TITLE:
Analytical image reconstruction methods in emission tomography
AUTHORS:
Mahsa Noori Asl, Alireza Sadremomtaz
KEYWORDS:
Image Reconstruction; Fourier Transform; Back-Projection; Filtering
JOURNAL NAME:
Journal of Biomedical Science and Engineering,
Vol.6 No.1,
January
31,
2013
ABSTRACT: Data collected in two-dimensional projections give planar images of object at each projection angle. To obtain information along the depth of the object, tomographic images are reconstructed using these projections. There are basically two approaches to solve the problem of reconstruction: analytical and iterative, each one presenting its own advantages and limitations. This paper provides a detailed introduction and comparison to four analytical image reconstruction methods including Fourier transformation, simple back-projection, back-projection filtering and filtered back-projection.