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Sparse representations for limited data tomography

Publication ,  Journal Article
Liao, HY; Sapiro, G
Published in: 2008 5th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, Proceedings, ISBI
September 10, 2008

In limited data tomography, with applications such as electron microscopy and medical imaging, the scanning views are within an angular range that is often both limited and sparsely sampled. In these situations, standard algorithms produce reconstructions with notorious artifacts. We show in this paper that a sparsity image representation principle, based on learning dictionaries for sparse representations of image patches, leads to significantly improved reconstructions of the unknown density from its limited angle projections. The presentation of the underlying framework is complemented with illustrative results on artificial and real data. ©2008 IEEE.

Duke Scholars

Published In

2008 5th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, Proceedings, ISBI

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Publication Date

September 10, 2008

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1375 / 1378
 

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Liao, H. Y., & Sapiro, G. (2008). Sparse representations for limited data tomography. 2008 5th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, Proceedings, ISBI, 1375–1378. https://doi.org/10.1109/ISBI.2008.4541261
Liao, H. Y., and G. Sapiro. “Sparse representations for limited data tomography.” 2008 5th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, Proceedings, ISBI, September 10, 2008, 1375–78. https://doi.org/10.1109/ISBI.2008.4541261.
Liao HY, Sapiro G. Sparse representations for limited data tomography. 2008 5th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, Proceedings, ISBI. 2008 Sep 10;1375–8.
Liao, H. Y., and G. Sapiro. “Sparse representations for limited data tomography.” 2008 5th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, Proceedings, ISBI, Sept. 2008, pp. 1375–78. Scopus, doi:10.1109/ISBI.2008.4541261.
Liao HY, Sapiro G. Sparse representations for limited data tomography. 2008 5th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, Proceedings, ISBI. 2008 Sep 10;1375–1378.

Published In

2008 5th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, Proceedings, ISBI

DOI

Publication Date

September 10, 2008

Start / End Page

1375 / 1378