System Matrix Analysis for Computed Tomography Imaging
#MMPMID26575482
Flores L
; Vidal V
; Verdú G
PLoS One
2015[]; 10
(11
): e0143202
PMID26575482
show ga
In practical applications of computed tomography imaging (CT), it is often the
case that the set of projection data is incomplete owing to the physical
conditions of the data acquisition process. On the other hand, the high radiation
dose imposed on patients is also undesired. These issues demand that high quality
CT images can be reconstructed from limited projection data. For this reason,
iterative methods of image reconstruction have become a topic of increased
research interest. Several algorithms have been proposed for few-view CT. We
consider that the accurate solution of the reconstruction problem also depends on
the system matrix that simulates the scanning process. In this work, we analyze
the application of the Siddon method to generate elements of the matrix and we
present results based on real projection data.