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Integrated correction for cone-beam computed tomography artifacts based on digital radiography model

  • Northwestern Polytechnical University Xian

科研成果: 书/报告/会议事项章节会议稿件同行评审

1 引用 (Scopus)

摘要

The main manifestations of artifacts and their causes in Cone-Beam Computed Tomography (CBCT) system were studied, and then the general CBCT Digital Radiography (DR) imaging model was described with a mathematical expression. On this basis, a new expression of DR imaging model was proposed according to the actual imaging noise and enforceability of corrective action, and so the projection image was decomposed into dark field, gain, scattering and transmission. According to the model, the integrated projection image artifact corrections were processed on the order of dark field correction, gain non-uniformity correction, scattering correction and beam hardening correction, to avoid the onesidedness of only correcting a certain kind of artifact. Experimental result shows that the method can basically eliminate the artifacts caused by DR imaging in the CBCT system.

源语言英语
主期刊名2009 IEEE International Workshop on Imaging Systems and Techniques, IST 2009 - Proceedings
出版商IEEE Computer Society
100-104
页数5
ISBN(印刷版)9781424434831
DOI
出版状态已出版 - 2009
活动2009 IEEE International Workshop on Imaging Systems and Techniques, IST 2009 - Hong Kong, 中国
期限: 11 5月 200912 5月 2009

出版系列

姓名2009 IEEE International Workshop on Imaging Systems and Techniques, IST 2009 - Proceedings

会议

会议2009 IEEE International Workshop on Imaging Systems and Techniques, IST 2009
国家/地区中国
Hong Kong
时期11/05/0912/05/09

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