南京航空航天大学机电学院
纸质出版:2025
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郭坤, 刘凯, 徐园, 等. 电阻抗成像的故障电极高精度数据补偿方法[J]. 传感器与微系统, 2025,(5):16-19.
郭坤, 刘凯, 徐园, 等. 电阻抗成像的故障电极高精度数据补偿方法[J]. 传感器与微系统, 2025,(5):16-19. DOI: 10.13873/J.1000-9787(2025)05-0016-04.
电阻抗成像(EIT)过程中,电极脱落会导致电极接触不良,进而导致成像紊乱。针对这个问题,提出了一种基于交替最小二乘(ALS)法的故障电极高精度数据补偿方法,旨在利用良好的电压数据实现电极接触不良过程中错误数据的修正。通过实验验证,分别断开了1个、2个和3个电极,并与传统的均值插补(MI)法和K最近邻(KNN)法进行了比较。实验结果表明,采用本文提出的ALS法进行电极错误数据修正,图像相关系数(ICC)达到0.998以上,均方根误差(RMSE)不超过0.03
结构相似性指数(SSIM)达到0.98以上。这表明在存在多个脱落电极的情况下,采用ALS法恢复的电压数据可以实现稳定的成像效果。
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Andy Adler,John H Arnold,Richard Bayford,Andrea Borsic,Brian Brown,Paul Dixon,Theo J C Faes,Inéz Frerichs,Hervé Gagnon,Yvo Gärber,Bartłomiej Grychtol,Günter Hahn,William R B Lionheart,Anjum Malik,Robert P Patterson,Janet Stocks,Andrew Tizzard,Norbert Weiler,Gerhard K Wolf.GREIT: a unified approach to 2D linear EIT reconstruction of lung images[J].Physiological Measurement,2009.
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School of Information Technology and Engineering, University of Ottawa, Ottawa K1N 6N5, Ontario, Canada. aadler@uottawa.ca.Accounting for erroneous electrode data in electrical impedance tomography.[J].Physiological measurement,2004.
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