Title :
Comparative Study of Reconstruction Algorithms for Electrical Impedance Tomography
Author :
Wu, Kejian ; Yang, Jiqing ; Xiuzhen Dong ; Fu, F. Eng ; Tao, Feng ; Liu, Shuo
Author_Institution :
Dept. of Biomed. Eng., Fourth Mil. Med. Univ., Xi´´an, China
Abstract :
We compare the quality of some classic Electrical Impedance Tomography (EIT) algorithms according to different methods of solving inverse problem. We carried out a transverse comparison between single-step reconstruction and modified Newton-Raphson algorithms (MNR). Our results of the simulation evaluation demonstrate Sensitive matrix algorithm is better than equipotential lines back-projection algorithm (ELBP) with more accurate location, more clear boundary imaging; mixed regularization reconstruction is better than other regularizations with higher contrast, better good interference rejection. Different EIT algorithms have a bigger difference at image quality and information to the same imaging targets.
Keywords :
Newton-Raphson method; electric impedance imaging; image reconstruction; interference; inverse problems; matrix algebra; medical image processing; EIT algorithms; ELBP algorithm; MNR algorithms; boundary imaging; electrical impedance tomography algorithms; equipotential line backprojection algorithm; image quality; inverse problem; mixed regularization reconstruction; modified Newton-Raphson algorithms; sensitive matrix algorithm; single-step reconstruction algorithms; Algorithm design and analysis; Conductivity; Heuristic algorithms; Image reconstruction; Impedance; Sensitivity; Tomography;
Conference_Titel :
Engineering and Technology (S-CET), 2012 Spring Congress on
Conference_Location :
Xian
Print_ISBN :
978-1-4577-1965-3
DOI :
10.1109/SCET.2012.6342085