Patent SG-11201907262Q-A (SG)
Title: Sphere pole projections for efficient compression of 360-degree video
Inventor: VAN DER AUWERA GEERT
IPC: H04N13/161
Filed: 2018-03-21
Abstract: 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) D IV o Ho mil VII IE (10) International Publication Number WO 2018/175614 Al WIPO I PCT (51) International Patent Classification: H04N 19/597 (2014.01) H04N 19/117 (2014.01) G06T 15/20 (2011.01) H04N 19/182 (2014.01) G06T 17/00 (2006.01) H04N 1 9 / 8 5 (2014.01) H04N 5/232 (2006.01) H04N 1 9 / 8 8 (2014.01) H04N 19/196 (2014.01) H04N 13/194 (2018.01) H04N 19/176 (2014.01) H04N 13/161 (2018.01) (21) International Application Number: PCT/US2018/023604 (22) International Filing Date: 21 March 2018 (21.03.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/474,767 22 March 2017 (22.03.2017) US 62/528,264 03 July 2017 (03.07.2017) US 15/926,957 20 March 2018 (20.03.2018) US (71) Applicant: QUALCOMM INCORPORATED [US/US]; ATTN: International IP Administration, 5775 Morehouse Drive, San Diego, California 92121-1714 (US). (72) Inventors: VAN DER AUWERA, Geert; 5775 More- house Drive, San Diego, California 92121-1714 (US). COBAN, Muhammed; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). KARCZEWICZ, Marta; 5775 Morehouse Drive, San Diego, California 92121-1714 (US). (74) Agent: WONG, Claudine et al.; Kilpatrick Townsend & Stockton LLP, Mailstop: IP Docketing - 22, 1100 Peachtree Street, N.E., Suite 2800, Atlanta, Georgia 30309 (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, = (54) Title: SPHERE POLE PROJECTIONS FOR EFFICIENT COMPRESSION OF 360-DEGREE VIDEO (57) : Provided are systems and methods for processing 360-degree video data. In various implementations, a spherical representation of a 360-degree video frame can be segmented into a top region, a bottom region, and a middle region. The middle region can be mapped into one or more rectangular areas of an output video frame. The top region can be mapped into a first rectangular area of the output video frame using a mapping that converts a square to a circle, such that pixels in the circular top region are expanded to fill the first rectangular region. The bottom region can be mapped into a second rectangular area of the output video frame such that pixels in the circular bottom region are expanded to fill the second rectangular region. W O 20 18/ 175 6 14 Al FIG. 3 [Continued on next page] WO 2018/175614 Al MIDEDIMOMMIDIREI013010MOREIMEMOVOIS 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))