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dc.contributor.authorEckhard, Jia
dc.contributor.authorEckhard, Timo
dc.contributor.authorValero, Eva M.
dc.contributor.authorNieves, Juan Luis
dc.contributor.authorGarrote, Estibaliz
dc.date.accessioned2017-01-12T11:23:04Z
dc.date.available2017-01-12T11:23:04Z
dc.date.issued2015
dc.identifier.issn0003-6935en
dc.identifier.urihttp://hdl.handle.net/11556/360
dc.description.abstractThe acquisition of spectral reflectance factor image data in an outdoor environment is a challenging task, mostly due to nonstatic scene content and illumination. In this work, we propose a work-flow for this task using a commercial Bragg-grating-based hyperspectral imager that can capture the visible and near-infrared part of the light spectrum. To our knowledge, we are the first who use this technology for outdoor spectral reflectance factor imaging. The work-flow involves focus position and exposure time estimation, illumination scaling, and image registration, among other procedures. Most of them generally apply to hyperspectral imaging, while some are specific to a Bragg-grating-based hyperspectral imaging device when dealing with specific challenges in outdoor environments. We have conducted some experiments to evaluate the quality of the acquired image data and discussed some limitations of the technology for spectral imaging of outdoor scenes. Fourteen urban scene spectral images acquired using the proposed approach are already publicly available to the scientific community under a Creative Commons license.en
dc.description.sponsorshipThis work has been financed by a joint agreement (Reference Number C-3368-00) between Tecnalia Corporation and the Fundacion General UGR-Empresa from Spain. We would like to acknowledge Marc Verhaegen and Brice Bourgoin from Photon Etc. for their valuable feedback and support with respect to this work.en
dc.language.isoengen
dc.titleOutdoor scene reflectance measurements using a Bragg-grating-based hyperspectral imageren
dc.typearticleen
dc.identifier.doi10.1364/AO.54.000D15en
dc.isiYesen
dc.rights.accessRightsembargoedAccessen
dc.subject.keywordsCUBESen
dc.subject.keywordsreflectance measurementsen
dc.subject.keywordshyperspectralen
dc.issue.number13en
dc.journal.titleApplied Opticsen
dc.page.initialD15en
dc.volume.number54en


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