JOURNAL ARTICLE

Dynamic Directional Algebraic Reconstruction Technique for Electrical Capacitance Tomography

Ji-Hoon KimBong-Seok KimKyung Youn KimIn-Soo Lee

Year: 2017 Journal:   The Journal of Korean Institute of Information Technology Vol: 15 (11)Pages: 117-123   Publisher: Indonesian Institute of Information Technology

Abstract

전기 커패시턴스 단층촬영법(Electrical Capacitance Tomography)을 위해 개발된 대부분의 복원방법은 커패시턴스를 측정하는 동안 센서의 내부 분포가 변하지 않는(정적) 경우에 적합하다. 그러나 커패시턴스를 측정하는 동안에 내부 분포가 변하게 되면(동적), 기존 방법으로는 측정된 커패시턴스로부터 내부 분포를 복원하는데 어려움이 있다. 이 논문은 센서의 내부 분포가 지속적으로 변하는 경우에도 영상복원이 가능한 동적 방향 대수적 영상복원기법(DART, Directional Algebraic Reconstruction Technique)을 제안한다. 이 방법은 정적 DART를 기반으로, 하나의 소스전극에 의해 측정된 커패시턴스로부터 내부 유전율 분포를 추정하도록 수정하였다. 제안한 방법의 타당성을 확인하기 위해 컴퓨터 모의실험을 실시하였고 결과를 통해 센서 내부의 분포가 변할 때 제안한 방법의 성능이 기존의 방법들보다 나음을 확인하였다.

Keywords:
Electrical capacitance tomography Capacitance Dart Algebraic Reconstruction Technique Tomography Algebraic number Iterative reconstruction Computer science Materials science Physics Optics Computer vision Mathematics Mathematical analysis Programming language Electrode

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Citation History

Topics

Electrical and Bioimpedance Tomography
Physical Sciences →  Engineering →  Electrical and Electronic Engineering
Analytical Chemistry and Sensors
Physical Sciences →  Chemical Engineering →  Bioengineering
Hemodynamic Monitoring and Therapy
Health Sciences →  Medicine →  Surgery

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