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Conferences > SRS > 1983 > FA > FA7
  • Topical Meeting on Signal Recovery and Synthesis with Incomplete Information and Partial Constraints
  • Technical Digest Series (Optica Publishing Group, 1983),
  • paper FA7
  • •https://doi.org/10.1364/SRS.1983.FA7

The Use of A Priori Information In Image Reconstruction From Limited Data

B.P. Medoff, W.B. Brody, and A. Macovski

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Abstract

Image reconstruction algorithms implemented on existing CT scanners require the collection of line integrals that are evenly spaced over 360 degrees.1 In many practical situations, requirements for high temporal resolution or the presence of an x-ray opaque structure prevent the measurement of all the line integrals. Attempts to use existing algorithms in this "limited data" situation result in images with severe streak artifacts.2

© 1983 Optical Society of America

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