Layer-Resolving Terahertz Light-Field Imaging Based on Angular Intensity Filtering Method
Terahertz focal plane array imaging methods, direct camera imaging and conventional light field imaging methods are incapable of resolving and separating layers of multilayer objects. In this paper, for the purpose of fast, high-resolution and layer-resolving imaging of multilayer structures with di...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-11-01
|
| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/21/22/7451 |
| _version_ | 1797508489077063680 |
|---|---|
| author | Nanfang Lyu Jian Zuo Yuanmeng Zhao Cunlin Zhang |
| author_facet | Nanfang Lyu Jian Zuo Yuanmeng Zhao Cunlin Zhang |
| author_sort | Nanfang Lyu |
| collection | DOAJ |
| description | Terahertz focal plane array imaging methods, direct camera imaging and conventional light field imaging methods are incapable of resolving and separating layers of multilayer objects. In this paper, for the purpose of fast, high-resolution and layer-resolving imaging of multilayer structures with different reflection characteristics, a novel angular intensity filtering (AIF) method based on terahertz light-field imaging is purposed. The method utilizes the extra dimensional information from the 4D light field and the reflection characteristics of the imaging object, and the method is capable to resolve and reconstruct layers individually. The feasibility of the method is validated by experiment on both “idealized” and “practical” multilayer samples, and the advantages in performance of the method are proven by quantitative comparison with conventional methods. |
| first_indexed | 2024-03-10T05:04:42Z |
| format | Article |
| id | doaj.art-0e2c78886892417b8b0eaf1409a00816 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T05:04:42Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-0e2c78886892417b8b0eaf1409a008162023-11-23T01:23:29ZengMDPI AGSensors1424-82202021-11-012122745110.3390/s21227451Layer-Resolving Terahertz Light-Field Imaging Based on Angular Intensity Filtering MethodNanfang Lyu0Jian Zuo1Yuanmeng Zhao2Cunlin Zhang3Beijing Advanced Innovation Center for Imaging Technology, Key Laboratory of Terahertz Optoelectronics, Ministry of Education, Beijing Key Laboratory for Terahertz Spectroscopy and Imaging, Department of Physics, Capital Normal University, Beijing 100048, ChinaBeijing Advanced Innovation Center for Imaging Technology, Key Laboratory of Terahertz Optoelectronics, Ministry of Education, Beijing Key Laboratory for Terahertz Spectroscopy and Imaging, Department of Physics, Capital Normal University, Beijing 100048, ChinaBeijing Advanced Innovation Center for Imaging Technology, Key Laboratory of Terahertz Optoelectronics, Ministry of Education, Beijing Key Laboratory for Terahertz Spectroscopy and Imaging, Department of Physics, Capital Normal University, Beijing 100048, ChinaBeijing Advanced Innovation Center for Imaging Technology, Key Laboratory of Terahertz Optoelectronics, Ministry of Education, Beijing Key Laboratory for Terahertz Spectroscopy and Imaging, Department of Physics, Capital Normal University, Beijing 100048, ChinaTerahertz focal plane array imaging methods, direct camera imaging and conventional light field imaging methods are incapable of resolving and separating layers of multilayer objects. In this paper, for the purpose of fast, high-resolution and layer-resolving imaging of multilayer structures with different reflection characteristics, a novel angular intensity filtering (AIF) method based on terahertz light-field imaging is purposed. The method utilizes the extra dimensional information from the 4D light field and the reflection characteristics of the imaging object, and the method is capable to resolve and reconstruct layers individually. The feasibility of the method is validated by experiment on both “idealized” and “practical” multilayer samples, and the advantages in performance of the method are proven by quantitative comparison with conventional methods.https://www.mdpi.com/1424-8220/21/22/7451computational imaginglight field imagingnon-destructive evaluationterahertz imaging |
| spellingShingle | Nanfang Lyu Jian Zuo Yuanmeng Zhao Cunlin Zhang Layer-Resolving Terahertz Light-Field Imaging Based on Angular Intensity Filtering Method Sensors computational imaging light field imaging non-destructive evaluation terahertz imaging |
| title | Layer-Resolving Terahertz Light-Field Imaging Based on Angular Intensity Filtering Method |
| title_full | Layer-Resolving Terahertz Light-Field Imaging Based on Angular Intensity Filtering Method |
| title_fullStr | Layer-Resolving Terahertz Light-Field Imaging Based on Angular Intensity Filtering Method |
| title_full_unstemmed | Layer-Resolving Terahertz Light-Field Imaging Based on Angular Intensity Filtering Method |
| title_short | Layer-Resolving Terahertz Light-Field Imaging Based on Angular Intensity Filtering Method |
| title_sort | layer resolving terahertz light field imaging based on angular intensity filtering method |
| topic | computational imaging light field imaging non-destructive evaluation terahertz imaging |
| url | https://www.mdpi.com/1424-8220/21/22/7451 |
| work_keys_str_mv | AT nanfanglyu layerresolvingterahertzlightfieldimagingbasedonangularintensityfilteringmethod AT jianzuo layerresolvingterahertzlightfieldimagingbasedonangularintensityfilteringmethod AT yuanmengzhao layerresolvingterahertzlightfieldimagingbasedonangularintensityfilteringmethod AT cunlinzhang layerresolvingterahertzlightfieldimagingbasedonangularintensityfilteringmethod |