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 33 for “"three-dimensional data"”.
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Motion estimation from three-dimensional data
… for the matching and motion estimation from 3-D data are introduced. First, various versions of the algorithms are classified into four levels based on the availability of the constraints such as object rigidity, point features, and matching correspondences. Then, at each level, several new …
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Automated interpolation of two-dimensional seismic profiles into three-dimensional data volumes
Includes bibliographical references (pages 165-166).
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Printing the invisible : bridging the gap between data and matter through voxel-based 3D printing
… to the representation and communication of data in ways that are at once efficient and effective. Numerous data types have established unique formats of representation. In the context of three-dimensional (3D) data sets, such information is often presented as a 3D rendering, a video or an …
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Volumetric reconstruction of tissue structure from two-dimensional microscopy images
Cell morphology of tissue is naturally three-dimensional. Most current methods for tissue analysis use two dimensional histological images of the tissue samples, restricting the analysis to 2D. Existing approaches do not provide essential three-dimensional information such as cell volume, shape and …
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Graphical interface for quantitative monitoring of 3D MRI data
… dGEMRIC technique has been used. Prior dGEMRIC data have been two-dimensional. Magnetic resonance equipment can currently produce three-dimensional dGEMRIC data, but software that analyzes three-dimensional data sets is lacking in practicality. This research improved existing software to better …
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Improving ligand discovery using deep learning on three-dimensional structural data
… molecular generation. Incorporating three-dimensional (3D) structural data allows to steer prediction and generation towards 3D-dependant properties that are fundamental in hit identification and lead optimization. In this thesis, I first introduce existing deep learning applications …
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A PHIGS based interactive graphical preprocessor for spatial mechanism analysis and synthesis
… an interactive graphical preprocessor for data input to spatial mechanism analysis and synthesis codes. A goal in the development of this preprocessor is to produce a graphical data input program that is both graphics device-independent and not structured for the input of data to any …
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Efficient Structure and Motion: Path Planning, Uncertainty and Sparsity
… problem in computer vision, the recovery of three-dimensional data from a series of two-dimensional image projections. The first paper investigates an alternative state space parametrization for use with the Kalman filter approach to simultaneous localization and mapping, and shows it has …
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A Novel Method For Determining Acetabular Orientation
… The purpose of this study was to determine the three-dimensional orientation of the entire acetabulum. For this research, an improved programmatic method was developed for determining acetabular orientation using three-dimensional data. Accurate measures of commonly used acetabular orientation …
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Design and implementation of an advanced user interface for three- dimensional conceptual design on CAD/CAM systems
… into the use of interactive methods to create three-dimensional drawings for the conceptual phase of engineering design. Discussion on developing an efficient user interface for conceptual design and techniques for creating three-dimensional sketches is provided. The work also includes design …
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Three-dimensional assessment of dentofacial deformity in children with clefts
… in clinical management; advances in non-invasive three-dimensional imaging; developments in methods of shape analysis. Aim: To assess three-dimensional dentofacial deformity with a view to early appraisal of primary surgical outcome. Results: Significant differences in upper lip morphology were …
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Analyzing perspective views of a wire frame object model
The problem of identifying three dimensional objects from their two dimensional perspective projections is an important one in computer vision. A segmentation procedure is described here to extract features from a simulated image, then a matching procedure which finds the three dimensional objects …
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High-Dimensional Generative Models for 3D Perception
… representing, identifying, and interpreting the three-dimensional data of the real world. Understanding the world's geometric structure by visual data is known as 3D perception. The necessity of analyzing irregular and complex 3D data has led to the development of high-dimensional frameworks for …
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A Visual Approach to Information Systems: An Investigation of the Momentum of Accounting Wealth Changes
This study investigates the relationship between three visual representations (two-dimensional, three-dimensional fixed, and three-dimensional rotatable) of multidimensional data, and the subjects' ability to make predictions based on the data. Output of a momentum accounting system was simulated …
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The essence of FIA: a study of the distribution of foliation intersection axes data and its significance from hand sample to regional scales
… garnet porphyroblasts. For the first time, the three-dimensional geometry of these features is shown as an animation, a stereo pair, a VRML model and two-dimensional sections. The spatial resolution of the data in this study, approximately 10 μm, is high enough to resolve inclusions, and finer …
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Textile precision for customized assemblies
… textile machines lack the ability to transfer three-dimensional information between digital models and production with the same level of control and accuracy as other machines. Designers are accustomed to generating three-dimensional objects in a digital model then converting these into …
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Automated Characterization of Bridge Deck Distress Using Pattern Recognition Analysis of Ground Penetrating Radar Data
… radar systems. These two systems generate three-dimensional data that provide a representation of features that lie below the bridge deck surface. Both of these systems produce large amounts of data for an individual bridge deck, which makes automated data processing very desirable. The …
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Automated shape analysis and visualization of the human back.
… assessment on the shape of back surface. Though three-dimensional data acquisition methods exist, techniques to extract relevant information for clinical use have not been widely developed. Thi's thesis presentsthe content and progression of research into automated analysis and visu-alization of …
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Dreidimensionale Rekonstruktion transösophagealer zweidimensionaler Schnittbilder zur quantitativen Analyse von Vorhofseptumdefekten vom Sekundum-Typ
… was to examine the value of the transesophageal threedimensional echocardiography for this purpose. Three-dimensional reconstruction of transesophageal echocardiography was performed in 17 patients. Left-to-right shunt (by oxymetrie in 16 of the 17 patients) was 2.4 to 16.2 L/min, and the QP/QS …
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