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1. WO2020087374 - METHOD AND APPARATUS FOR RECOGNIZING FINGERPRINT LOGO, AND ELECTRONIC DEVICE

Publication Number WO/2020/087374
Publication Date 07.05.2020
International Application No. PCT/CN2018/113128
International Filing Date 31.10.2018
IPC
G06K 9/00 2006.1
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
CPC
G06K 9/0004
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
00006Acquiring or recognising fingerprints or palmprints
00013Image acquisition
0004by using electro-optical elements or layers, e.g. electroluminescent sensing
G06K 9/00046
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
00006Acquiring or recognising fingerprints or palmprints
00013Image acquisition
00046by using geometrical optics, e.g. using prisms
G06K 9/00073
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
00006Acquiring or recognising fingerprints or palmprints
00067Preprocessing; Feature extraction (minutiae)
00073Extracting features related to minutiae and pores
G06K 9/00087
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
00006Acquiring or recognising fingerprints or palmprints
00087Matching; Classification
G06K 9/00919
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
00885Biometric patterns not provided for under G06K9/00006, G06K9/00154, G06K9/00335, G06K9/00362, G06K9/00597; Biometric specific functions not specific to the kind of biometric
00919Static means for assisting the user in correctly positioning the object of interest
Applicants
  • 深圳市汇顶科技股份有限公司 SHENZHEN GOODIX TECHNOLOGY CO., LTD. [CN]/[CN]
Inventors
  • 李勇 LI, Yong
Agents
  • 北京龙双利达知识产权代理有限公司 LONGSUN LEAD IP LTD.
Priority Data
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) METHOD AND APPARATUS FOR RECOGNIZING FINGERPRINT LOGO, AND ELECTRONIC DEVICE
(FR) PROCÉDÉ ET APPAREIL POUR RECONNAÎTRE UN LOGO D'EMPREINTES DIGITALES ET DISPOSITIF ÉLECTRONIQUE
(ZH) 辨识指纹Logo的方法、装置和电子设备
Abstract
(EN) Disclosed are a method and apparatus for recognizing a fingerprint logo, and an electronic device. Before beginning normal collection of a fingerprint image, whether a fingerprint logo exists currently can first be determined by collecting an image of a local area so as to solve the problem of a fingerprint logo in a fingerprint image, reducing the risk of false acceptance of a fingerprint and lowering an FRR at the same time. The method for recognizing a fingerprint logo comprises: before an optical sensor collects a fingerprint image, acquiring a first optical signal respectively collected by the optical sensor in at least one first area, wherein the first optical signal collected in the at least one first area forms a first image and the at least one first area corresponds to a partial area of a light-sensitive face of the optical sensor (S210); and according to the first optical signal collected in the at least one first area, recognizing whether a fingerprint logo leading a user to perform pressing exists in the first image (S220).
(FR) L'invention concerne un procédé et un appareil permettant de reconnaître un logo d'empreintes digitales et concerne un dispositif électronique. Avant le début d'une collecte normale d'une image d'empreintes digitales, le fait qu'un logo d'empreintes digitales existe actuellement peut d'abord être déterminé par la collecte d'une image d'une zone locale de façon à résoudre le problème d'un logo d'empreintes digitales dans une image d'empreintes digitales, à réduire le risque de fausse acceptation d'une empreinte digitale et à abaisser un FRR en même temps. Le procédé de reconnaissance d'un logo d'empreintes digitales comprend les étapes suivantes : avant qu'un capteur optique ne collecte une image d'empreintes digitales, acquérir un premier signal optique collecté respectivement par le capteur optique dans au moins une première zone, le premier signal optique collecté dans ladite première zone formant une première image et ladite première zone correspondant à une zone partielle d'une face sensible à la lumière du capteur optique (S210) ; et en fonction du premier signal optique collecté dans ladite première zone, reconnaître si un logo d'empreintes digitales amenant un utilisateur à effectuer une pression existe dans la première image (S220).
(ZH) 一种辨识指纹Logo的方法、装置和电子设备,在开始正常指纹图像采集之前,可以先通过采集局部区域的图像来判别当前是否存在指纹Logo,从而可以解决指纹图像中带有指纹Logo的问题,减少指纹认假的风险,同时降低FRR。该辨识指纹Logo的方法包括:在光学传感器采集指纹图像之前,获取所述光学传感器在至少一个第一区域内分别采集的第一光信号,所述至少一个第一区域内采集的第一光信号形成第一图像,所述至少一个第一区域对应所述光学传感器的感光面的部分区域(S210);根据所述至少一个第一区域内采集的第一光信号,辨识所述第一图像中是否存在用于引导用户进行按压的指纹Logo(S220)。
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