WO 18/ 175 903 Al (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 27 September 2018 (27.09.2018) WIP0 I PCT ill 1111u°11101VIIIVIIIVIIIolo oloinimoiminiovoimIE (10) International Publication Number WO 2018/175903 Al RECEIVE A FILE CONTAINING VIRTUAL REALITY DATA, WHEREIN THE VIRTUAL REALITY DATA REPRESENTS A 360-DEGREE VIEW OF A VIRTUAL ENVIRONMENT 1002 (51) International Patent Classification: GOOF 3/0481 (2013.01) HO4N 21/61 (2011.01) HO4N 21/4728 (2011.01) (21) International Application Number: PCT/US2018/024057 (22) International Filing Date: 23 March 2018 (23.03.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/475,714 23 March 2017 (23.03.2017) US 15/927,799 21 March 2018 (21.03.2018) US (71) Applicant: QUALCOMM INCORPORATED [US/US]; 5775 Morehouse Drive, Attn: International IP Administra- tion, San Diego, California 92121-1714 (US). (72) Inventor: WANG, Yekui; 6264 Sunrose Crest Way, San Diego, California 92130 (US). (74) Agent: CHIANG, Campbell; 5775 Morehouse Drive, At- tn: International IP Administration, San Diego, California 92121-1714 (US). (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, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, 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, SA, 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, ST, 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)) (54) Title: ADVANCED SIGNALLING OF REGIONS OF INTEREST IN OMNIDIRECTIONAL VISUAL MEDIA (57) : In various implementations, modifications and/or addi- 1 ow tions to the ISOBMFF can indicate that a file that has been formatted according to the ISOBMFF, or a format derived from the ISOBMFF, in- cludes virtual reality content. The file can include a restricted scheme in- formation box, written into a track box in the file. The restricted scheme information box can indicate a virtual reality scheme for the contents of the track. For example, a signaling mechanism may indicate a most- viewed viewport associated with the virtual reality data. EXTRACT THE VIRTUAL REALITY DATA FROM THE FILE, WHEREIN THE VIRTUAL REALITY DATA IS STORED IN THE FILE IN ACCORDANCE WITH A FILE FORMAT, WHEREIN THE FILE FORMAT SPECIFIES PLACEMENT WITHIN THE FILE OF THE VIRTUAL REALITY DATA AND SPECIFIES PLACEMENT WITHIN THE FILE OF INFORMATION !ASSOCIATED WITH THE VIRTUAL REALITY DATA, WHEREIN THE INFORMATION ASSOCIATED WITH THE VIRTUAL REALITY DATA IS STORED WITHIN A TRACK BOX 1004 EXTRACT A SAMPLE ENTRY FROM THE TRACK BOX, WHEREIN THE SAMPLE ENTRY IS ASSOCIATED WITH ONE OR MORE SAMPLES, WHEREIN THE SAMPLE ENTRY INDICATES THAT THE TRACK IS A TIMED METADATA TRACK THAT CONTAINS INFORMATION ON A MOST- VIEWED VIEWPORT ASSOCIATED WITH THE VIRTUAL REALITY DATA 1 006 FIG. 10
ADVANCED SIGNALLING OF REGIONS OF INTEREST IN OMNIDIRECTIONAL VISUAL MEDIA