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1. (WO2012047004) METHOD FOR TRANSMITTING A SCALABLE HTTP STREAM FOR NATURAL REPRODUCTION UPON THE OCCURRENCE OF EXPRESSION-SWITCHING DURING HTTP STREAMING
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2012/047004    International Application No.:    PCT/KR2011/007340
Publication Date: 12.04.2012 International Filing Date: 05.10.2011
IPC:
H04N 7/12 (2006.01), H04H 20/65 (2008.01)
Applicants: HUMAX CO., LTD. [KR/KR]; Humax Village, 11-4 Sunae-dong, Bundang-gu, Seongnam-si, Gyeonggi-do 463-825 (KR) (For All Designated States Except US).
YIE, Chungku [KR/KR]; (KR) (For US Only).
LEE, Ul Ho [KR/KR]; (KR) (For US Only)
Inventors: YIE, Chungku; (KR).
LEE, Ul Ho; (KR)
Agent: S&IP PATENT & LAW FIRM; (2F. Samheung Yeoksam BIdg., Yeoksam-dong) 5 Teheran-ro 14-gil Gangnam-gu Seoul 135-080 (KR)
Priority Data:
10-2010-0097247 06.10.2010 KR
Title (EN) METHOD FOR TRANSMITTING A SCALABLE HTTP STREAM FOR NATURAL REPRODUCTION UPON THE OCCURRENCE OF EXPRESSION-SWITCHING DURING HTTP STREAMING
(FR) PROCÉDÉ DE TRANSMISSION D'UN FLUX DE DONNÉES HTTP ÉCHELONNABLE POUR UNE REPRODUCTION NATURELLE LORS DE L'OCCURRENCE D'UNE COMMUTATION D'EXPRESSION DURANT LE FLUX DE DONNÉES HTTP
(KO) HTTP 스트리밍의 표현 스위칭시 자연스런 재생을 위한 스케일러블한 HTTP 스트리밍 전송 방법
Abstract: front page image
(EN)Disclosed is a processing method which enables natural reproduction upon the occurrence of expression=switching during the transmission of an HTTP stream. The method comprises the following steps: constructing, for a first expression and from base layers of scalable video coding, a plurality of segments; constructing, for a second expression which has a higher quality than the first expression and from enhanced layers of scalable video coding, a plurality of segments; and transmitting at least a portion of the plurality of segments for the first expression in the event of transmitting the first expression, and transmitting at least a portion of the plurality of segments for the second expression together with at least a portion of the plurality of segments for the first expression in the event of transmitting the second expression. According to the present invention, only base layers may be extracted from the second expression and used as a reference in decoding low bit-rate segments to be reproduced in the future, thus providing multimedia content that is seamlessly displayed upon the occurrence of expression-switching.
(FR)La présente invention concerne un procédé de traitement qui permet une reproduction naturelle lors de l'occurrence d'une commutation d'expression durant la transmission d'un flux de données HTTP. Le procédé comprend les étapes suivantes consistant à : construire, à partir de couches de base de codage vidéo échelonnable, une pluralité de segments pour une première expression; construire, à partir de couches améliorées de codage vidéo échelonnable, une pluralité de segments pour une seconde expression qui est de meilleure qualité que la première expression; et transmettre au moins une partie de la pluralité de segments pour la première expression dans l'événement de transmission de la première expression, et transmettre au moins une partie de la pluralité de segments pour la seconde expression conjointement avec au moins une partie de la pluralité de segments pour la première expression dans l'événement de transmission de la seconde expression. Selon la présente invention, seules des couches de base peuvent être extraites de la seconde expression et peuvent servir de référence dans le décodage de segments de faible débit devant être reproduits dans le futur, ce qui fournit un contenu multimédia qui est affiché de manière homogène lors de l'occurrence d'une commutation d'expression.
(KO)HTTP 스트리밍 전송 중에 표현 스위칭이 일어날 경우의 자연스러운 재생을 가능케하는 처리 방법이 개시된다. 제 1 표현에 대해서, 스케일러블 비디오 코딩의 베이스 레이어로 구성된 복수의 세그먼트를 구성하는 단계, 상기 제 1 표현에 비해서 고화질의 제 2 표현에 대해서, 스케일러블 비디오 코딩의 인핸스드 레이어로 구성된 복수의 세그먼트를 구성하는 단계 및 상기 제 1 표현의 전송시에는 상기 제 1 표현에 대한 복수의 세그먼트 중 적어도 일부를 전송하고, 상기 제 2표현의 전송시에는 상기 제 1 표현에 대한 복수의 세그먼트 중 적어도 일부와 함께 상기 제 2 표현에 대한 복수의 세그먼트 중 적어도 일부를 전송하는 단계를 포함하여 구설될 수 있다. 따라서, 표현 스위칭이 발생될 경우, 제 2 표현에서 베이스 레이어만을 추출하여 다음에 재생될 저비트율 세그먼트를 디코딩할 때 참조하여 사용할 수 있기 때문에 화면의 끊김 없이 멀티미디어 컨텐츠를 제공할 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, 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)