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1. (WO2010076382) METHOD AND APPARATUS FOR FINDING DATA QUANTISATION ERROR
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/076382 International Application No.: PCT/FI2009/051036
Publication Date: 08.07.2010 International Filing Date: 28.12.2009
IPC:
G06F 17/00 (2006.01) ,H04N 1/405 (2006.01) ,G06T 5/00 (2006.01)
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
17
Digital computing or data processing equipment or methods, specially adapted for specific functions
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
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
T
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
5
Image enhancement or restoration, e.g. from bit-mapped to bit-mapped creating a similar image
Applicants:
NOKIA CORPORATION [FI/FI]; Keilalahdentie 4 FI-02150 Espoo, FI (AllExceptUS)
OBZHIROV, Anton [RU/GB]; GB (UsOnly)
Inventors:
OBZHIROV, Anton; GB
Agent:
NOKIA CORPORATION; IPR Department Virpi Tognetty Keilalahdentie 4 FI-02150 Espoo, FI
Priority Data:
0823701.831.12.2008GB
Title (EN) METHOD AND APPARATUS FOR FINDING DATA QUANTISATION ERROR
(FR) PROCÉDÉ ET APPAREIL DE RECHERCHE D'ERREUR DE QUANTIFICATION DES DONNÉES
Abstract:
(EN) An example embodiment provides a method, comprising: storing pre-calculated quantisation error data relating to a data quantisation process; receiving data to be quantised; quantising the data to reduce the number of significant bits thereof; and determining a quantisation error for the quantised data from the pre-calculated quantisation error data.
(FR) La présente invention concerne, par un mode de réalisation typique, un procédé comprenant les opérations suivantes: enregistrement en mémoire de données d'erreurs de quantification pré-calculées se rapportant à un traitement de quantification de données; réception des données à quantifier; quantification des données de façon à y réduire le nombre de bits significatifs; et utilisation des données d'erreur de quantification pré-calculées pour déterminer une erreur de quantification concernant les données quantifiées.
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, 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, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (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, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP2370908US20130011076