Patent SG-11201910034R-A (SG)
Title: Flight parameter measuring apparatus and flight parameter measuring method
Inventor: KAWAMOTO HIDEAKI
IPC: G06T7/254
Filed: 2018-06-01
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 06 December 2018 (06.12.2018) WIPO I PCT mu °million ono mum HE olomomilmo Hs (10) International Publication Number WO 2018/221746 Al (51) International Patent Classification: G01B 11/00 (2006.01) GO6T 7/254 (2017.01) GO1P 3/36 (2006.01) (21) International Application Number: PCT/JP2018/021293 (22) International Filing Date: 01 June 2018 (01.06.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 2017-109620 02 June 2017 (02.06.2017) JP (71) Applicant: GPRO CO., LTD. [JP/JP]; 5-14-12 Minamit- sukaguchi-cho,Amagasaki-shi Hyogo, 6610012 (JP). (72) Inventors: KAWAMOTO Hideaki; c/o GPRO Co., Ltd. ,5 -14 -12 Minamitsukaguchi-cho,Amagasaki-shi Hyo- go, 6610012 (JP). Do Viet Manh; c/o MQ INFOR- MATION AND COMMUNICATION TECHNOLOGY SOLUTIONS JOINT STOCK COMPANY, So 6, Ngo 50, Linh Nam Street, Mai Dong, Hoang Mai, Hanoi, 100000 (VN). Luong Hong Quan; c/o MQ INFOR- MATION AND COMMUNICATION TECHNOLOGY SOLUTIONS JOINT STOCK COMPANY, So 6, Ngo 50, Linh Nam Street, Mai Dong, Hoang Mai, Hanoi, 100000 (VN)• (74) Agent: FUKUSHIMA Hajime; 21-2-701, Taruyamachi, Akashi-shi, Hyogo, 6730898 (JP). (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, (54) Title: FLIGHT PARAMETER MEASURING APPARATUS AND FLIGHT PARAMETER MEASURING METHOD 11 (57) : The image capturing part 201 captures a ball in flight with a camera continuously. The image corresponding part 203 generates a first registered ball image obtained by making a size of a first ball image correspond to a size of a second ball image. The 3D model constructing part 204 constructs a 3D model of the first registered ball image obtained by converting a camera coordinate system of the generated first registered ball image into a world coordinate system. The virtual rotating part 205 rotates virtually the constructed 3D model of the first registered ball image in the world coordinate system by using an initial rotation parameter and rotation matrix information. The registered image generating part 206 generates a second registered ball image in the camera coordinate system obtained by converting a world coordinate system of a visible surface, captured from the camera in the 3D model of the first registered ball image after the rotation, into a camera coordinate system. The difference calculating part 207 extracts a second compared ball image, corresponding to the second registered ball image, in the second ball image and calculates a difference between the second N registered ball image and the second compared ball image. The rotation parameter determining part 208 repeats the virtual rotation of the 3D model, the generation of the second registered ball image and the calculation of the difference by changing the initial rotation parameter, and determines a rotation parameter to minimize the difference as a real rotation parameter of the ball. 00 O C [Continued on next page] WO 2018/221746 Al 0111 DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, 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))