Browse by Author "Umeki, Robyn T."
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Applying synthetic aperture, coded excitation, and tissue harmonic imaging techniques to allow ultrasound imaging with a virtual source Umeki, Robyn T. (2011-08-25)A focused transducer will concentrate its signal energy at its focus, producing a clear image of objects at that depth. However, spatial resolution and signal strength deteriorate away from the transducer’s focus. Therefore, ...