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. 2023 Aug 19;14:5043. doi: 10.1038/s41467-023-40739-3

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© The Author(s) 2023

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 4 — a The encoded measurement (upper left corner) and RGB synthesized result at t = 99.6 s. b Multi-spectral reconstruction result at t = 99.6s, colored by the RGB value of the corresponding wavelength. c RGB synthesized time-lapse images and the corresponding heatmap generated from the multi-spectral data, showing the process of sewage diffusion. The brightness of the green and blue colors represent the concentration of the two types of sewage. d RGB synthesized time-lapse images and the corresponding heatmap for the region in white box in (a).