Acta Metrologica Sinica  2024, Vol. 45 Issue (8): 1096-1102    DOI: 10.3969/j.issn.1000-1158.2024.08.02
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Electromagnetic Tomography Algorithm Based on MLP-AE Network
JIA Hu,WANG Mingquan,SHANG Aoxue
School of Information and Communication Engineering, North University of China, Taiyuan,Shanxi 030051, China
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Abstract  Due to the limitations of physical models, the traditional algorithm of electromagnetic tomography (EMT) leads to the lack of reconstruction data, which makes its inverse problem have serious discomfort and pathology. In order to solve the problems of many artifacts and poor quality in the reconstructed images, a composite electromagnetic tomography algorithm based on MLP-AE is proposed. Firstly, the field information of the object to be tested is sent to the self-coding neural network (AE) for learning as input to obtain the encoded data. Then the electromagnetic excitation of the measured object field is carried out to obtain voltage data. The voltage data is taken as input, and the data after encoding the field information of the DUT is sent to the MLP neural network for learning as output. Finally decoding enables end-to-end image reconstruction. The performance of the proposed algorithm is evaluated by mean squared error, structural similarity index and imaging time, and compared with the linear backprojection algorithm, Tikhonov regularization algorithm, and Landweber iterative algorithm. The experimental results show that the proposed algorithm reduces the mean squared error by 28.77%, 22.57% and 23.74% compared with the above traditional algorithms on a single image, the structural similarity index is increased by 17.54%, 14.38% and 15.44%, and the imaging time is 73.78%, 98.63% and 93.86% faster, respectively. It provides an idea for real-time accurate imaging later.
Key wordsmetrology;electromagnetism metrology      electromagnetic tomography imaging      deep learning      image reconstruction      self coding      MLP     
Received: 23 October 2023      Published: 05 September 2024
PACS:  TB973  
  TB96  
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JIA Hu
WANG Mingquan
SHANG Aoxue
Cite this article:   
JIA Hu,WANG Mingquan,SHANG Aoxue. Electromagnetic Tomography Algorithm Based on MLP-AE Network[J]. Acta Metrologica Sinica, 2024, 45(8): 1096-1102.
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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2024.08.02     OR     http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2024/V45/I8/1096
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