Algorithms For Limited-Angle Computed Tomography

William H. Rowan; Douglas P. Boyd; John L. Couch; Douglas Ortendahl

doi:10.1117/12.934510

1 November 1982 Algorithms For Limited-Angle Computed Tomography

William H. Rowan, Douglas P. Boyd, John L. Couch, Douglas Ortendahl

Proceedings Volume 0372, Physics and Engineering in Medical Imaging; (1982) https://doi.org/10.1117/12.934510
Event: International Workshop on Physics and Engineering in Medical Imaging, 1982, Pacific Grove, United States

Abstract

Limited-angle computed tomography was studied in a project to develop algorithms for a limited-angle scanner. Both the ART algorithm and an orthogonal function algorithm were investigated. The artifact produced by the different methods was very similar. A method is presented for producing model limited-angle artifact in phantom images. Filters are investigated for reducing the artifact, and it is shown that substantial improvement in subjective quality of images can be obtained. This method can be incorporated into limited-angle convolution back-projection algorithms.

Citation Download Citation

William H. Rowan, Douglas P. Boyd, John L. Couch, and Douglas Ortendahl "Algorithms For Limited-Angle Computed Tomography", Proc. SPIE 0372, Physics and Engineering in Medical Imaging, (1 November 1982); https://doi.org/10.1117/12.934510

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