Patent SG-11201806865Y-A (SG)
Title: Method and apparatus of video coding with affine motion compensation
Inventor: CHUANG TZU-DER
IPC: H04N19/105
Filed: 2017-03-13
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 21 September 2017 (21.09.2017) WIPO I PCT (10) International Publication Number WO 2017/157259 Al (51) International Patent Classification: H04N 19/105 (2014.01) (21) International Application Number: PCT/CN2017/076420 (22) International Filing Date: 13 March 2017 (13.03.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: PCT/CN2016/076360 15 March 2016 (15.03.2016) CN 62/437,757 22 December 2016 (22.12.2016) US (71) Applicant: MEDIATEK INC. [CN/CN]; No.1, Dusing Road 1st, Science-Based Industrial Park, Hsin-Chu, Taiwan 300 (CN). (72) Inventors: CHUANG, Tzu-Der; 5F., No.50, Zhuangjing 5th St., Zhubei City, Hsinchu County, Taiwan 302 (CN). CHEN, Ching-Yeh; 4F., No.809, Sec.5, Zhongxiao E.Rd., Nangang Dist., Taipei City, Taiwan 115 (CN). HUANG, Han; No.3 Shangyuancun, Haidian District, Beijing 100044 (CN). XU, Xiaozhong; 2318 Setter Run Ln, State College, Pennsylvania 16801 (US). LIU, Shan; 1155 Nevada Ave., San Jose, California 95125 (US). (74) Agent: BEIJING SANYOU INTELLECTUAL PROP- ERTY AGENCY LTD.; 16th Fl., Block A, Corporate Square, No.35 Jinrong Street, Beijing 100033 (CN). (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, 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). [Continued on next page] = (54) Title: METHOD AND APPARATUS OF VIDEO CODING WITH AFFINE MOTION COMPENSATION (57) : A method and apparatus for video encoding and decoding with affme motion compensation are dis- closed. An embodiment of the method receives input data associated with a current block coded or to be coded in an affme mode. Two or more motion vectors of a neighboring 632 634 block are retrieved from a buffer, where at least one of the 635 retrieved motion vectors is not corresponding to a sub- 63 637 block in a first neighboring block row or a first neighboring block column. The method derives an affme candidate in- 625 cluding affme motion vectors using the retrieved two or 636 more motion vectors, and encodes or decodes the current 626 block by predicting the current block using one or more 612 motion compensated blocks by the derived affine candidate. The buffer for affme candidate derivation stores selective motion vectors less than all motion vectors of coded blocks in the current picture. 616 I) 615 Fig. 6 11111111111111011101111111111101011111011101111111111111011111111110111111111110111111 622 624 633 623 62 W O 20 17157 / 259 Al 61 613 614 60 WO 2017/157259 Al MIDEDIMOM0101011101010MOHOMOVEHOMOVOIMIE Published: — with international search report (Art. 21(3))