Development and Deployment of THEIA: A Compact Underwater Multispectral Imaging System
We present THEIA, a novel underwater 3D multispectral imaging system. THEIA integrates a 4MP multispectral field array camera and a high-resolution RGB stereo camera pair in a specially built underwater housing to simultaneously capture spectral and depth information. This enables detailed spectral...
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2025-07-01
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| Series: | The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
| Online Access: | https://isprs-archives.copernicus.org/articles/XLVIII-2-W10-2025/287/2025/isprs-archives-XLVIII-2-W10-2025-287-2025.pdf |
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| author | S. Spanos C. Antoniou V. Ntouskos V. Ntouskos A. Mallios P. Nomikou K. Karantzalos |
| author_facet | S. Spanos C. Antoniou V. Ntouskos V. Ntouskos A. Mallios P. Nomikou K. Karantzalos |
| author_sort | S. Spanos |
| collection | DOAJ |
| description | We present THEIA, a novel underwater 3D multispectral imaging system. THEIA integrates a 4MP multispectral field array camera and a high-resolution RGB stereo camera pair in a specially built underwater housing to simultaneously capture spectral and depth information. This enables detailed spectral mapping and 3D reconstructions of underwater scenes. High resolution multispectral images are obtained via a Deep Image Prior-based demosaicing algorithm that enhances the multispectral data resolution without relying on external training. Stereo imaging provides depth cues for performing radiance correction. By suitably adapting Gaussian Splat-based 3D reconstruction methods, THEIA generates high-fidelity multispectral 3D models. Successful field trials at the Kolumbo underwater volcano validate the system’s reliability and potential for applications in marine science and beyond. |
| format | Article |
| id | doaj-art-acbcf81b6d1842b69c85f9a76b95f32b |
| institution | Kabale University |
| issn | 1682-1750 2194-9034 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
| spelling | doaj-art-acbcf81b6d1842b69c85f9a76b95f32b2025-08-20T03:28:58ZengCopernicus PublicationsThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences1682-17502194-90342025-07-01XLVIII-2-W10-202528729410.5194/isprs-archives-XLVIII-2-W10-2025-287-2025Development and Deployment of THEIA: A Compact Underwater Multispectral Imaging SystemS. Spanos0C. Antoniou1V. Ntouskos2V. Ntouskos3A. Mallios4P. Nomikou5K. Karantzalos6Remote Sensing Lab, National Technical University of Athens, GreeceRemote Sensing Lab, National Technical University of Athens, GreeceRemote Sensing Lab, National Technical University of Athens, GreeceDepartment of Engineering and Sciences, Universitas Mercatorum, Rome, ItalyPloa Technology Consultants S.L., Girona, SpainDepartment of Geology and Geoenvironment, National and Kapodistrian University of Athens, GreeceRemote Sensing Lab, National Technical University of Athens, GreeceWe present THEIA, a novel underwater 3D multispectral imaging system. THEIA integrates a 4MP multispectral field array camera and a high-resolution RGB stereo camera pair in a specially built underwater housing to simultaneously capture spectral and depth information. This enables detailed spectral mapping and 3D reconstructions of underwater scenes. High resolution multispectral images are obtained via a Deep Image Prior-based demosaicing algorithm that enhances the multispectral data resolution without relying on external training. Stereo imaging provides depth cues for performing radiance correction. By suitably adapting Gaussian Splat-based 3D reconstruction methods, THEIA generates high-fidelity multispectral 3D models. Successful field trials at the Kolumbo underwater volcano validate the system’s reliability and potential for applications in marine science and beyond.https://isprs-archives.copernicus.org/articles/XLVIII-2-W10-2025/287/2025/isprs-archives-XLVIII-2-W10-2025-287-2025.pdf |
| spellingShingle | S. Spanos C. Antoniou V. Ntouskos V. Ntouskos A. Mallios P. Nomikou K. Karantzalos Development and Deployment of THEIA: A Compact Underwater Multispectral Imaging System The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
| title | Development and Deployment of THEIA: A Compact Underwater Multispectral Imaging System |
| title_full | Development and Deployment of THEIA: A Compact Underwater Multispectral Imaging System |
| title_fullStr | Development and Deployment of THEIA: A Compact Underwater Multispectral Imaging System |
| title_full_unstemmed | Development and Deployment of THEIA: A Compact Underwater Multispectral Imaging System |
| title_short | Development and Deployment of THEIA: A Compact Underwater Multispectral Imaging System |
| title_sort | development and deployment of theia a compact underwater multispectral imaging system |
| url | https://isprs-archives.copernicus.org/articles/XLVIII-2-W10-2025/287/2025/isprs-archives-XLVIII-2-W10-2025-287-2025.pdf |
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