X線CT画像による不均質体内部の三次元変位場同定

Material type: 文書・図像類

Author: 吉川, 暢宏ほか

Publisher: 社団法人日本機械学会

Publication date: 2004-09-25

Material Format: Digital

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Note (General)：: A material test system combined with X-ray computed tomography (CT) is newly developed for material characterization of biological tissue in non-invas...

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Material Type: 文書・図像類
Title: X線CT画像による不均質体内部の三次元変位場同定
Author/Editor: 吉川, 暢宏
中本, 与一
桑水流, 理
川山, 高寛
YOSHIKAWA, Nobuhiro
NAKAMOTO, Yoichi
KUWAZURU, Osamu
KAWAYAMA, Takahiro
Author Heading: 吉川, 暢宏
中本, 与一
桑水流, 理
川山, 高寛
YOSHIKAWA, Nobuhiro
NAKAMOTO, Yoichi
KUWAZURU, Osamu
KAWAYAMA, Takahiro
Publication, Distribution, etc.: 社団法人日本機械学会
Publication Date: 2004-09-25
Publication Date (W3CDTF): 2004-09-25
Alternative Title: On Identification Methodology of Three-dimensional Displacement Field in Inhomogeneous Body by X-Ray CT Images
Periodical title: 日本機械学会論文集(A編)
No. or year of volume/issue: 70 697
Volume: 70
Issue: 697
Pages: 1284-1291
Text Language Code: jpn
Subject Heading: Biomechanics
Digital Image Processing
Inverse Problem
Non-invasive Experiment
Displacement
Field Identification
X-ray Computed Tomography
SCE-UA Method
Target Audience: 一般
Note (General): A material test system combined with X-ray computed tomography (CT) is newly developed for material characterization of biological tissue in non-invasive manner. An identification method is investigated for internal displacement field of inhomogeneous body through the CT images from the system. Two voxel models are constituted by laying up thicken pixels of the cross-sectional tomograms taken under unloaded and loaded conditions. Representing the displacement field in terms of the Fourier series, we pose an inverse problem to identify unknown Fourier coefficients by using unloaded and actually loaded voxel models. A virtually deformed voxel model is embodied through an image processing technique to transform the unloaded voxel model via the tentative Fourier series. An error function between actually loaded and virtually deformed voxel model is defined by the voxel values, which indicate brightness of voxels. The error is minimized with respect to unknown coefficients by means of the SCE-UA method (Shuffled Complex Evolution Method Developed at the University of Arizona). The validity of the proposed method is demonstrated through an experimental example.
Access Restrictions: 限定公開
Rights (production): 社団法人日本機械学会
Related Material: isVersionOf:http://ci.nii.ac.jp/naid/110004998830/
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 福井大学 : 福井大学学術機関リポジトリ