Název:
On Sparsity in Bayesian Blind Source Separation for Dynamic Medical Imaging
Autoři:
Tichý, Ondřej Typ dokumentu: Příspěvky z konference Konference/Akce: Rektorysova Soutěž, Praha (CZ), 2014-12-3
Rok:
2014
Jazyk:
eng
Abstrakt: Dynamic medical imaging is concerned with acquisition and analysis of a sequence of images of the same region of a body during time. In nuclear medicine, each pixel of an image is the sum of particles coming from an applied radioactive tracer from the body in a specific time-interval. Hence, each observed image is a superposition of an unknown number of underlaying organ images. The aim of blind source separation is to separate the images of biologic organs and related time-activity curves from the sequence of images.
Klíčová slova:
blind source separation; dynamic medical imaging; sparsity constraint Číslo projektu: GA13-29225S (CEP) Poskytovatel projektu: GA ČR Zdrojový dokument: Rektorysova Soutěž