2021 Fiscal Year Final Research Report
Development of Functional Tomography for Imaging Body Dynamics and Its Application for Body Control
| Project/Area Number |
19H04189
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Review Section |
Basic Section 61050:Intelligent robotics-related
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| Research Institution | The University of Tokyo |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
黒田 嘉宏 筑波大学, システム情報系, 教授 (30402837)
大城 理 大阪大学, 基礎工学研究科, 教授 (90252832)
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| Project Period (FY) |
2019-04-01 – 2022-03-31
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| Keywords | トモグラフィ / 電気的計測 / 身体ダイナミクス / イメージング |
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| Outline of Final Research Achievements |
The purpose of this study is to develop a functional tomography technique to estimate body dynamics based on electrical impedance measurements. First, we developed a system for electrical impedance tomography that visualizes the distribution of electrical conductivity, and clarified the efficient state estimation method. Next, we showed that hand motion and contact force can be estimated from wrist shape changes, and clarified the electrode arrangement with high sensitivity. We also demonstrated a new tomography method that enables imaging of proximity and temperature distributions by focusing on capacitance and magnetic fields. These results are useful as elemental technologies for functional tomography and are expected to contribute to healthcare and interface applications.
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| Free Research Field |
生体医工学
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| Academic Significance and Societal Importance of the Research Achievements |
従来の主な生体イメージングの手法では，大型な装置や対象の拘束が必要であり，身体の動作や外界との相互作用を精緻に調べる上で課題があった．本研究で開発した電磁界トモグラフィを利用したイメージングでは，電極や柔軟・薄型なセンサなどの拘束が少ないデバイスを用いて生体組織の状態，身体の運動，外界との干渉を計測でき，身体の機能を評価するための新しいツールとなり得る．また，時空間性能を向上させるための励起手法や電極配置が明らかになったほか，近接や温度など従来では捉えることのできなかった物理量を可視化でき，電磁界トモグラフィの応用可能性を拡張することができた．
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