Patent AU-2014285593-B2 (AU)
Title: Optical flow tracking method and apparatus
Inventor: YAN GUOXIANG
IPC: G06F17/00
Filed: 2014-01-21
Granted: 2016-05-19
Abstract: (12) tfI1W&PieSA IW (10) (43)E~# WO 2015/014111 A1 2015 * 2,P] 5 H (05.02.2015) W IPO I PCT (51) 04"*39*I : BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, G06T 7/20 (2006.01) CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, Fl, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, (21) RIE$ t : PCT/CN2014/071016 JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, (22) 0 9 YV : 2014 F 1 A 21 H (21.01.2014) LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, (25) $jfc: QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, (26) A'Wc: UZ, VC, VN, ZA, ZM, ZWO (30) 't*X(84)4H (t W '$ hftP I 201310331742.8 2013 4 8 A9 1 H (01.08.2013) CN liP): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, (71) iK *AJh *4PR4M k (HUAWEI TECHNO- RW, SD, SL, SZ, TZ, UG, ZM, ZW), rk A (AM, AZ, LOGIES CO., LTD.) [CN/CN]; 1:h N BY, KG, KZ, RU, TJ, TM), rtII (AL, AT, BE, BG, CH, MN I t E] H % t & , Guangdong 518129 CY, CZ, DE, DK, EE, ES, Fl, FR, GB, GR, HR, HU, IE, (CN). 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, (72) LUA: MI4* (YAN, Guoxiong); 1: W [[ GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)o tTIE EIx E f fFt&l, Guangdong 518129 (CN) o - R 'N V fr (NN M 21 *,(3)), ) ): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, (54) Title: OPTICAL FLOW TRACKING METHOD AND APPARATUS - (54) ~l# (57) Abstract: The present invention provides an optical tRMWVQ LHW BR~i t@*t& k} $, Afr4 flow tracking method and apparatus. The method comprises: >T generating a random structure according to an object to be ,FT thM tk+ i R r F M 101 tracked on an image, the random structure comprising at least two structure blocks having fixed relative locations, and each structure block comprising at least one feature point of the object to be tracked; tracking all structure blocks in the ran SLE Y T BE +tX1PbitK L I 102 dom structure by using an optical flow tracking algorithm, so -tiaW 5ff i,, Mb~t~iP~iDflt)LtMi as to obtain a location offset of the random structure; and es timating a target location of the object to be tracked accord ing to the location offset of the random structure. In the op R,*tical flow tracking method and apparatus provided in the em t103 bodiments of the present invention, the feature points of the -- object to be tracked on the image are obtained, the random I /Fig.1 structures are generated from the feature points, each random structure is tracked to obtain a location offset of the random 101 Generate a random structure according to an object to be structure, and accordingly, the location of the object to be tracked on an image, the random structure comprising at least tracked is estimated, tracking errors are reduced, and tracking two structure blocks having fixed relative locations, and each precision is effectively improved. structure block comprising at least one feature point of the object to be tracked (57) ME 102 Track all structure blocks in the random structure by [)q N using an optical flow tracking algorithm, so as to obtain a location offset of the random structure O 103 Estimate a target location of the object to be tracked according to the location offset of the random structure