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Improving light efficiency in multispectral imaging via complementary notch filters

Panther, Theresa; Schambach, Maximilian ORCID iD icon; Heizmann, Michael


We propose a novel multispectral imaging technique employing complementary notch filters instead of bandpass filters which are conventionally used in filter-based multispectral cameras. Therefore, only little power of the incoming photon signal is lost and thus the SNR of the multispectral data can be significantly improved. To validate the proposed approach, simulations of conventional bandpass filters as well as complementary notch filters are presented. To compare the resulting SNRs, the EMVA 1288 standard is adopted in such a way that it is applicable to notch filter-based multispectral cameras. It is found that the SNR can be significantly improved by using complementary filters instead of the conventional bandpass filters, especially at high spectral resolution.

DOI: 10.1117/12.2592411
Zitationen: 1
Zitationen: 1
Zugehörige Institution(en) am KIT Institut für Industrielle Informationstechnik (IIIT)
Publikationstyp Proceedingsbeitrag
Publikationsdatum 20.06.2021
Sprache Englisch
Identifikator ISBN: 978-1-5106-4409-0
KITopen-ID: 1000135075
Erschienen in Proceedings Volume 11787, Automated Visual Inspection and Machine Vision IV; Event: SPIE Optical Metrology, 2021, Online Only
Veranstaltung SPIE Optical Metrology (2021), Online, 21.06.2021 – 25.06.2021
Verlag SPIE
Seiten 18
Serie Proceedings of SPIE ; 117870K
Schlagwörter multispectral imaging, complementary filters, EMVA 1288
Nachgewiesen in Dimensions
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