https://www.csc.univie.ac.at/team/
Thu, May 16, 2024, 9:00-10:00 am PST via Zoom
Title: Diffraction tomography and its application in ultrasound imaging.
Abstract: Diffraction tomography (DT) addresses an inverse scattering problem within the framework of the first Born approximation, enabling efficient computations and hence application in ultrasound computed tomography.
However, in conventional DT, the incident wave is assumed to be a monochromatic plane wave. This is an unrealistic simplification in medical ultrasound imaging where a transducer typically emits focused beams to a region of interest in the human body. In this talk, I will present our recent results aimed at extending conventional DT to the use of focusing ultrasound transducer arrays. This new focused illumination approach enables new measurement geometries for data acquisition in DT, on the basis of which we develop reconstruction methods. These are then comprehensively evaluated through numerical experiments.
This talk is based on a joint work with Clemens Kirisits and Otmar Scherzer.