Analytical image reconstruction methods in emission tomography

Mahsa Noori Asl, Alireza Sadremomtaz

Department of Physics, Faculty of Sciences, University of Guilan, Rasht, Iran.

DOI: 10.4236/jbise.2013.61013                

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.

Keywords

Image Reconstruction; Fourier Transform; Back-Projection; Filtering

Conflicts of Interest

The authors declare no conflicts of interest.

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