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A study of spectral reflectance reconstruction using the weighted fitting algorithm based on the Sino Colour Book / Yuexin Liu in COLORATION TECHNOLOGY, Vol. 140, N° 1 (02/2024)
[article]
Titre : A study of spectral reflectance reconstruction using the weighted fitting algorithm based on the Sino Colour Book Type de document : texte imprimé Auteurs : Yuexin Liu, Auteur ; Juan Li, Auteur ; Xin Wang, Auteur ; Xuetong Li, Auteur ; Yang Song, Auteur ; Rong Li, Auteur Année de publication : 2024 Article en page(s) : p. 61-74 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Algorithmes
Couleur -- Analyse
Spectroscopie de réflectanceIndex. décimale : 535.6 Couleur Résumé : The spectral reflectance of a colour is its most essential characteristic, and it does not change with changes of equipment or light source. Therefore, the reconstruction of spectral reflectance from parameters such as colour tristimulus value and RGB has attracted the attention of researchers. To avoid the occurrence of metamerism in the colour reproduction process and to achieve the purpose of colour spectral reproduction, the spectral reflectance and the optimal parameters of the reconstruction using the weighted fitting method were discussed experimentally with the colour data measured from the Sino Colour Book as the research object. The results show that the best results are obtained when the weighted fitting parameters are weighted by the third power and eight colour samples are involved in the fitting. The reconstructed spectral reflectance obtained by the weighted fitting method has little variation and high overlap with the actual spectral reflectance obtained at each hue and lightness, thus meets the requirements of practical applications. Note de contenu : - EXPERIMENTAL : Experimental samples: the Sino Colour Book
- THEORY : Weighted fitting algorithm - The relationship between spectral reflectance and colour tristimulus values
- EVALUATION METHODS : Colour difference - Spectral angle θ - Spectral index k - RMSE of the spectrum - Spectral similarity - Reconstruction pass rate
- RESULTS AND DISCUSSION : Influence of the weighted fitting parameters m and n on the reconstruction effectiveness - Spectral reflectance reconstruction effect evaluation
- Table 1 : Influence of the weighting power
- Table 2 : Influence of colour sample numbers involved in fittingDOI : https://doi.org/10.1111/cote.12691 En ligne : https://drive.google.com/file/d/19OMlDxhoKtj6F2XGerdCwXlHALBvlN9B/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40391
in COLORATION TECHNOLOGY > Vol. 140, N° 1 (02/2024) . - p. 61-74[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 24413 - Périodique Bibliothèque principale Documentaires Disponible Tailored composites for high volumes / Thomas Rettenwander in KUNSTSTOFFE INTERNATIONAL, Vol. 104, N° 10 (10/2014)
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Titre : Tailored composites for high volumes : The tape laying method combines organic sheets and tapes in-line, thus reducing weight and component costs Type de document : texte imprimé Auteurs : Thomas Rettenwander, Auteur ; Paul Zwicklhuber, Auteur ; Michael Fischlschweiger, Auteur ; Georg Steinbichler, Auteur Année de publication : 2014 Article en page(s) : p. 89-93 Langues : Anglais (eng) Catégories : Algorithmes
Automobiles -- Matériaux
Bandes composites
Composites à fibres de carbone
Distribution et orientation des fibres
Eléments finis, Méthode des
Matériaux -- Allègement
Matières plastiques -- Moulage par injection
Polyamide 6
StratifiésIndex. décimale : 668.4 Plastiques, vinyles Résumé : Organic sheets open up great opportunities for lightweight automotive design, but till now their full potential has rarely been utilized. To achieve maximum possible stiffness and strength, and thus produce components at low weight and cost, new approaches to component design and manufacturing are required. These include simulation-supported structure optimization, automated production processes and tailored components. Note de contenu : - Development modules for improving the degree of lightweight design
- Optimization model maximizes component stiffness
- Production-capable design thanks to multi-linearization
- Validation through component testingEn ligne : https://drive.google.com/file/d/1p4b6SxBFKGUqTmbX0A5bvHquSDcl1pv0/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=22354
in KUNSTSTOFFE INTERNATIONAL > Vol. 104, N° 10 (10/2014) . - p. 89-93[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 16563 - Périodique Bibliothèque principale Documentaires Disponible