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1. (WO2012121535) INTRA PREDICTION METHOD OF CHROMINANCE BLOCK USING LUMINANCE SAMPLE, AND APPARATUS USING SAME
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2012/121535    International Application No.:    PCT/KR2012/001637
Publication Date: 13.09.2012 International Filing Date: 06.03.2012
IPC:
H04N 7/34 (2006.01)
Applicants: LG ELECTRONICS INC. [KR/KR]; 20 Yeouido-dong, Yeongdeungpo-gu Seoul 150-721 (KR) (For All Designated States Except US).
JEON, Yong Joon [KR/KR]; (KR) (For US Only).
PARK, Seung Wook [KR/KR]; (KR) (For US Only).
LIM, Jae Hyun [KR/KR]; (KR) (For US Only).
KIM, Jung Sun [KR/KR]; (KR) (For US Only).
PARK, Joon Young [KR/KR]; (KR) (For US Only).
CHOI, Young Hee [KR/KR]; (KR) (For US Only).
SUNG, Jae Won [KR/KR]; (KR) (For US Only).
JEON, Byeong Moon [KR/KR]; (KR) (For US Only)
Inventors: JEON, Yong Joon; (KR).
PARK, Seung Wook; (KR).
LIM, Jae Hyun; (KR).
KIM, Jung Sun; (KR).
PARK, Joon Young; (KR).
CHOI, Young Hee; (KR).
SUNG, Jae Won; (KR).
JEON, Byeong Moon; (KR)
Agent: YANG, Moon Ock; Essen Patent & Law Firm, 2F. Samheung Yeoksam Bldg. 735-10 Yeoksam-dong Gangnam-gu, Seoul 135-080 (KR)
Priority Data:
61/449,698 06.03.2011 US
61/454,586 21.03.2011 US
61/589,308 21.01.2012 US
Title (EN) INTRA PREDICTION METHOD OF CHROMINANCE BLOCK USING LUMINANCE SAMPLE, AND APPARATUS USING SAME
(FR) PROCÉDÉ DE PRÉDICTION INTRA-IMAGE D'UN BLOC DE CHROMINANCE UTILISANT UN ÉCHANTILLON DE LUMINANCE, ET APPAREIL METTANT EN œUVRE CE PROCÉDÉ
(KO) 휘도 샘플을 이용한 색차 블록의 화면 내 예측 방법 및 이러한 방법을 사용하는 장치
Abstract: front page image
(EN)Disclosed are an intra prediction method of a chrominance block using a luminance sample and an apparatus using the same. An image decoding method comprises the steps of: calculating an intra prediction mode of a chrominance block on the basis of an LM mapping table when the chrominance block uses an LM; and generating a prediction block for the chrominance block on the basis of the calculated intra prediction mode of the chrominance block. When intra prediction mode information of chrominance blocks are decoded, mutually different tables are used depending on whether or not an LM is used, so that encoding and decoding can be performed without an unnecessary waste of bits.
(FR)L'invention concerne un procédé de prédiction intra-image d'un bloc de chrominance utilisant un échantillon de luminance et un appareil mettant en œuvre ce procédé. Un procédé de décodage d'image comprend les étapes consistant à: calculer un mode de prédiction intra-image d'un bloc de chrominance sur la base d'une table de mappage LM, lorsque le bloc de chrominance utilise un LM; et générer un bloc de prédiction pour le bloc de chrominance sur la base du mode de prédiction intra-image calculé du bloc de chrominance. Lorsque des informations de mode de prédiction intra-image de blocs de chrominance sont décodées, des tables différentes l'une de l'autre sont mises en oeuvre selon qu'un LM est utilisé ou non, ce qui permet d'effectuer un codage ou un décodage sans gaspillage inutile de bits.
(KO)휘도 샘플을 이용한 색차 블록의 화면 내 예측 방법 및 이러한 방법을 사용하는 장치가 개시되어 있다. 영상 복호화 방법은 색차 블록이 LM을 사용한 경우 LM 매핑 테이블을 기초로 상기 색차 블록의 화면 내 예측 모드를 산출하는 단계와 산출된 상기 색차 블록의 화면 내 예측 모드를 기초로 상기 색차 블록의 예측 블록을 생성하는 단계를 포함할 수 있다. 색차 블록의 화면 내 예측 모드 정보를 복호함에 있어 LM 사용여부에 따라 서로 다른 매핑 테이블을 사용함으로서 불필요한 비트의 낭비가 없도록 부복호화를 수행할 수 있다.
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, QA, RO, RS, RU, RW, 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, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, 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, ML, MR, NE, SN, TD, TG).
Publication Language: Korean (KO)
Filing Language: Korean (KO)