Diffuse optical tomography (DOT) is an optical imaging
modality, which provides the spatial distribution of the optical
parameters inside a random medium. A propagation back-propagation
method named EM-like reconstruction method for stationary DOT
problem has been proposed yet. This method is really time consuming.
Hence the ordered-subsets (OS) technique for this reconstruction
method is studied in this paper. The boundary measurements of DOT
are grouped into nonoverlapping and overlapping ordered sequence of
subsets with random partition, sequential partition and periodic
partition, respectively. The performance of OS methods is compared
with the standard EM-like reconstruction method with two-dimensional and three-dimensional
numerical experiments. The numerical experiments indicate that
reconstruction of nonoverlapping subsets with periodic partition,
overlapping subsets with periodic partition and standard EM-like
method provide very similar acceptable reconstruction results.
However, reconstruction of nonoverlapping subsets with periodic
partition spends a minimum of time to get proper results.