- Title
- Assessment of the performance of reconstruction processes for computed tomography
- Creator
- Maréchal, P.; Togane, D.; Celler, A.; Borwein, J. M.
- Relation
- 1998 IEEE Nuclear Science Symposium and Medical Imaging Conference. 1998 Nuclear Science Symposium Conference Record, Volume 2. (Toronto, Canada 8-14 November, 1998) p. 1353-1357
- Publisher Link
- http://dx.doi.org/10.1109/NSSMIC.1998.774404
- Publisher
- Institute of Electrical and Electronics Engineers (IEEE)
- Resource Type
- conference paper
- Date
- 1998
- Description
- This paper deals with the assessment of the performance of reconstruction methods for computed tomography, including Filtered Back Projection and ‘entropy-like’ methods. For each of these methods, the influence of errors in the measured data on the reconstructed image is analyzed. A small perturbation of the data vector induces a perturbation of the reconstructed object which can be computed by means of the sensitivity matrix. Using appropriate matrix computation techniques, an upper bound on the size of the reconstruction error is determined, as well as the pattern of noise in the sinogram that will result in the largest reconstruction error. Simulations will illustrate our analysis and demonstrate its utility in the interpretation of computed images and in the selection of reconstruction parameters.
- Subject
- computed tomography; reconstructed images; imaging techniques; Filtered Back Projection; reconstruction parameters
- Identifier
- http://hdl.handle.net/1959.13/940366
- Identifier
- uon:12995
- Identifier
- ISBN:0780350219
- Identifier
- ISSN:1082-3654
- Rights
- Copyright © 1998 IEEE. Reprinted from 1998 Nuclear Science Symposium Conference Record, Volume 2. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of University of Newcastle's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.
- Language
- eng
- Full Text
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