Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Dynamic imaging in electrical capacitance tomography and electromagnetic induction tomography using a Kalman filter.
AU - Soleimani, Manuchehr
AU - Vauhkonen, Marko
AU - Yang, Wuqiang Q.
AU - Peyton, Anthony J.
AU - Kim, Bong Seok
AU - Ma, Xiandong
PY - 2007/11
Y1 - 2007/11
N2 - Electrical capacitance tomography (ECT) and electromagnetic induction tomography (EMT) attempt to visualize the distributions of materials with different permittivity and conductivity/permeability, aiming to reveal electrical and magnetic characteristics of an object, by measuring electrical capacitance and electromagnetic inductance on the periphery of the object. In ECT, capacitances of pairs of electrodes placed around the periphery are measured and in EMT, mutual induction of pairs of coils is measured. In this paper, a dynamic imaging technique is developed for ECT and EMT with a linearized Kalman filter to improve the temporal resolution of images. The inverse problem is treated as a state estimate. A Kalman estimator is used to obtain the material distribution. Experimental results demonstrate that the dynamic imaging technique can improve the spatio-temporal resolution of both ECT and EMT.
AB - Electrical capacitance tomography (ECT) and electromagnetic induction tomography (EMT) attempt to visualize the distributions of materials with different permittivity and conductivity/permeability, aiming to reveal electrical and magnetic characteristics of an object, by measuring electrical capacitance and electromagnetic inductance on the periphery of the object. In ECT, capacitances of pairs of electrodes placed around the periphery are measured and in EMT, mutual induction of pairs of coils is measured. In this paper, a dynamic imaging technique is developed for ECT and EMT with a linearized Kalman filter to improve the temporal resolution of images. The inverse problem is treated as a state estimate. A Kalman estimator is used to obtain the material distribution. Experimental results demonstrate that the dynamic imaging technique can improve the spatio-temporal resolution of both ECT and EMT.
KW - Electrical capacitance tomography
KW - electromagnetic induction tomography
KW - permittivity and conductivity distribution
KW - inverse problem
KW - dynamic imaging
KW - Kalman filter
U2 - 10.1088/0957-0233/18/11/004
DO - 10.1088/0957-0233/18/11/004
M3 - Journal article
VL - 18
SP - 3287
EP - 3294
JO - Measurement Science and Technology
JF - Measurement Science and Technology
SN - 0957-0233
IS - 11
ER -