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1. (WO2019049184) LIGHTING METHOD AND SYSTEM TO IMPROVE THE PERSPECTIVE COLOUR PERCEPTION OF AN IMAGE OBSERVED BY A USER
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Pub. No.: WO/2019/049184 International Application No.: PCT/IT2018/050157
Publication Date: 14.03.2019 International Filing Date: 17.08.2018
IPC:
H05B 33/08 (2006.01) ,H05B 37/02 (2006.01)
H ELECTRICITY
05
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
B
ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
33
Electroluminescent light sources
02
Details
08
Circuit arrangements not adapted to a particular application
H ELECTRICITY
05
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
B
ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
37
Circuit arrangements for electric light sources in general
02
Controlling
Applicants:
LAMANNA, Salvatore [IT/IT]; IT
Inventors:
LAMANNA, Salvatore; IT
Agent:
TIBURZI, Andrea; IT
SANTI, Filippo; IT
BANCHETTI, Marina; IT
GITTO, Serena; IT
BALZANO, Francesca; IT
MULAS, Chiara; IT
FERRIERO, Paolo; IT
BIONDINI, Daniele; IT
CATALDI, Silvia; IT
Priority Data:
10201700009912005.09.2017IT
Title (EN) LIGHTING METHOD AND SYSTEM TO IMPROVE THE PERSPECTIVE COLOUR PERCEPTION OF AN IMAGE OBSERVED BY A USER
(FR) PROCÉDÉ ET SYSTÈME D'ÉCLAIRAGE POUR AMÉLIORER LA PERCEPTION DE COULEUR EN PERSPECTIVE D'UNE IMAGE OBSERVÉE PAR UN UTILISATEUR
Abstract:
(EN) This invention relates to a lighting method for illuminating an environment (A) by means of a plurality of light sources (2y), with i = 1, N, where N is a positive integer and j = 1,..., M, where M is a positive integer, wherein the method is comprised of the following steps: A. acquisition (110) of a video signal v(t), in which the image of each frame (3) is divided into a plurality of boxes (3ij); B. subdivision (120) of the video signal v(t) into a plurality of video signal boxes vij(t), each associated with the image portion of each frame (3) displayed on a respective box (3ij); C. frequency processing (130) of the frame video signals vjj(t), for obtaining the spectra of the respective luminance Yij(f) and chrominance signals CIJ(f) associated with each video signal box vjj(t); D. extraction of the dominant frequency band (140) of the luminance signal spectrum Yij(f) associated with each box video signal vjj(t); E. extraction of the dominant frequency band (150) of the chrominance signal spectrum CIJ(f) associated with each box video signal vjj(t); F. sum of the processed spectra of luminance and chrominance signals; and G. obtaining the time driving signal pijCtrI(t) of each of the light sources (2ij). this invention also relates to a computer program, a storage medium and lighting system (IS).
(FR) La présente invention concerne un procédé d'éclairage pour éclairer un environnement (A) au moyen d'une pluralité de sources de lumière (2y), avec i = 1...N, où N est un entier positif et j = 1...M, où M est un nombre entier positif, le procédé comprenant les étapes suivantes : A. acquisition (110) d'un signal vidéo v(t), dans lequel l'image de chaque trame (3) est divisée en une pluralité de boîtes (3ij) ; B. subdivision (120) du signal vidéo v(t) en une pluralité de boîtes de signal vidéo vij(t), chacune étant associée à la partie d'image de chaque trame (3) affichée sur une boîte respective (3ij) ; C. traitement dans le domaine fréquentiel (130) des signaux vidéo de trame vjj(t), pour obtenir les spectres de la luminance respective Yij(f) et des signaux de chrominance CIJ(f) associés à chaque boîte de signal vidéo vjj(t) ; D. extraction de la bande de fréquence dominante (140) du spectre de signal de luminance Yij(f) associé à chaque signal vidéo de boîte vjj(t) ; E. extraction de la bande de fréquence dominante (150) du spectre de signal de chrominance CIJ(f) associé à chaque signal vidéo de boîte vjj(t) ; F. sommation des spectres traités de signaux de luminance et de chrominance ; et G. obtention du signal de commande temporelle pijCtrI(t) de chacune des sources de lumière (2ij). L'invention concerne également un programme informatique, un support de stockage et un système d'éclairage (IS).
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: Italian (IT)