Patent SG-11201408320W-A (SG)
Title: Encoding and decoding video sequences comprising reference picture sets
Inventor: STRÖM JACOB
Filed: 2013-07-01
Abstract: (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 3 January 2014 (03.01.2014) WIPOIPCT (10) International Publication Number WO 2014/003682 A1 (51) International Patent Classification: H04N 7/26 (2006.01) H04N 7/50 (2006.01) H04N 7/36 (2006.01) (21) International Application Number: (22) International Filing Date: (25) Filing Language: (26) Publication Language: PCT/SE2013/050835 1 July 2013 (01.07.2013) English (30) Priority Data: 61/666,235 29 June 2012 (29.06.2012) English US (71) Applicant: TELEFONAKTIEBOLAGET L M ERIC­ SSON (PUBL) [SE/SE]; SE-164 83 Stockholm (SE). (72) Inventors: STROM, Jacob; Heleneborgsgatan 6c, 2tr., S- 117 32 Stockholm (SE). SAMUELSSON, Jonatan; Stad- shagsplan 1, S-112 50 Stockholm (SE). SJOBERG, Rick- ard; Robert Almstromsgatan 9a, S-l 13 36 Stockholm (SE). (74) Agent: EGRELIUS, Fredrik; Ericsson AB, Patent Unit Kista DSM, SE-16480 Stockholm (SE). (81) Designated States (unless otherwise indicated, for every kind of national protection available)'. 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, 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, 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, PA, 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. (84) Designated States (unless otherwise indicated, for every kind of regional protection available)'. ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (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), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3)) — before the expiration of the time limit for amending the claims and to be republished in the event of receipt of amendments (Rule 48.2(h)) (54) Title: ENCODING AND DECODING VIDEO SEQUENCES COMPRISING REFERENCE PICTURE SETS Fig. 10 1000 1001 Send RPSs in transmission order T CJ oo m o o o CJ O & NO 1002 1003 Inter-prediction? .... JYES * RPS signaled in ' \" ..slice header... JNO No transmission of delta idx minusl 1005 YE^ 1004 Send delta idx minusl (57) Abstract: A method (1000) of encoding a video sequence comprising Reference Picture Sets (RPSs) is provided. The method comprises arranging (1001) the RPSs in transmission order in a data structure, such as a Sequence Parameter Set (SPS), determining (1003) whether explicit RPS transmission is used for an RPS of current a picture of the video sequence, and encoding (1004) in­ formation indicating an RPS comprised in the data structure to be used for predicting the RPS of the current picture, such as delta_idx_minusl, only if explicit RPS transmission is used. By transmitting delta_idx_minus 1 only if explicit RPS transmission is used, and interpreting delta_idx_minus 1 to be equal to zero otherwise, reduced bitrate achieved. a is Further, method a of decoding a video sequence comprising RPSs, corresponding computer programs and computer program products, as well as corresponding en­ coders and decoders are provided.