Patent CA-3080002-A1 (CA)
Inventor: WENDEL ANDREAS
IPC: G06K9/46
Filed: 2018-09-19
Abstract: (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY  (PCT) (19) World Intellectual Property Organization International Bureau (10) International Publication Number (43) International Publication Date                   WO 2019/067283 Al 04 April 2019 (04.04.2019)        WIPO I PCT (51) International Patent Classification:                                           AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, GO6T 7/80 (201'7.01)     GOOK 9/46 (2006.01) 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, (21) International Application Number: HR, HU, ED, EL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, (22) International Filing Date:                                                     MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, 19 September 2018 (19.09.2018)           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, (25) Filing Language:                     English TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (26) Publication Language:                English (84) Designated States (unless otherwise indicated, for every (30) Priority Data:                                                                 kind of regional protection available): ARIPO (BW, GH, 15/720,9'79                               29 September 201'7 (29.09.201'7) US       GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, (71) Applicant: WAYMO LLC [US/US]; 1600 Amphitheatre TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, Parkway, Mountain View, CA 94043 (US).                                              EE, ES, FI, FR, GB, GR, HR, HU, EE, IS, IT, LT, LU, LV, (72) Inventors: WENDEL, Andreas; 1600 Amphitheatre Park-MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, way, Mountain View, CA 94043 (US). GRABE, Volker;                                   TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, 1600 Amphitheatre Parkway, Mountain View, CA 94043                  KM, ML, MR, NE, SN, TD, TG). (US). DITTMER, Jeremy; 1600 Amphitheatre Parkway, Mountain View, CA 94043 (US). MORRISS, Zachary; Published: 1600 Amphitheatre Parkway, Mountain View, CA 94043 ¨ with international search report (Art. 21(3)) (US).                                                                               ¨ before the expiration of the time limit for amending the claims and to be republished in the event of receipt of = (74) Agent: VELZEN, Andrew, H.; McDonnell Boehnen amendments (Rule 48.2(h)) bert &, Berghoff LLP, 300 South Wacker Drive, Chicago, IL 60606 (US). = (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, (54) Title: TARGET, METHOD, AND SYSTEM FOR CAMERA CALEBRATION 700 m __________________________________________________________________  702 Record a calibration image of a target using a camera __________________________________________________________________  704 Determine locations and identifications of one or more fiducial markers in the calibration image __________________________________________________________________  706 1-1                        Based on the determined locations and identifications, calibrate the camera GC FIG. 7 c, (57) Abstract: The present disclosure relates to a target, a method, and a system for calibrating: a camera. One example embodiment includes a target. The target includes a first pattern of fiducial markers.  The target also includes a second pattern of -fiducial markers.  r..1 The first pattern of fiducial markers is a scaled version of the second pattern of fiducial markers, such that a calibration image captured 0.õ,, of the target simulates multiple images of a single pattern captured at multiple calibration perspectives.