	US 12,105,781 B2
	Authentication device and recognition method
Qihong Wang, Tokyo (JP); Masatomo Kurata, Kanagawa (JP); Takashi Ogata, Tokyo (JP); Hiroyuki Shigei, Tokyo (JP); Makoto Sato, Tokyo (JP); Yu Tanaka, Tokyo (JP); and Ayaka Nishi, Tokyo (JP)
Assigned to SONY GROUP CORPORATION, Tokyo (JP)
Appl. No. 17/310,553
Filed by SONY GROUP CORPORATION, Tokyo (JP)
PCT Filed Jan. 27, 2020, PCT No. PCT/JP2020/002709 § 371(c)(1), (2) Date Aug. 10, 2021, PCT Pub. No. WO2020/170719, PCT Pub. Date Aug. 27, 2020.
Claims priority of application No. 2019-027248 (JP), filed on Feb. 19, 2019; and application No. 2019-235076 (JP), filed on Dec. 25, 2019.
Prior Publication US 2022/0358197 A1, Nov. 10, 2022
Int. Cl. G06F 21/32 (2013.01); G06V 40/12 (2022.01); G06V 40/13 (2022.01); G06V 40/14 (2022.01); G06V 40/60 (2022.01)

CPC G06F 21/32 (2013.01) [G06V 40/13 (2022.01); G06V 40/1335 (2022.01); G06V 40/1347 (2022.01); G06V 40/14 (2022.01); G06V 40/67 (2022.01)]

19 Claims

1. An authentication device, comprising:

a feature quantity calculating unit configured to:

virtually divide a pattern present in a part of body of a user into a plurality of sections; and

calculate, in each section of the plurality of sections, a feature quantity representing distribution quantity of a plurality of feature points included in the pattern;

a deciding unit configured to, based on the calculated feature quantity in each section of the plurality of sections:

select, from among the plurality of sections, an authentication section that is used in authentication of the user; and

decide a position of the part of body used in the authentication of the user;

a guiding unit configured to guide, based on the decided position, the part of body to the position for purpose of the authentication of the user; and

an authenticating unit configured to perform the authentication of the user based on feature information of the pattern as obtained due to the guide.