WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO2018011303) LAST COEFFICIENT CODING FOR ADAPTIVE TRANSFORM BASED VIDEO COMPRESSION
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.:    WO/2018/011303    International Application No.:    PCT/EP2017/067616
Publication Date: 18.01.2018 International Filing Date: 12.07.2017
IPC:
H04N 19/176 (2014.01), H04N 19/147 (2014.01), H04N 19/13 (2014.01), H04N 19/12 (2014.01), H04N 19/463 (2014.01), H04N 19/132 (2014.01), H04N 19/18 (2014.01)
Applicants: THOMSON LICENSING [FR/FR]; 1-5, rue Jeanne d'Arc 92130 Issy-les-Moulineaux (FR)
Inventors: LASSERRE, Sébastien; (FR).
PURI, Saurabh; (FR).
LE CALLET, Patrick; (FR)
Agent: HUCHET, Anne; (FR).
PERROT, Sébastien; (FR).
LORETTE, Anne; (FR).
ROLLAND, Sophie; (FR).
LABELLE, Lilian; (FR).
AUMONIER, Sébastien; (FR).
MORAIN, David; (FR)
Priority Data:
16305919.9 15.07.2016 EP
Title (EN) LAST COEFFICIENT CODING FOR ADAPTIVE TRANSFORM BASED VIDEO COMPRESSION
(FR) CODAGE DE DERNIER COEFFICIENT DESTINÉ À UNE COMPRESSION VIDÉO BASÉE SUR UNE TRANSFORMÉE ADAPTATIVE
Abstract: front page image
(EN)Coding of the last coded coefficient position is performed by basing the coding of the y coordinate of the position of the last coded coefficient on knowledge of the size of the partial transform used to generate a block of coefficients from a block of video pixels. This enables a context adaptive coding of the last coded coefficient parameter to be performed much more efficiently.
(FR)Selon la présente invention, le codage de la position du dernier coefficient codé est effectué en basant le codage de la coordonnée y de la position du dernier coefficient codé sur la connaissance de la taille de la transformée partielle utilisée pour générer un bloc de coefficients à partir d'un bloc de pixels vidéo. Ceci permet d'effectuer beaucoup plus efficacement un codage adaptatif au contexte du paramètre du dernier coefficient codé.
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 (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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)