Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/49997
Registo completo
Campo DC | Valor | Idioma |
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dc.contributor.author | Linhares, João M. M. | por |
dc.contributor.author | Pinto, Paulo Filipe Salgado | por |
dc.contributor.author | Nascimento, Sérgio M. C. | por |
dc.date.accessioned | 2018-02-01T16:23:10Z | - |
dc.date.issued | 2010-11-30 | - |
dc.identifier.isbn | 9781617388897 | por |
dc.identifier.uri | https://hdl.handle.net/1822/49997 | - |
dc.description.abstract | Common descriptors of light quality fail to predict the chromatic diversity produced by the same illuminant in different contexts such as images of natural scenes. The aim of this paper was to introduce a new index, capable of predicting illuminant-induced variations in the chromatic diversity off natural scenes. The spectral reflectance of each pixel of 50 images of natural scenes obtained using a hyperspectral imaging and the spectral reflectance of 1264 Munsell surfaces were converted into the CIELAB color space for each of the 55 illuminants and 5 light sources. The CIELAB volume was estimated by the convex hull method. The number of discernible colors was estimated by segmenting the CIELAB color volume into unitary cubes and by counting the number of non-empty cubes. High correlation was found between the CIELAB volume occupied by the Munsell surfaces, the number of discernible colors and C1LEAB color volume of the colors of natural scenes. These results seem to indicate that a new illuminant chromatic diversity index based on natural scenes could be defined using the CIELAB volume of the Munsell surfaces. | por |
dc.description.sponsorship | (undefined) | por |
dc.language.iso | eng | por |
dc.publisher | Society for Imaging Science and Technology | por |
dc.relation | info:eu-repo/grantAgreement/FCT/Orçamento de Funcionamento%2FPOSC/57554/PT | por |
dc.relation | POCTI/EAT/55416/2004 | por |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F35874%2F2007/PT | por |
dc.rights | restrictedAccess | por |
dc.title | Chromatic diversity index : an approach based on natural scenes | por |
dc.type | conferencePaper | por |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | http://ist.publisher.ingentaconnect.com/content/ist/cgiv/2010/00002010/00000001 | por |
oaire.citationConferenceDate | June 14 - June 17, 2010 | por |
sdum.event.title | 5th European Conference on Colour in Graphics, Imaging, and Vision and 12th International Symposium on Multispectral Colour Science 2010 (CGIV 2010/MCS'10) | por |
sdum.event.type | conference | por |
oaire.citationStartPage | 58 | por |
oaire.citationEndPage | 61 | por |
oaire.citationConferencePlace | Joensuu, Finland | por |
dc.date.updated | 2018-01-11T17:12:03Z | - |
dc.description.publicationversion | info:eu-repo/semantics/publishedVersion | por |
sdum.export.identifier | 2333 | - |
sdum.conferencePublication | Conference on Colour in Graphics,Conference on Colour in Graphics, Imaging, and Vision (CGIV 2010) | por |
Aparece nas coleções: | CDF - OCV - Comunicações/Communications (with refereeing) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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s1-ln761989895844769-1939656818Hwf1504197450IdV3065815417619898PDF_HI0001.pdf Acesso restrito! | 876,37 kB | Adobe PDF | Ver/Abrir |