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 12 of 12 for “"statistical shape model"”.
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Localization of Human Pelvis Anatomical Coordinate System Using Ultrasound Registration to Statistical Shape Model
… propose to replace pre-operative imaging with a statistical shape model (SSM) of the pelvis which is constructed from CT images of patients. An automatic deformable registration of a pelvis anatomical shape model to a sparse set of 2D ultrasound images of the pelvis is presented in order to …
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3D approximation of scapula bone shape from 2D X-ray images using landmark-constrained statistical shape model fitting
… from 2D X-ray images using landmark-constrained statistical shape model fitting. First, X-ray stereophotogrammetry was used to reconstruct the 3D coordinates of points located on 2D X-ray images of the scapula, acquired from two perspectives. A suitable calibration frame was used to map the image …
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3-D facial expression representation using statistical shape models
… facial expressions. One is based on the shape space vector (SSV) of the statistical shape model (SSM); the other is based on the SSV of the B-spline statistical shape model (BSSM). The first proposed method uses the SSV of the SSM as a significant feature for representing facial …
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Statistical Shape Modeling to Quantify Variation in the Proximal Humeral Anatomy
… The objective of this thesis was to develop a Statistical Shape Model (SSM) of the cortical and cancellous bone regions of the proximal humerus, and to assess potential shape differences with gender and ethnicity, with a goal of informing implant design. An SSM was used and Principal Component …
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Prediction of Root Form Using Crown Data: Mandibular Left First Premolar
… The purpose of this study was to determine if a statistical shape model (SSM) of the lower left first premolar, consisting of both crown and root data, could adequately describe the root form from a surface scan consisting of only crown data. Secondly, it tested if there were any angles or …
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Identification of in vivo material properties of ascending thoracic aortic aneurysm: towards noninvasive risk assessment
… and matching tissue samples. To describe the shape probability distribution, statistical shape model (SSM) was built from ATAA geometries. A machine learning (ML) approach was investigated for fast in vivo material property identification (i.e., within seconds), virtual geometries sampled from …
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Statistical Modeling to Investigate Anatomy and Function of the Knee
… in this dissertation is a demonstration of statistical modeling approaches to evaluate population variability in anatomy of the knee and function of its tibiofemoral (TF) and patellofemoral (PF) joints. Three-dimensional (3D) computational models of the bone and cartilage in the knee were …
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Development of Novel Hearing Aid Technologies
… aid design have been identified and the areas of shape design and venting have been explored. Proposed is an alternative multiple venting configuration incorporating multiple small acoustic vent paths. In order to design universal hearing aid products one must first have an understanding of the …
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Tibial-fibular morphology: variation, sexual dimorphism, and mechanical implications
… a combination of advanced medical imaging, statistical approaches, gait data, and the finite element method to characterise and quantify covariations in whole-bone tibial-fibular geometry and density distributions and their influence on bone strain. Transverse diaphyseal geometry and …
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Computational simulation of bone remodelling post reverse total shoulder arthroplasty
… and trabeculae architecture - a process termed remodelling. Implanted orthopaedic devices can significantly alter the loading on the surrounding bone. In addition, these devices rely on bone ingrowth to ensure secure implant fixation. In this project, a computational model that accounts for bone …
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Anatomy, Implant Selection and Placement Influence Spine Mechanics Associated with Total Disc Replacement
… in this thesis was to develop a suite of statistical and computational tools describe population-based anatomy and to support component selection and placement in TDR surgical procedures with the goal of improving implant design and patient outcomes.</p> <p>The statistical modeling …
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Learning Clinical Body Composition Metrics from 2D and 3D Optical Imaging
Accurate human body shape representation has many applications within computer graphics including 3D animation, virtual tailoring, ergonomic engineering, and virtual reality reconstruction. For clinical researchers working at the intersection of computer graphics, machine learning, and …