Source multiplexing enhances the number of channels of a multispectral sensor

Katsafadou, Maria and Giardini, Mario E.; (2022) Source multiplexing enhances the number of channels of a multispectral sensor. In: 2022 44th IEEE Engineering in Medicine and Biology Conference (EMBC). International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC) . IEEE, GBR, pp. 2455-2458. ISBN 9781728127828 (

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Abstract— This paper presents preliminary work on a method to increase the number of detection channels of a commercial 6-channel spectrometric sensor, by employing a set of multiplexed spectrally colored illumination sources. A demonstrator has been built and tested on a set of independent dyes. The results suggest successful enhancement of the number of detection channels. More tests are needed to provide quantitative performance evaluation, and to demonstrate viability in a clinical setting. Clinical Relevance— The technique presented in this paper shows promise to provide a viable method for multispectral sensing in highly-miniaturized systems, such as in-vivo sensing capsules.