Multispectral system for recovering near-infrared reflectance spectra
dc.contributor.author | Arjona Carbonell, Mª Montserrat |
dc.contributor.author | Vilaseca Ricart, Meritxell |
dc.contributor.author | Pujol Ramo, Jaume |
dc.contributor.author | Martínez Verdú, Francisco Miguel |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament d'Òptica i Optometria |
dc.date.accessioned | 2010-07-20T11:22:33Z |
dc.date.available | 2010-07-20T11:22:33Z |
dc.date.created | 2004 |
dc.date.issued | 2004 |
dc.identifier.citation | Arjona, M. [et al.]. Multispectral system for recovering near-infrared reflectance spectra. A: European Conference on Colour in Graphics, Imaging and Vision. "Second European Conference on Colour in Graphics, Imaging and Vision (CGIV 2004)". Aachen: 2004, p. 409-413. |
dc.identifier.isbn | 0-89208-250-X |
dc.identifier.uri | http://hdl.handle.net/2117/8276 |
dc.description.abstract | In this paper, we analyze an experimental system for recovering the reflectance spectra of samples in the nearinfrared region of the spectrum (NIR, 800-1000 nm). Recently, CCD cameras with improved response in the NIR have been manufactured. It is therefore possible to use this standard instrumentation to obtain information on samples in this region. The setup used in this work consisted of a conventional multispectral system of five acquisition channels with spectral bands that were equispaced in the NIR region. An automated objective lens was used to control the exposure over the CCD. By using different F-number exposure series, we obtained sets of camera responses corresponding to a group of reference samples and analyzed the dependence of the digital output levels on the lens aperture. The reconstructions obtained for a set of textile samples show that Wiener estimation and principal component analysis provide the best results. These mathematical methods provide percentages of reconstruction close to 99.8% and RMSE values close to 0.025. |
dc.format.extent | 5 p. |
dc.language.iso | eng |
dc.subject | Àrees temàtiques de la UPC::Ciències de la visió::Optometria |
dc.subject.lcsh | Spectral reflectance |
dc.title | Multispectral system for recovering near-infrared reflectance spectra |
dc.type | Conference report |
dc.contributor.group | Universitat Politècnica de Catalunya. GREO - Grup de Recerca en Enginyeria Òptica |
dc.description.peerreviewed | Peer Reviewed |
dc.rights.access | Restricted access - author's decision |
local.identifier.drac | 2593548 |
dc.description.version | Postprint (published version) |
local.citation.author | Arjona, M.; Vilaseca, M.; Pujol, J.; Martínez, F. |
local.citation.contributor | European Conference on Colour in Graphics, Imaging and Vision |
local.citation.pubplace | Aachen |
local.citation.publicationName | Second European Conference on Colour in Graphics, Imaging and Vision (CGIV 2004) |
local.citation.startingPage | 409 |
local.citation.endingPage | 413 |
Files in this item
This item appears in the following Collection(s)
All rights reserved. This work is protected by the corresponding intellectual and industrial
property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public
communication or transformation of this work are prohibited without permission of the copyright holder