Using polynomial curve fitting method to improve image quality in EIT.
The Polynomial Curve Fitting Method (PCFM) is used firstly on Electrical Impedance Tomography (EIT) to find out the polynomial function of boundary potential distribution according to the measured data in this work. The potential values calculated from the polynomial function can be regarded as measured data. So enough data can be provided to satisfy the requirements of various algorithms. The potential distribution within the domain is obtained approximately according to the equipotential property. Without adding the electrode number and changing data collection strategy, more data can be obtained and regarded as measured data by using the PCFM. With these enough data, the quality of reconstructed image is improved obviously.
Zhang
Jianjun
J
Joint Province-Ministry Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability, Hebei University of Technology, Tianjin, 300130,China.
Xu
Guizhi
G
Zhao
Quanming
Q
Yan
Weili
W
D000465:Algorithms; D003198:Computer Simulation; D017097:Electric Impedance; D007091:Image Processing, Computer-Assisted; D014054:Tomography / Q000379:methods*