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1. (WO2018140037) 3D PRINTED OBJECT HALFTONE IMAGE GENERATION
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Pub. No.: WO/2018/140037 International Application No.: PCT/US2017/015385
Publication Date: 02.08.2018 International Filing Date: 27.01.2017
IPC:
H04N 1/405 (2006.01) ,B33Y 50/00 (2015.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
1
Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
40
Picture signal circuits
405
Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
[IPC code unknown for B33Y 50]
Applicants:
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. [US/US]; 11445 Compaq Center Drive W. Houston, Texas 77070, US
PURDUE RESEARCH FOUNDATION [US/US]; 1281 Win Hentschel Blvd. West Lafayette, Indiana 47906, US
Inventors:
MAO, Ruiyi; US
ALLEBACH, Jan; US
JIANG, Wanling; US
ABELLO ROSELLO, Lluis; ES
ULICHNEY, Robert; US
SARKAR, Utpal Kumar; ES
Agent:
LEMMON, Marcus B.; US
KANG, Timothy B.; US
Priority Data:
Title (EN) 3D PRINTED OBJECT HALFTONE IMAGE GENERATION
(FR) GÉNÉRATION D'IMAGE EN DEMI-TONS D'OBJET IMPRIMÉ EN 3D
Abstract:
(EN) According to an example, an apparatus may include a processor and a memory. The memory may have stored thereon machine readable instructions that may cause the processor to access an initial halftone image of a three-dimensional (3D) object, the initial halftone image being generated from a continuous tone image of the 3D object. The instructions may also cause the processor to iteratively modify voxel data for the initial halftone image to identify updated voxel data that more accurately corresponds to the continuous tone image than the initial halftone image and to generate halftone image printing data for the 3D object containing the updated voxel data.
(FR) L'invention concerne un appareil pouvant comprendre, selon un exemple, un processeur et une mémoire. Dans la mémoire peuvent être stockées des instructions lisibles par machine pouvant amener le processeur à accéder à une image en demi-tons initiale d'un objet tridimensionnel (3D), l'image en demi-tons initiale étant générée à partir d'une image en tons continus de l'objet 3D. Les instructions peuvent également amener le processeur à modifier de façon itérative des données de voxels relatives à l'image en demi-tons initiale pour identifier des données de voxels actualisées qui correspondent de manière plus exacte à l'image en tons continus qu'à l'image en demi-tons initiale et à générer des données d'impression d'image en demi-tons relatives à l'objet 3D contenant les données de voxels actualisées.
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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, 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: English (EN)