Fingerprint sub-image capture

The present disclosure relates to a method of a fingerprint sensing system (110) disposed in a smart card (100) and a fingerprint sensing system performing the method, the fingerprint sensing system is configured to acquire fingerprint data of a user with a fingerprint sensor (102) for biometric aut...

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Bibliographic Details
Main Authors SODERBERG PER, NYGREN DANIEL
Format Patent
LanguageChinese
English
Published 18.02.2022
Subjects
CALCULATING
COMPUTING
COUNTING
HANDLING RECORD CARRIERS
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
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Summary:The present disclosure relates to a method of a fingerprint sensing system (110) disposed in a smart card (100) and a fingerprint sensing system performing the method, the fingerprint sensing system is configured to acquire fingerprint data of a user with a fingerprint sensor (102) for biometric authentication. In one aspect, a method of a fingerprint sensing system (110) disposed in a smart card (100) is provided, the fingerprint sensing system (110) configured to acquire fingerprint data of a user with a fingerprint sensor (102) for biometric authentication. The method comprises: detecting (S501) a finger of a user contacting a sensing area of the fingerprint sensor (102); initializing (S502) the fingerprint sensor (102) with a predetermined sensor setting; acquiring (S503) a calibration sub-image for a finger detected to be in contact with a sensing area of the fingerprint sensor (102), the calibration sub-image being limited in size by a sub-area of the sensing area; determining (S504) whether a quality c
Bibliography:Application Number: CN202180004168