Analog Reconstruction Methods for Transaxial Tomography

Harrison H. Barrett, William Swindell

Research output: Contribution to journalArticlepeer-review

89 Scopus citations


Transaxial tomography is a radiographic technique that provides an image of an isolated two-dimensional section of a three-dimensional object The basic principles of this technique are reviewed here and the equivalence of various mathematical formulations is shown. The properties of the resulting image for various filter functions are described and the limitations imposed by the quantum statistics of the radiation source are briefly discussed. Then various optical approaches to implementing the reconstruction process are described. The distortions arising from the use of a diverging beam of X-rays are detailed, and some simple modifications of the optical systems are shown to substantially eliminate them.

Original languageEnglish (US)
Pages (from-to)89-107
Number of pages19
JournalProceedings of the IEEE
Issue number1
StatePublished - Jan 1977

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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