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
January 1, 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
DOI
Publication Date
January 1, 2008
Start / End Page
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, January 1, 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 Jan 1;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, Jan. 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 Jan 1;1375–1378.
Published In
2008 5th IEEE International Symposium on Biomedical Imaging from Nano to Macro Proceedings Isbi
DOI
Publication Date
January 1, 2008
Start / End Page
1375 / 1378