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1. (WO2018127625) AN APPARATUS, A METHOD AND A COMPUTER PROGRAM FOR VIDEO CODING AND DECODING
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Pub. No.: WO/2018/127625 International Application No.: PCT/FI2017/050951
Publication Date: 12.07.2018 International Filing Date: 29.12.2017
IPC:
H04N 19/503 (2014.01) ,H04N 19/597 (2014.01) ,H04N 19/105 (2014.01) ,G06T 3/60 (2006.01) ,G06T 3/00 (2006.01)
[IPC code unknown for H04N 19/503][IPC code unknown for H04N 19/597][IPC code unknown for H04N 19/105]
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
T
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
3
Geometric image transformation in the plane of the image, e.g. from bit-mapped to bit-mapped creating a different image
60
Rotation of a whole image or part thereof
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
T
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
3
Geometric image transformation in the plane of the image, e.g. from bit-mapped to bit-mapped creating a different image
Applicants:
NOKIA TECHNOLOGIES OY [FI/FI]; Karaportti 3 02610 Espoo, FI
Inventors:
AMINLOU, Alireza; FI
HANNUKSELA, Miska; FI
GHAZNAVI YOUVALARI, Ramin; FI
Agent:
NOKIA TECHNOLOGIES OY; Ari Aarnio IPR Department Karakaari 7 02610 Espoo, FI
UUSITALO, Arttu; FI
Priority Data:
2017500703.01.2017FI
Title (EN) AN APPARATUS, A METHOD AND A COMPUTER PROGRAM FOR VIDEO CODING AND DECODING
(FR) APPAREIL, PROCÉDÉ ET PROGRAMME INFORMATIQUE POUR LE CODAGE ET LE DÉCODAGE VIDÉO
Abstract:
(EN) There are disclosed various methods, apparatuses and computer program products for video encoding and decoding. In some embodiments a first reconstructed picture is interpreted as a first three- dimensional picture in a coordinate system. A rotation is obtained and the first three-dimensional picture is projected (612, 614) onto a first geometrical projection structure (613, 615), the geometrical projection structure having an orientation according to the rotation within the coordinate system. A first reference picture is formed (616) by unfolding the first geometrical projection structure into a second geometrical projection structure, and at least a block of a second reconstructed picture is predicted from the first reference picture.
(FR) La présente invention concerne divers procédés, appareils et produits programmes d'ordinateur destinés au codage et au décodage vidéo. Dans certains modes de réalisation, une première image reconstruite est interprétée comme une première image tridimensionnelle dans un système de coordonnées. Une rotation est obtenue et la première image tridimensionnelle est projetée (612, 614) sur une première structure de projection géométrique (613, 615), la structure de projection géométrique ayant une orientation selon la rotation à l'intérieur du système de coordonnées. Une première image de référence est formée (616) par dépliage de la première structure de projection géométrique en une seconde structure de projection géométrique, et au moins un bloc d'une seconde image reconstruite est prédit à partir de la première image de référence.
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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, 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: English (EN)