Image-based modeling is the process of automatically acquiring geometric object and scene models from photographs or video clips. This dissertation addresses three core problems in image-based modeling: static scene reconstruction, high-fidelity camera calibration, and dynamic scene reconstruction. …
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A system for image-based modeling and photo editing
… a collection of lights. Recently, techniques for modeling and rendering scenes from a set of pre-acquired images have emerged as an alternative approach, known as image-based modeling and rendering. Much of the research in this field has focused on reconstructing and rerendering from a set of …
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IMAGE-BASED MODELING AND PREDICTION OF NON-STATIONARY GROUND MOTIONS
… paper describes a nonparametric approach for modeling and prediction of non-stationary ground motions. Using Relevance Vector Machines, a regression model which takes as input a set of seismic predictors, and produces as output the expected evolutionary power spectral density, conditioned on …
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A study of Symmetric and Repetitive Structures in Image-Based Modeling
… 3D digital models from street-view imagery has many important applications and involves fundamental vision problems. We investigated the paradox of having similar or repetitive structure in the input image data. In general, prior knowledge of structure regularity helps with the …
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Image-Based Modeling of Porous Media Using FEM and Lagrangian Particle Tracking
… and CO2 sequestration. Pore-scale imaging and modeling is one of the techniques used to investigate these fundamental mechanisms. Although extensive development of pore-scale imaging and modeling has occurred recently, some areas still need further advances. In this work, we address two areas: …
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Automated image-based 3D reconstruction system for precise plant modeling
Plant modeling has been an interesting topic in computer graphics for decades because of the growing demand for realistic plants in video games or movies. It also attracts researchers in crop science to digitize real plants for scientific research. However, a plant is a hard object to model due to …
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Image-Based Pore-Scale Modeling of Inertial Flow in Porous Media and Propped Fractures
… oil and gas production in hydraulic fractures. Image-based pore-scale modeling is a powerful approach to obtain macroscopic transport properties of porous media, which are traditionally obtained from experiments and understand the relationship between fluid dynamics with complex pore geometries. …
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Model-based metrics for assessing completeness and accuracy for 3D image-based reconstruction methods
… of the real world from a set of unordered images using a pinhole camera model. Due to a wider availability of cameras, the availability of commodity smart phones and tablets equipped with cameras, and enhanced computational power, more attention is now being given to leverage visual data …
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Data-Driven Detection of En-route Convective Weather Avoidance and Development of a Weather Assessment Model
… data-driven approaches to weather avoidance modeling and introduces an image-based modeling paradigm. At present, there is limited ability to examine historical aviation operations and automatically identify when aircraft deviated due to convective weather blocking the intended route. In …
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Numerical studies of flow in porous media using an unstructured approach
… imaging technologies with computational modeling has seen the development of fundamental pore-scale techniques for studying flow in porous media. Image-based pore-scale modeling of transport phenomena has become an important tool for understanding the complicated relationships between …