Electromagnetic Imaging in Half-Space Using U-Net with the Iterative Modified Contrast Scheme
U-Net with the iterative modified contrast scheme (IMCS) is proposed to solve inverse scattering problems (ISPs) in half-space. IMCS is an innovative inversion technique that utilizes contrast functions to improve the visibility of target regions and reconstruct the internal structure of objects. In...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-02-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/25/4/1120 |
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| author | Chien-Ching Chiu Ching-Lieh Li Po-Hsiang Chen Yen-Chun Li Eng-Hock Lim |
| author_facet | Chien-Ching Chiu Ching-Lieh Li Po-Hsiang Chen Yen-Chun Li Eng-Hock Lim |
| author_sort | Chien-Ching Chiu |
| collection | DOAJ |
| description | U-Net with the iterative modified contrast scheme (IMCS) is proposed to solve inverse scattering problems (ISPs) in half-space. IMCS is an innovative inversion technique that utilizes contrast functions to improve the visibility of target regions and reconstruct the internal structure of objects. In contrast to applying IMCS alone, our proposed method improves the detection of contrast boundaries, enhancing noise immunity as well as increasing the structural similarity (SSI) through deep learning with U-Net. We compare the numerical results for 200-iteration IMCS and U-Net with 3-iteration IMCS, and it is found that the accuracy of reconstructed images can be improved a lot by U-Net with the 3-iteration IMCS architecture. In addition, even in the case of large Gaussian noise, the reconstruction is still good with our proposed method. |
| format | Article |
| id | doaj-art-c41551ef5ddc4c15be2f44b5a2e460f7 |
| institution | DOAJ |
| issn | 1424-8220 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj-art-c41551ef5ddc4c15be2f44b5a2e460f72025-08-20T03:12:12ZengMDPI AGSensors1424-82202025-02-01254112010.3390/s25041120Electromagnetic Imaging in Half-Space Using U-Net with the Iterative Modified Contrast SchemeChien-Ching Chiu0Ching-Lieh Li1Po-Hsiang Chen2Yen-Chun Li3Eng-Hock Lim4Department of Electrical and Computer and Engineering, Tamkang University, New Taipei City 251301, TaiwanDepartment of Electrical and Computer and Engineering, Tamkang University, New Taipei City 251301, TaiwanDepartment of Electrical and Computer and Engineering, Tamkang University, New Taipei City 251301, TaiwanDepartment of Electrical and Computer and Engineering, Tamkang University, New Taipei City 251301, TaiwanDepartment of Electrical and Electronic Engineering, University Tunku Abdul Rahman, Kajang 43200, MalaysiaU-Net with the iterative modified contrast scheme (IMCS) is proposed to solve inverse scattering problems (ISPs) in half-space. IMCS is an innovative inversion technique that utilizes contrast functions to improve the visibility of target regions and reconstruct the internal structure of objects. In contrast to applying IMCS alone, our proposed method improves the detection of contrast boundaries, enhancing noise immunity as well as increasing the structural similarity (SSI) through deep learning with U-Net. We compare the numerical results for 200-iteration IMCS and U-Net with 3-iteration IMCS, and it is found that the accuracy of reconstructed images can be improved a lot by U-Net with the 3-iteration IMCS architecture. In addition, even in the case of large Gaussian noise, the reconstruction is still good with our proposed method.https://www.mdpi.com/1424-8220/25/4/1120iterative modified contrast schemeinverse scattering problemU-Netstructural similarity |
| spellingShingle | Chien-Ching Chiu Ching-Lieh Li Po-Hsiang Chen Yen-Chun Li Eng-Hock Lim Electromagnetic Imaging in Half-Space Using U-Net with the Iterative Modified Contrast Scheme Sensors iterative modified contrast scheme inverse scattering problem U-Net structural similarity |
| title | Electromagnetic Imaging in Half-Space Using U-Net with the Iterative Modified Contrast Scheme |
| title_full | Electromagnetic Imaging in Half-Space Using U-Net with the Iterative Modified Contrast Scheme |
| title_fullStr | Electromagnetic Imaging in Half-Space Using U-Net with the Iterative Modified Contrast Scheme |
| title_full_unstemmed | Electromagnetic Imaging in Half-Space Using U-Net with the Iterative Modified Contrast Scheme |
| title_short | Electromagnetic Imaging in Half-Space Using U-Net with the Iterative Modified Contrast Scheme |
| title_sort | electromagnetic imaging in half space using u net with the iterative modified contrast scheme |
| topic | iterative modified contrast scheme inverse scattering problem U-Net structural similarity |
| url | https://www.mdpi.com/1424-8220/25/4/1120 |
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