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Multi-channel volume density neural radiance field for hyperspectral imaging
National Engineering Research Center for Optical Instruments, Centre for Optical and Electromagnetic Research, College of Optical Science and Engineering, Zhejiang University, 310058, Hangzhou, China.
KTH, School of Electrical Engineering and Computer Science (EECS), Electrical Engineering, Electromagnetic Engineering and Fusion Science. National Engineering Research Center for Optical Instruments, Centre for Optical and Electromagnetic Research, College of Optical Science and Engineering, Zhejiang University, 310058, Hangzhou, China.ORCID iD: 0000-0002-3401-1125
2025 (English)In: Scientific Reports, E-ISSN 2045-2322, Vol. 15, no 1, article id 16253Article in journal (Refereed) Published
Abstract [en]

Hyperspectral imaging and Neural Radiance Field (NeRF) can be combined in powerful ways. With limited hyperspectral images, NeRF can generate images of objects with spectral information from arbitrary viewpoints, which can effectively mitigate defects such as long acquisition time and difficulty in obtaining hyperspectral images. This paper addresses challenges in the application of NeRF methods in the hyperspectral domain, including local errors in convergence caused by noise. Leveraging the characteristics of hyperspectral data, we propose a neural radiance field method employing a multi-channel volume density distribution function. This approach alleviates issues during the generation of neural radiance fields from hyperspectral data, enhancing the robustness of hyperspectral neural radiance field methods across various scenarios, which can help downstream tasks such as discriminating objects more effectively than RGB methods. Experiments demonstrate that the proposed method generates superior hyperspectral images under diverse conditions, with a maximum PSNR 37.66 and a maximum SSIM 0.982.

Place, publisher, year, edition, pages
Springer Nature , 2025. Vol. 15, no 1, article id 16253
Keywords [en]
3D, Hyperspectral image, NeRF, Novel view synthesis
National Category
Computer graphics and computer vision Computer Sciences
Identifiers
URN: urn:nbn:se:kth:diva-363799DOI: 10.1038/s41598-025-00877-8ISI: 001485688100030PubMedID: 40346158Scopus ID: 2-s2.0-105004672171OAI: oai:DiVA.org:kth-363799DiVA, id: diva2:1959895
Note

QC 20250602

Available from: 2025-05-21 Created: 2025-05-21 Last updated: 2025-09-26Bibliographically approved

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He, Sailing

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