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| Presentation | 2008-01-25 16:35 Reduction of Ring Artifacts in Cone-Beam CT images Guifang Duan, Yen-Wei Chen (Ritsumeikan Univ.), Xian-Hua Han (Ritsumeikan Univ./Central South Univ. of Forestry & Tech.), Akinori Fujita, Ken Hirooka, Yoshihiro Ueno (Shimadzu)  MI2007-105 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Cone-beam CT (CBCT) scanners are based on volumetric tomography, using a 2D extended digital array providing an area detector [1]. Compared to traditional CT, CBCT has many advantages, such as less X-ray beam limitation, high image accuracy, Rapid scan time, etc. However, In CBCT images there are always some ring artifacts that appear as rings centred on the rotation axis. Due to the data of the constructed images are corrupted by these ring artifacts, qualitative and quantitative analysis of CBCT images will be compromised. Post processing and application such as image segmentation and registration also turn more complex as the presence of such artifacts. In this paper, a method with a novel region of interest (ROI) building technique is presented. It deals with the reconstructed CBCT image and can effectively reduce such ring artifacts. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | CBCT images / ring artifact reduction / region of interest / mean filter / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 461, MI2007-105, pp. 227-233, Jan. 2008. | |
| Paper # | MI2007-105 | |
| Date of Issue | 2008-01-18 (MI) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | MI2007-105 |
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| Conference Information | |
| Committee | MI |
| Conference Date | 2008-01-25 - 2008-01-26 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Naha-Bunka-Tenbusu |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Medical Imaging |
| Paper Information | |
| Registration To | MI |
| Conference Code | 2008-01-MI |
| Language | English (Japanese title is available) |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Reduction of Ring Artifacts in Cone-Beam CT images |
| Sub Title (in English) | |
| Keyword(1) | CBCT images |
| Keyword(2) | ring artifact reduction |
| Keyword(3) | region of interest |
| Keyword(4) | mean filter |
| Keyword(5) | |
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| 1st Author's Name | Guifang Duan |
| 1st Author's Affiliation | Ritsumeikan University (Ritsumeikan Univ.) |
| 2nd Author's Name | Yen-Wei Chen |
| 2nd Author's Affiliation | Ritsumeikan University (Ritsumeikan Univ.) |
| 3rd Author's Name | Xian-Hua Han |
| 3rd Author's Affiliation | Ritsumeikan University (Ritsumeikan Univ./Central South Univ. of Forestry & Tech.) |
| 4th Author's Name | Akinori Fujita |
| 4th Author's Affiliation | SHIMADZU CORPORATION (Shimadzu) |
| 5th Author's Name | Ken Hirooka |
| 5th Author's Affiliation | SHIMADZU CORPORATION (Shimadzu) |
| 6th Author's Name | Yoshihiro Ueno |
| 6th Author's Affiliation | SHIMADZU CORPORATION (Shimadzu) |
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| Speaker | Author-1 |
| Date Time | 2008-01-25 16:35:00 |
| Presentation Time | 10 minutes |
| Registration for | MI |
| Paper # | MI2007-105 |
| Volume (vol) | vol.107 |
| Number (no) | no.461 |
| Page | pp.227-233 |
| #Pages | 7 |
| Date of Issue | 2008-01-18 (MI) |
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