| Project/Area Number |
21560449
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Measurement engineering
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| Research Institution | The University of Tokushima |
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Principal Investigator |
YOSHINAGA Tetsuya 徳島大学, 大学院・ヘルスバイオサイエンス研究部, 教授 (40220694)
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| Co-Investigator(Renkei-kenkyūsha) |
FUJIMOTO Ken' ichi 徳島大学, 大学院・ヘルスバイオサイエンス研究部, 助教 (20300626)
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| Project Period (FY) |
2009 – 2011
|
| Project Status |
Completed (Fiscal Year 2011)
|
| Budget Amount *help |
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2011: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2009: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 信号処理 / CT / 画像再構成 / 連続法 / 非線形力学系 / ハイブリッドシステム / 非適切問題 / 最小化問題 |
|---|
| Research Abstract |
A continuous-time dynamic image reconstruction(CIR) system for medical computed tomography(CT) was proposed, and it was investigated through theoretical analysis, numerical analysis, creation of a prototype consisting of analog electronic circuits, and numerical experiments using a real X-ray CT scanner. Our CIR system could reconstruct images with almost the same quality as those of iterative methods without production of whitish broken-line artifacts and undesired negative pixel values. The results indicate that the use of hardware customized for the CIR system can reduce X-ray doses for a human body in clinical CT scanning.
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