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 60 for “"motion model"”.
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A Free-Breathing Lung Motion Model
… from error in delivery of radiation due to organ motion during breathing remain a significant issue. To compensate the breathing motion during the treatment, a free breathing lung motion model, x= x0+αv+βf, was developed and discussed, where x is the position of a piece of tissue located at …
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Improving Reno Earthquake Hazard Assessment Through a Ground-Motion Model Analysis and Paleoseismic Study
… of the four NGA-West2 (2014) Active Crustal models, which are trained on a global dataset of ground motion recordings, in the context of the Reno area. We compare the NGA-West2 model estimates with a new dataset of ground motion measurements derived from seismic recordings for 512 earthquakes …
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Advancing the intravoxel incoherent motion model as a tool for quantifying brain microvascular health
… humans, noninvasive techniques are required. One model for measuring microvascular blood flow is the intravoxel incoherent motion (IVIM) model of pseudodiffusive blood flow. In this work, a set of IVIM-derived microvascular biomarkers are pro- posed to quantify the mean microvascular blood …
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Motion Estimation and Motion-Compensated Reconstruction for Four-Dimensional Cone Beam Computed Tomography (4D-CBCT)
… by the respiration, respiration induced motion becomes the principal cause for tumor localization uncertainty and four dimensional (4D) cone beam computed tomography (CBCT) has been developed to locate tumor in each respiration phase to better estimate the possible motion range of the …
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Stochastic Theory of Desorption Reactions (Brownian Motion)
A Brownian motion model is used to study the escape of a molecule from a physisorbed state into a dense fluid.
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Exploiting object dynamics for recognition and control
… derive a classifier based on the characteristic motion of local features across the sweep. It is shown that this motion model reveals structural information about the object that can be exploited for recognition. The main contribution of this thesis is a recognition system that extends invariant …
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Modeling of nonstationary earthquake ground motion and biaxial and torsional response of inelastic structures
… of ground excitation. A new stochastic ground motion model is proposed in which both intensity and frequency content are functions of time. Corresponding methods for estimating the model parameters based on actual earthquake records are also given. The proposed ground motion model can be …
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Simultaneous Estimation and Modeling of State-Space Systems Using Multi-Gaussian Belief Fusion
… a framework for simultaneous estimation and modeling (SEAM) of dynamic systems using non-Gaussian belief fusion by first presenting the relevant fundamental formulations, then building upon these formulations incrementally towards a more general and ubiquitous framework. Multi-Gaussian belief …
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Effect of Ground Motion Characteristics on the Seismic Response of Torsionally Coupled Elastic Systems
… investigation of the effects of ground motion characteristics, especially its multi-directional character, on the response of torsionally coupled elastic structural systems. The ground motion model is probabilistic and is founded on the assumption of the existence of ground motion …
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Realistic Motion Estimation Using Accelerometers
… that automatically perform realistic human motions with high speed at low monetary cost. So far, full body motion estimation of human complexity remains an important open problem. We propose a realistic motion estimation framework to control the animation of 3D avatars. Instead of relying on …
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Robot Motions that Mitigate Uncertainty
… of uncertainty, specifically focusing on robot motion decisions in the context of deep learning-based perception uncertainty. The first part of this dissertation introduces a risk-aware framework for path planning and assignment of multiple robots and multiple demands in unknown environments. …
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Path Planning for Unmanned Air and Ground Vehicles in Urban Environments
… in an urban grid. We discuss using a target motion model based on Markov chains to predict future target locations. We then introduce the Capture and Propagate algorithm, which uses this target motion model to determine the probabilities of capturing the target in various numbers of steps and …
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Option Pricing in Non-Competitive Markets
… and exotic options) under the supply curve model in a geometric Brownian motion model is studied. In Chapter 3, local risk minimization method is used to pricing European options with liquidity cost in a jump-diffusion model. In chapter 4, utility indifference pricing method is applied to …
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Object Detection and Tracking Using Uncalibrated Cameras
… the object over frames and analyzing object's motion and behavior. The approach contains two stages. First, the problem of camera calibration using a calibration object is studied. This approach retrieves the camera parameters from the known locations of ground data in 3D and their …
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Numerical simulation of optical wave propagation through random media
… medium, a simplified version of the random-motion model [77] is used, and for wave-propagation calculation the wave-kinetic numerical method and/or the angular-spectral representation of the Huygens-Fresnel diffraction formula are used. For the wave-kinetic numerical method, several …
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Locating senior walking frame users in crowded indoor environments
… The residents are to use walking frames for locomotion, thus their motion is relatively slow and predictable. The resolution of localization is considered adequate if the care supervisor is able to locate a given person through visual contact relative to the estimated location. This thesis …
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An Integrated Framework Enhanced With Appearance Model for Facial Motion Modeling, Analysis and Synthesis
… intelligent video surveillance. Computational models for face analysis and synthesis are useful for both basic research and practical applications. In this dissertation, we present a unified framework for 3D face motion modeling, analysis and synthesis. We first derive a compact geometric …
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Systems of Visualization for Musical Futures
… MIDI-conditioned, Transformer-based hand-motion model with deterministic, pattern-based mappings that signal states such as resting and regeneration. Audience surveys indicate that viewers perceived links between musical turns and kinetic gestures while requesting clearer explanatory cues. …
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Modeling Dynamic Ground Reaction to Predict Motion of and Loads on Stranded Ships in Waves
… There has been very little research on the motions of and loads on a grounded ship in waves. In this thesis, a model of the ground reaction forces due to the steady state motions of a grounded ship is developed. This model is derived from civil engineering applications but tailored to the …
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