The development of a widely applicable automatic motion coaching system requires one to address a lot of issues including motion capturing, motion analysis and comparison, error detection as well as error feedback. In order to cope with this complexity, most existing approaches focus on a specific motion sequence or exercise. As a first step towards the development of a more generic system, thi...

Oceanographic images obtained from environmental satellites by a wide range of sensors allow characterizing natural phenomena through different physical measurements. For instance Sea Surface Temperature (SST) images, altimetry data and ocean color data can be used for characterizing currents and vortex structures in the ocean. The purpose of this thesis is to derive a relatively complete frame...

PROSTATE INTRAFRACTION MOTION ASSESSED BY SIMULTANEOUS KV FLUOROSCOPY AT MV DELIVERY by JUSTUS D. ADAMSON August 2009 Co-Advisor: Dr. Qiuwen Wu Co-Advisor: Dr. Jay Burmeister Major: Medical Physics Degree: Doctor of Philosophy Purpose: To investigate the use of a gantry mounted kV imager for prostate intrafraction motion measurement during simultaneous dose delivery. Materials & Methods: We dev...

G. Shechter, E. R. McVeigh Department of Biomedical Engineering, Johns Hopkins School of Medicine, Baltimore, MD, United States, Lab of Cardiac Energetics, NHLBI, National Institutes of Health, DHHS, Bethesda, MD, United States Synopsis MRI motion correction is used to improve image quality while reducing total scan time. The Fourier nature of MRI is used to describe a technique for compensatin...

AIM Respiratory motion affects cardiac PET-computed tomography (CT) imaging by reducing attenuation correction (AC) accuracy and by introducing blur. The aim of this study was to compare three approaches for reducing motion-induced AC errors and evaluate the inclusion of respiratory motion correction. MATERIALS AND METHODS AC with a helical CT was compared with averaged cine and gated cine CT...

Subject motion during the time course of functional activation studies has been shown to cause spurious signals which can mimic 'true' activation. Therefore, the importance of motion correction has been widely recognized. Correction with post-processing using image registration software is common practice in functional imaging and analysis. Many image registration algorithms, developed for anal...