dc.contributor.author | Henriksen, Marie Bøe | |
dc.contributor.author | Sigernes, Fred | |
dc.contributor.author | Johansen, Tor Arne | |
dc.date.accessioned | 2023-02-17T13:41:19Z | |
dc.date.available | 2023-02-17T13:41:19Z | |
dc.date.created | 2022-12-21T08:30:16Z | |
dc.date.issued | 2022 | |
dc.identifier.issn | 2158-6276 | |
dc.identifier.uri | https://hdl.handle.net/11250/3052011 | |
dc.description.abstract | Methods to spectrally calibrate imaging spectrographs, also known as Hyperspectral Imagers (HSIs), are common and known, but few look into how well the wavelength calibration performs. When building hyperspectral instruments in-house, performing sufficient wavelength calibration is also necessary. This report therefore investigates how well different methods describe the pixel to wavelength relationship, using data from a simple set-up with argon and mercury spectral lamps. The methods are evaluated using Root Mean Square Error (RMSE). A linear fit between pixel index and wavelength, which is commonly assumed, is shown to describe the relationship well. Estimating the diffraction angle with an arctan function and calculating wavelength using the grating equation shows promising results with even lower RMSE values than the linear fit. This report is meant to aid others in calibrating their own hyperspectral imagers with limited resources by showing how wavelength calibration accuracy varies with different methods. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | IEEE | en_US |
dc.title | A closer look at a spectrographic wavelength calibration | en_US |
dc.title.alternative | A closer look at a spectrographic wavelength calibration | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | acceptedVersion | en_US |
dc.rights.holder | © IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. | en_US |
dc.source.journal | Workshop on Hyperspectral Image and Signal Processing, Evolution in Remote Sensing | en_US |
dc.identifier.doi | 10.1109/WHISPERS56178.2022.9955104 | |
dc.identifier.cristin | 2096063 | |
dc.relation.project | Norges forskningsråd: 223254 | en_US |
dc.relation.project | Norges forskningsråd: 270959 | en_US |
dc.relation.project | ESA - den europeiske romfartsorganisasjonen: PRODEX 4000132515 | en_US |
cristin.ispublished | true | |
cristin.fulltext | postprint | |
cristin.qualitycode | 1 | |