Dynamic SPECT reconstruction with temporal edge correlation

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autorinnen und Autoren: Burger M
Zeitschrift: Inverse Problems
Verlag: IOP PUBLISHING LTD
Jahr der Veröffentlichung: 2018
Band: 34
Heftnummer: 1
ISSN: 0266-5611


Abstract

In dynamic imaging, a key challenge is to reconstruct image sequences with high temporal resolution from strong undersampling projections due to a relatively slow data acquisition speed. In this paper, we propose a variational model using the infimal convolution of Bregman distance with respect to total variation to model edge dependence of sequential frames. The proposed model is solved via an alternating iterative scheme, for which each subproblem is convex and can be solved by existing algorithms. The proposed model is formulated under both Gaussian and Poisson noise assumption and the simulation on two sets of dynamic images shows the advantage of the proposed method compared to previous methods.


FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Burger, Martin Prof. Dr.
Lehrstuhl für Angewandte Mathematik (Modellierung und Numerik)

Zuletzt aktualisiert 2019-15-02 um 08:08