Patent SG-11201806738P-A (SG)
Title: Using luma information for chroma prediction with separate luma-chroma framework in video coding
Inventor: SEREGIN VADIM
IPC: H04N19/176
Filed: 2017-03-21
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property -, Organization 11111111011110111010101111101011111011101111011101100111111011111101111011111 International Bureau ... .... ..Yjd ..... ...,/ (10) International Publication Number (43) International Publication Date WO 2017/165391 Al 28 September 2017 (28.09.2017) WIP0 I PCT (51) International Patent Classification: (74) Agent: EVANS, Matthew J.; Shumaker & Sieffert, PA., H04N 19/103 (2014.01) H04N 19/186 (2014.01) 1625 Radio Drive, Suite 100, Woodbury, Minnesota 55125 H04N 19/136 (2014.01) H04N 19/119 (2014.01) (US). H04N 19/176 (2014.01) (81) Designated States (unless otherwise indicated, for every (21) International Application Number: kind of national protection available): AE, AG, AL, AM, PCT/US2017/023373 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, (22) International Filing Date: DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, 21 March 2017 (21.03.2017) HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, (25) Filing Language: English KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, (26) Publication Language: English NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, (30) Priority Data: RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, 62/311,265 21 March 2016 (21.03.2016) US TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, 15/463,428 20 March 2017 (20.03.2017) US ZA, ZM, ZW. (71) Applicant: QUALCOMM INCORPORATED [US/US]; (84) Designated States (unless otherwise indicated, for every Attn: International IP Administration, 5775 Morehouse kind of regional protection available): ARIPO (BW, GH, Drive, San Diego, California 92121-1714 (US). GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, (72) Inventors: SEREGIN, Vadim; 5775 Morehouse Drive, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, San Diego, California 92121-1714 (US). ZHAO, Xin; DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, — 5775 Morehouse Drive, San Diego, California 92121-1714 LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, — (US). SAID, Amir; 5775 Morehouse Drive, San Diego, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, California 92121-1714 (US). KARCZEWICZ, Marta; GW, KM, ML, MR, NE, SN, TD, TG). = 5775 Morehouse Drive, San Diego, California 92121-1714 (US). Published: = — with international search report (Art. 21(3)) = = = = = = (54) Title: USING LUMA INFORMATION FOR CHROMA PREDICTION WITH SEPARATE LUMA-CHROMA FRAME- = WORK IN VIDEO CODING = = = = Chroma sub- Chroma partition/ block = / (4 2 0) - blocks, where lama Lurna sub-block information can be /taken forchroma IIIIIIIMEIV Aargriar r 11 AinglAhTir .4 Lame partititions 11 Lama .mples C:r FIG. 3 carresP° \" th g ' en o chroma partition ir) I-1 (57) : A method of decoding video data comprises receiving a bitstream of encoded video data, the encoded video data rep - ---- resenting partitioned luma blocks and partitioned chroma blocks, wherein the chroma blocks are partitioned independently of the IN luma blocks, determining a respective coding mode corresponding to the respective partitioned luma blocks, decoding the respective C partitioned luma blocks according to the determined respective coding modes, decoding a first syntax element indicating that the re - N spective coding modes associated with the respective partitioned luma blocks are to be used for decoding a first partitioned chroma O block, wherein the first partitioned chroma block is aligned with two or more partitioned luma blocks, determining a chroma coding ,1 . mode for the first partitioned chroma block according to a function of the respective coding modes of the two or more partitioned luma blocks, and decoding the first partitioned chroma block in accordance with the determined chroma coding mode.