Am
Donnerstag, dem 15.12.2016 findet im Konferenzraum der ExFa (1. Stock) ab 14.00 Uhr
das Medical Reconstruction Seminar statt.
Vortragender: Richard Bismark
Vortragstitel: Polychromatic Statistical Reconstruction
Abstract
Computed tomography imaging relies on the interaction between X-rayphotons and matter. The absorption properties of X-ray photons are varying over the photon energy and material contribution. Commonly used X-ray sources produce radiation over a large interval of photon energy. The different absorbtion properties of the measurement process are not taken into account in widely used CT reconstruction procedures. This leads to well-known beam-hardening artifacts as cupping or streaks. To get rid of such artifacts, a more sophisticated model has to be considered. This session will have a short mathematical introduction into the CT problem and an insight in the polychromatic model and the statistical reconstruction technique which is proposed to solve those problems.
Eröffnung
