Patent SG-11201909671T-A (SG)
Title: Method of living body detection and terminal device
Inventor: ZHOU HAITAO
IPC: G06V10/28
Filed: 2018-06-13
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 24 January 2019 (24.01.2019) WIP0 I PCT omit III m HE loom °HIND oimIE (10) International Publication Number WO 2019/015415 Al (51) International Patent Classification: GOOK 9/00 (2006.01) (21) International Application Number: PCT/CN2018/091074 (22) International Filing Date: 13 June 2018 (13.06.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 201710582818.2 17 July 2017 (17.07.2017) CN (71) Applicant: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD. [CN/CN]; No. 18, Haibin Road, Wusha, Chang'an, Dongguan, Guang- dong 523860 (CN). (72) Inventors: ZHOU, Haitao; No. 18, Haibin Road, Wusha, Chang'an, Dongguan, Guangdong 523860 (CN). ZHOU, Yibao; No. 18, Haibin Road, Wusha, Chang'an, Dongguan, Guangdong 523860 (CN). TANG, Cheng; No. 18, Haib- in Road, Wusha, Chang'an, Dongguan, Guangdong 523860 (CN). ZHANG, Xueyong; No. 18, Haibin Road, Wusha, Chang'an, Dongguan, Guangdong 523860 (CN). (74) Agent: SCIHEAD IP LAW FIRM; Room 1508, Huihua Commercial & Trade Building, No. 80, XianLie Zhong Road,Yuexiu District, Guangzhou, Guangdong 510070 (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, JO, 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, (54) Title: METHOD OF LIVING BODY DETECTION AND TERMINAL DEVICE Obtaining a first image for a target object via a camera at a first focal length, 201 and obtaining a second image for the target object via the camera at a second focal length, where the first focal length is different from the second focal length. Determining a difference image of the first image and the second image. 1 / 202 Determining whether the target object is a living body according to the difference image. FIG.2 (57) : A method of living body detection and a terminal device are provided. The method includes the following operations. A first image for a target object is obtained via a camera at a first focal length, and a second image for the target object is obtained via the camera at a second focal length. A difference image of the first image and the second image is determined. Whether the target object is a living body is determined according to the difference image. [Continued on next page] WO 2019/015415 Al MIDEDIMOMMIDIROMOINIRDENHEOMMEMOIS 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))