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X線CT画像におけるメタルアーチファクトの低減アルゴリズム
http://hdl.handle.net/10091/3821
http://hdl.handle.net/10091/3821367199e9-8a04-4e6d-ad1a-b75cf0a215d6
名前 / ファイル | ライセンス | アクション |
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110006153359.pdf (1.0 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2010-01-21 | |||||
タイトル | ||||||
言語 | ja | |||||
タイトル | X線CT画像におけるメタルアーチファクトの低減アルゴリズム | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題 | Nondestructive Inspection, Shape Measurement, Image Processing, X-ray CT, Metal Artifact, Inverse Problem | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
その他(別言語等)のタイトル | ||||||
その他のタイトル | CT Image Reconstruction Algorithm to Reduce Metal Artifact | |||||
著者 |
小関, 道彦
× 小関, 道彦× 橋本, 周平× 佐藤, 慎平× 木村, 仁× 伊能, 教夫 |
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信州大学研究者総覧へのリンク | ||||||
氏名 | 小関, 道彦 | |||||
URL | http://soar-rd.shinshu-u.ac.jp/profile/ja.ZenFupLV.html | |||||
出版者 | ||||||
出版者 | 社団法人日本機械学会 | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 日本機械学会論文集. A編. 72(724):1888-1894 (2006) | |||||
書誌情報 |
日本機械学会論文集. A編 巻 72, 号 724, p. 1888-1894, 発行日 2006-12 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Micro-computed tomography (μCT) is quite useful for nondestructive evaluation of devices with complicated internal structures. However, large difference in X-ray absorption coefficients of materials produces streak and star pattern artifacts in the CT images. The artifact, which is called "metal artifact", makes it difficult to inspect the image of the device. This study aims to develop a new reconstruction method to reduce the artifacts from the images. In this paper, we firstly point out the cause of the artifacts using CT data of a sample. Next, we propose a CT reconstruction algorithm to reduce the artifacts. The basic idea of the algorithm is to correct the projection data. Shapes of high density parts such as metals are extracted by a threshold method and projection data are replaced to consistent values. We apply the method to some devices and confirm availability for the nondestructive inspections. | |||||
資源タイプ(コンテンツの種類) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Article | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0387-5008 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN0018742X | |||||
異版である | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | URI | |||||
関連識別子 | http://ci.nii.ac.jp/naid/110006153359/ | |||||
権利 | ||||||
権利情報 | Copyright (c) 2006 社団法人 日本機械学会 | |||||
権利 | ||||||
権利情報 | 本文データは学協会の許諾に基づきCiNiiから複製したものである | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |