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Fall 2020
This thesis proposes a framework for ground roll removal based on regularized inversion. Both ground roll and reflections are represented in the frequency-space (f - x) domain as a linear function of unknown complex amplitudes. An inversion algorithm is developed to estimate the coefficients that...
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Imaging bone fractures using ultrasonic scattered wavefields: numerical and in-vitro studies
DownloadFall 2011
Ultrasound has been widely used in medical diagnostic imaging to image soft tissues. Compared with other methods, ultrasound is superior with no ionizing-radiation, easy portability, low cost, and the capability to provide elasticity information. Conventional ultrasound images provide distorted...