Browsing NTNU Open by Author "Tangen, Thor Andreas"
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Coherent Plane-Wave Compounding in Medical Ultrasound Imaging: Quality Investigation of 2D B-mode Images of Stationary and Moving Objects.
Øvland, Ragnhild (Master thesis, 2012)Coherent plane-wave compounding is the coherent summation of several successive plane waves incident at different angles. This thesis presents results from simulations and in vitro and in vivo measurements of stationary ... -
Imaging of Nonlinear Scattering using Dual-frequency Band Ultrasound
Tangen, Thor Andreas (Doctoral Theses at NTNU, 1503-8181; 2010:258, Doctoral thesis, 2010)The work presented in this thesis is focused on developing a method for imaging of nonlinear scattering from stiff particles using dual-frequency band pulses. The pulse complexes are comprised of a low-frequency manipulation ... -
Parallel Techniques for Estimation and Correction of Aberration in Medical Ultrasound Imaging
Herikstad, Åsmund (Master thesis, 2009)Medical ultrasound imaging is a great diagnostic tool for physicians because of its noninvasive nature. It is performed by directing ultrasonic sound into tissue and visualizing the echo signal. Aberration in the reflected ... -
Real Time Delay Estimation and Correction for a new dual Frequency Method in Ultrasound Imaging
Tangen, Thor Andreas (Master thesis, 2006)A new dual frequency ultrasound imaging technique, uses a low frequency pulse to manipulate the propagation velocity and scattering conditions for the high frequency imaging pulse. With this new technique, the non-linearly ...