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1. (WO2011155786) ENTROPY DECODING METHOD AND DECODING DEVICE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2011/155786    International Application No.:    PCT/KR2011/004247
Publication Date: 15.12.2011 International Filing Date: 09.06.2011
IPC:
H04N 7/26 (2006.01), H04N 7/32 (2006.01), H04N 7/50 (2006.01)
Applicants: LG ELECTRONICS INC. [KR/KR]; 20 Yeouido-dong, Yeongdeungpo-gu Seoul 150-721 (KR) (For All Designated States Except US).
CHOI, Young Hee [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).
JEON, Byeong Moon [KR/KR]; (KR) (For US Only).
JEON, Yong Joon [KR/KR]; (KR) (For US Only)
Inventors: CHOI, Young Hee; (KR).
PARK, Seung Wook; (KR).
LIM, Jae Hyun; (KR).
KIM, Jung Sun; (KR).
PARK, Joon Young; (KR).
JEON, Byeong Moon; (KR).
JEON, Yong Joon; (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:
61/352,828 09.06.2010 US
61/367,441 25.07.2010 US
Title (EN) ENTROPY DECODING METHOD AND DECODING DEVICE
(FR) PROCÉDÉ ET DISPOSITIF D'ENCODAGE ENTROPIQUE
(KO) 엔트로피 복호화 방법 및 복호화 장치
Abstract: front page image
(EN)Disclosed are a method for entropy decoding and a device for performing the method. The method for entropy decoding comprises the following steps: determining whether the number of occurrences for a first code number is greater than or equal to the number of occurrences for a second code number, which is a code number that is less than the first code number by one; and assigning to the second code number a first syntax element value that was assigned to the first code number, and to the first code number a second syntax element value that was assigned to the second code number, when the number of occurrences for the first code number is greater than or equal to the number of occurrences for the second code number. Therefore, the number of bits necessary for image encoding is reduced and the efficiency of image encoding is enhanced thereby.
(FR)La présente invention concerne un procédé d'encodage entropique et un dispositif pour réaliser le procédé. Le procédé d'encodage entropique comprend les étapes suivantes qui consistent : à déterminer si le nombre d'occurrence pour un premier numéro de code est supérieur ou égal au nombre d'occurrence pour un second numéro de code, qui est un numéro de code qui est inférieur d'un au premier numéro de code ; et à attribuer, au second numéro de code, une première valeur d'élément de syntaxe qui a été attribuée au premier numéro de code, et, au premier numéro de code, une seconde valeur d'élément de syntaxe qui a été attribuée au second numéro de code, lorsque le nombre d'occurrence pour le premier numéro de code est supérieur ou égal au nombre d'occurrence pour le second numéro de code. Donc, le nombre de bits nécessaire pour l'encodage d'image est réduit et le rendement d'encodage d'image est ainsi optimisé.
(KO)엔트로피 복호화 방법 및 이러한 방법을 수행하는 장치가 개시되어 있다. 엔트로피 복호화 방법은 제1 코드 번호의 발생 횟수가 상기 제1 코드 번호보다 하나 작은 코드 번호인 제2 코드 번호의 발생 횟수보다 크거나 같은지 여부를 판단하는 단계와 제1 코드 번호의 발생 횟수가 제2 코드 번호의 발생 횟수보다 크거나 같은 경우, 제1 코드 번호에 할당되어 있던 제1 구문 요소값을 제2 코드 번호에 할당하고 제2 코드 번호에 할당되어 있던 제2 구문 요소값을 제1 코드 번호에 할당하는 단계를 포함할 수 있다. 따라서, 영상 부호화에 필요한 비트수가 감소하여 영상 부호화 효율을 높일 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, 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 (BW, GH, GM, KE, LR, 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 (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)