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1. (WO2012121567) METHOD AND DEVICE FOR SYNCHRONIZING REFERENCE IMAGE AND SUPPLEMENTARY IMAGE IN REAL-TIME BROADCAST PROGRAM
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2012/121567    International Application No.:    PCT/KR2012/001745
Publication Date: 13.09.2012 International Filing Date: 09.03.2012
IPC:
H04N 13/00 (2006.01)
Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE [KR/KR]; 161 Gajeong-dong, Yuseong-gu Daejeon-si 305-700 (KR) (For All Designated States Except US).
JUNG, Kwanghee [KR/KR]; (KR) (For US Only).
YIM, Hyun Jeong [KR/KR]; (KR) (For US Only).
YUN, Kug Jin [KR/KR]; (KR) (For US Only).
LEE, Gwang Soon [KR/KR]; (KR) (For US Only).
KWON, Hyoung Jin [KR/KR]; (KR) (For US Only).
CHEONG, Won Sik [KR/KR]; (KR) (For US Only).
HUR, Nam Ho [KR/KR]; (KR) (For US Only)
Inventors: JUNG, Kwanghee; (KR).
YIM, Hyun Jeong; (KR).
YUN, Kug Jin; (KR).
LEE, Gwang Soon; (KR).
KWON, Hyoung Jin; (KR).
CHEONG, Won Sik; (KR).
HUR, Nam 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:
10-2011-0021256 10.03.2011 KR
10-2012-0024344 09.03.2012 KR
Title (EN) METHOD AND DEVICE FOR SYNCHRONIZING REFERENCE IMAGE AND SUPPLEMENTARY IMAGE IN REAL-TIME BROADCAST PROGRAM
(FR) PROCÉDÉ ET DISPOSITIF DE SYNCHRONISATION D'UNE IMAGE DE RÉFÉRENCE ET D'UNE IMAGE SUPPLÉMENTAIRE DANS UN PROGRAMME DIFFUSÉ EN TEMPS RÉEL
(KO) 실시간 방송 프로그램의 기준 영상과 부가 영상간의 동기화 방법 및 장치
Abstract: front page image
(EN)Method and device for synchronizing reference image and supplementary image in real-time broadcast program. The present invention provides a synchronization method for: calculating a time difference between a current frame of a reference image and a reference time stamp on the basis of the reference time stamp, which is contained in a program level descriptor and indicates a start time of a frame regarding a reference image; and adjusting synchronization between the frame regarding the reference image and a frame regarding a supplementary image by using the time difference. Since synchronous time information is signaled together with a stream delivered in real time, synchronization between a stored supplementary image and a reference image transmitted in real time is enabled even though a first PMT of a time when a stereoscopic video service is started is not received or a packet error is generated. Thus, the invention can provide a stable stereoscopic image service
(FR)L'invention concerne un procédé et un dispositif de synchronisation d'une image de référence et d'une image supplémentaire dans un programme diffusé en temps réel. La présente invention propose un procédé de synchronisation pour : calculer une différence de temps entre une trame actuelle d'une image de référence et un horodatage de référence sur la base de l'horodatage de référence, qui est contenu dans un descripteur de niveau de programme et qui indique un instant de début d'une trame concernant une image de référence ; et ajuster la synchronisation entre la trame concernant l'image de référence et une trame concernant une image supplémentaire en utilisant la différence de temps. Etant donné que les informations de temps synchrones sont envoyées en tant que signalisation avec un flux délivré en temps réel, la synchronisation entre une image supplémentaire mémorisée et une image de référence transmise en temps réel est possible même si un premier PMT d'un instant auquel un service vidéo stéréoscopique est débuté n'est pas reçu ou si une erreur de paquet est générée. Ainsi, l'invention peut fournir un service d'image stéréoscopique stable.
(KO)본 발명은 실시간 방송 프로그램의 기준 영상과 부가 영상간의 동기화 방법 및 장치에 관한 것이다. 이러한 본 명세서는 프로그램 레벨의 서술자에 포함되고 기준 영상에 관한 프레임의 시작시간을 지시하는 기준시간 스탬프를 기반으로, 기준 영상의 현재 프레임과 기준시간 스탬프간의 시간차이를 계산하고, 시간차이를 이용하여 기준 영상에 관한 프레임과 부가 영상에 관한 프레임의 동기를 맞추는 동기화 방법을 개시한다. 실시간으로 송출되는 스트림과 함께 동기 시간 정보를 시그널링함으로써, 스테레오스코픽 비디오 서비스가 시작되는 시점의 첫 PMT를 수신하지 못하거나 패킷에러가 발생했을 때에도 저장된 부가 영상과 실시간으로 전송되는 기준 영상간의 동기화가 가능하다. 이로써 안정적으로 스테레오스코픽 영상 서비스를 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)