dc.contributor.author | Sherkat, Habib | |
dc.contributor.author | Pinto-Orellana, Marco Antonio | |
dc.contributor.author | Mirtaheri, Peyman | |
dc.date.accessioned | 2020-06-25T13:59:47Z | |
dc.date.accessioned | 2020-08-05T08:46:43Z | |
dc.date.available | 2020-06-25T13:59:47Z | |
dc.date.available | 2020-08-05T08:46:43Z | |
dc.date.issued | 2020-06-19 | |
dc.identifier.citation | Sherkat H, Pinto-Orellana MA, Mirtaheri PM. SHADE: Absorption spectroscopy enhancement with ambient light estimation and narrow-band detection. Optik (Stuttgart). 2020;220 | en |
dc.identifier.issn | 0030-4026 | |
dc.identifier.issn | 0030-4026 | |
dc.identifier.issn | 1618-1336 | |
dc.identifier.uri | https://hdl.handle.net/10642/8795 | |
dc.description.abstract | Ambient light (AML) limits the usage of absorption spectroscopy to strictly-controlled environments due to its impact on the quality of the signals. In medical applications for Optical instruments that require high reliability and validity results, it is indispensable to control AML impact. In this work, we present a multi-wavelength optical acquisition method, here called SHADE.The technique increases the quality of the optical signals, dynamically assesses AML, and enables mitigating the AML influence on the data. Our proposed technique involves four primary functions: (1) Multiplexing/demultiplexing of target wavelengths using a frequency-division method; (2) Robust signal recovery using inverse notch filters; (3) Concurrent AML intensity estimation; (4) A simple post-processing (offline) suppression of AML interference. We introduce the mathematical framework of SHADE to demonstrate the theoretical scope and limitations. SHADE was also experimentally tested by using a digital signal processing board under different conditions.The results confirmed the performance of the AML reconstruction and the potential of such a method for further improvements of the signal quality. | en |
dc.description.sponsorship | This work was financially supported by the Research Council of Norway and Oslo Metropolitan University/Faculty ofTechnology, Art and Design. The funded Project is “Patient-Centric Engineering in Rehabilitation (PACER)” and project No. is 273599. | en |
dc.language.iso | en | en |
dc.publisher | Elsevier | en |
dc.relation.ispartofseries | Optik;Volume 220, October 2020 | |
dc.rights | Artikkelen er lisensiert under Creative Commons-lisensen Attribution 4.0 International (CC BY 4.0). | en |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.subject | Multi-wavelength spectroscopy | en |
dc.subject | Functional near-infrared spectroscopy | en |
dc.subject | Diffuse optical tomography | en |
dc.subject | Ambient light suppressions | en |
dc.subject | Optical topography | en |
dc.title | SHADE: Absorption spectroscopy enhancement with ambient light estimation and narrow-band detection | en |
dc.type | Journal article | en |
dc.type | Peer reviewed | en |
dc.date.updated | 2020-06-25T13:59:47Z | |
dc.description.version | publishedVersion | en |
dc.identifier.doi | https://dx.doi.org/10.1016/j.ijleo.2020.165116 | |
dc.identifier.cristin | 1817181 | |
dc.source.journal | Optik (Stuttgart) | |