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 20 of 85 for “"Surface reconstruction"”.
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Temporal surface reconstruction
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1991.
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3D tooth surface reconstruction
We describe a method to reconstruct the surface of a tooth given partial information about its 3D shape (e.g., crown or root information). The shape and deformations of a set of specimens representative of the kind of tooth to reconstruct are learnt offline through statistical analysis, leading to …
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Fluid surface reconstruction from particles
… simulations. The key idea is to construct a surface that is as smooth as possible while remaining faithful to the particle locations. We describe a mesh-based algorithm that expresses the surface in terms of a constrained optimization problem. Our algorithm incorporates a secondary …
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Surface reconstruction from interferometric ISAR data
… to make the approach broadly effective. The surface reconstruction algorithm based on the noise resistant estimator performs very well, doing much better than a traditional algorithm selected for comparison (3D a-shapes) in high noise situations. The technique based on the visual hull, while …
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Viewpoint invariant surface reconstruction from gradient data
Surface reconstruction recovers complete and coherent surfaces from scattered, noisy data. Viewpoint invariant reconstruction allows seamless combination of multiple views, recognition of objects in arbitrary poses, and consistent quantitative measurements. Viewpoint invariant reconstruction from …
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Toward Controllable and Robust Surface Reconstruction from Spatial Curves
<p>Reconstructing surface from a set of spatial curves is a fundamental problem in computer graphics and computational geometry. It often arises in many applications across various disciplines, such as industrial prototyping, artistic design and biomedical imaging. While the problem has been widely …
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Clinical Applications of Stem Cells in Ocular Surface Reconstruction.
… the ex vivo expansion of stem cells for ocular surface reconstruction. They have also shown that corneal endothelial cells can be cultured successfully on AM and have the potential to treat corneal dystrophies.
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Surface reconstruction of a blast plate using stereo vision
… and hence gives two view geometry. Stereoscopic reconstruction relies on epipolar geometry to constrain the relationship between the views. The 3-D point is then estimated using triangulation of the corresponding points from the two views. The blast plates that are reconstructed have highly …
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Physically-based methods for parametric curve and surface reconstruction
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1994.
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Asymptotically optimal path planning and surface reconstruction for inspection
… inspection problem are (1) path planning and (2) surface reconstruction. On the first problem, we develop a novel analysis of asymptotic optimality of control-space sampling path planning algorithms. This analysis demonstrated that asymptotically optimal path planning for any Lipschitz continuous …
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AMNIOTIC MEMBRANE TRANSPLANTATION FOR OCULAR SURFACE RECONSTRUCTION IN VETERINARY MEDICINE
… widely described in human ophthalmology for the reconstruction of corneal and/or conjunctival surface in different diseases, such as: ocular surface neoplasia, pterygium, chemical and thermal burns, cicatrizing conjunctivitis, symblepharon release, bleb leakage, filtering surgery, persistent …
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Gradient-Based Surface Reconstruction and the Application to Wind Waves
New gradient-based surface reconstruction techniques are presented: regularized least absolute deviations based methods using common discrete differential operators, and spline based methods. All new methods are formulated in the same mathematical framework as convex optimization problems and can …
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Gradient-Based Surface Reconstruction and the Application to Wind Waves
New gradient-based surface reconstruction techniques are presented: regularized least absolute deviations based methods using common discrete differential operators, and spline based methods. All new methods are formulated in the same mathematical framework as convex optimization problems and can …
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Surface reconstruction and display of left ventricular function for pet images
… boundary detection algorithm outlines the object surface and assigns appropriate intensity values to the surface points. The surface is then rotated with the long axis of the heart in a vertical position, allowing the myocardium to be viewed from different angles around the heart. Such a display …
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Dynamic integration of depth cues for surface reconstruction from stereo images
This thesis describes a computational method for surface estimation from stereo images. The images are obtained with a dynamically controlled camera system, having imaging parameters which are selected on the basis of an evolving composite description of the surfaces in the environment. This …
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On-the-fly dense 3D surface reconstruction for geometry-aware augmented reality.
… this thesis, the challenging real-time dense 3D surface reconstruction technologies are studied and reformulated for the reinvention of basic position-aware AR towards geometry-aware and the outlook of context- aware AR. We initially propose to reconstruct the dense environmental surface using …
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Parametric curve and Partial Differential Equation-based parametric surface reconstruction from point clouds
… of representations used to model curves and 3D surfaces in the digital world: explicit and implicit. Explicit representations include parametric representations, poly- gons, and similar methods, while implicit representations encom- pass level sets, distance functions, and Constructive Solid Ge- …
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Dynamic integration of camera motion, multiresolution image acquisition and coarse-to-fine surface reconstruction from stereo
This thesis is concerned with the problem of surface reconstruction from stereo images for large scenes having large depth ranges. An active stereo approach is used in which the scene is systematically scanned, and image acquisition and surface reconstruction are integrated.
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