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1. (WO2019009506) METHOD AND DEVICE FOR DECODING IMAGE ACCORDING TO INTRA PREDICTION IN IMAGE CODING SYSTEM
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Pub. No.: WO/2019/009506 International Application No.: PCT/KR2018/003935
Publication Date: 10.01.2019 International Filing Date: 03.04.2018
IPC:
H04N 19/11 (2014.01) ,H04N 19/105 (2014.01) ,H04N 19/176 (2014.01)
[IPC code unknown for H04N 19/11][IPC code unknown for H04N 19/105][IPC code unknown for H04N 19/176]
Applicants:
엘지전자 주식회사 LG ELECTRONICS INC. [KR/KR]; 서울시 영등포구 여의대로 128 128, Yeoui-daero, Yeongdeungpo-gu Seoul 07336, KR
Inventors:
허진 HEO, Jin; KR
이령 LI, Ling; KR
Agent:
인비전 특허법인 ENVISION PATENT & LAW FIRM; 서울시 강남구 테헤란로 124, 5층 5F, 124, Teheran-ro Gangnam-gu Seoul 06234, KR
Priority Data:
62/528,44604.07.2017US
Title (EN) METHOD AND DEVICE FOR DECODING IMAGE ACCORDING TO INTRA PREDICTION IN IMAGE CODING SYSTEM
(FR) PROCÉDÉ ET DISPOSITIF DE DÉCODAGE D'IMAGE SELON UNE PRÉDICTION INTRA DANS UN SYSTÈME DE CODAGE D'IMAGE
(KO) 영상 코딩 시스템에서 인트라 예측에 따른 영상 디코딩 방법 및 장치
Abstract:
(EN) An image decoding method performed by a decoding device according to the present invention comprises the steps of: deriving an intra prediction mode for a current block; deriving an upper left reference sample, an upper right reference sample, and a lower left reference sample around the current block; generating left reference samples and upper reference samples of the current block on the basis of the upper left reference sample, the upper right reference sample, and the lower left reference sample; and generating a prediction sample of the current block by using at least one of the reference samples according to the intra prediction mode.
(FR) Un procédé de décodage d'image exécuté par un dispositif de décodage selon la présente invention comprend les étapes consistant à : calculer un mode de prédiction intra pour un bloc actuel; calculer un échantillon de référence gauche supérieur, un échantillon de référence droit supérieur et un échantillon de référence gauche inférieur autour du bloc actuel; générer des échantillons de référence gauche et des échantillons de référence supérieurs du bloc actuel sur la base de l'échantillon de référence gauche supérieur, de l'échantillon de référence droit supérieur, et de l'échantillon de référence gauche inférieur; et générer un échantillon de prédiction du bloc actuel à l'aide d'au moins l'un des échantillons de référence selon le mode de prédiction intra.
(KO) 본 발명에 따른 디코딩 장치에 의하여 수행되는 영상 디코딩 방법은 현재 블록에 대한 인트라 예측 모드를 도출하는 단계, 상기 현재 블록 주변의 좌상측 참조 샘플, 우상측 참조 샘플 및 좌하측 참조 샘플을 도출하는 단계, 상기 좌상측 참조 샘플, 상기 우상측 참조 샘플 및 상기 좌하측 참조 샘플을 기반으로 상기 현재 블록의 좌측 참조 샘플들 및 상측 참조 샘플들을 생성하는 단계, 및 상기 인트라 예측 모드에 따라 상기 참조 샘플들 중 적어도 하나를 이용하여 상기 현재 블록에 대한 예측 샘플을 생성하는 단계를 포함하는 것을 특징으로 한다.
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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: Korean (KO)
Filing Language: Korean (KO)