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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Jiyoung Choi Min Woo Kim Won Seong Jong Chul Ye |
| Copyright Year | 2009 |
| Description | Author affiliation: Chungnam National University, 79 Daehangno, Yuseong-gu, Daejon 305-764, Korea (Won Seong) || Bio-Imaging & Signal Processing Lab., Dept. Bio& Brain Engineering, Korea Advanced Institute of Science & Technology (KAIST), 373-1 Guseong-dong Yuseong-gu, Daejon 305-701, Korea (Jiyoung Choi; Min Woo Kim; Jong Chul Ye) |
| Abstract | Metal artifact removal (MAR) has been an important issue in dental X-ray CT due to the presence of metal implant and fillings. The practical use of most existing MAR methods have limitations due to their inherent drawbacks. In this research, we propose a novel MAR algorithm in dental CT. Based on the sparse volume occupation of the metallic inserts, we can formulate the MAR problem as a sparse recovery problem within the compressed sensing framework. One of the main advantages of employing compressed sensing theory in MAR problem is that the sparseness of the metallic objects allows us to reduce the view samples significantly without loss of image quality, accelerating the proposed MAR algorithm drastically. Experimental results using real dental CT scanner measurements show that our algorithm can perform accurate metallic artifact removal very quickly. |
| Starting Page | 334 |
| Ending Page | 337 |
| File Size | 1033443 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781424439317 |
| ISSN | 19457928 |
| DOI | 10.1109/ISBI.2009.5193052 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-06-28 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Compressed sensing Dentistry Computed tomography Signal processing algorithms Image reconstruction Iterative algorithms Implants Signal to noise ratio Interpolation Iterative methods sparsity Metal artifact removal compressed sensing dental X-ray CT |
| Content Type | Text |
| Resource Type | Article |
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