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1. (WO2017067256) METHOD AND DEVICE FOR ACQUIRING FINGERPRINT IMAGE TO BE RECOGNIZED AND MOBILE TERMINAL

Pub. No.:    WO/2017/067256    International Application No.:    PCT/CN2016/091800
Publication Date: Fri Apr 28 01:59:59 CEST 2017 International Filing Date: Wed Jul 27 01:59:59 CEST 2016
IPC: G06K 9/00
Applicants: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
广东欧珀移动通信有限公司
Inventors: ZHANG, Qiang
张强
WANG, Lizhong
王立中
ZHOU, Haitao
周海涛
JIANG, Kui
蒋奎
HE, Wei
贺威
Title: METHOD AND DEVICE FOR ACQUIRING FINGERPRINT IMAGE TO BE RECOGNIZED AND MOBILE TERMINAL
Abstract:
A method for acquiring a fingerprint image to be recognized, comprising: when a fingerprint recognition event is detected, acquiring a fingerprint image via a fingerprint sensor; determining whether or not the clarity of the fingerprint image reaches a preset standard; if not, then controlling the fingerprint sensor to raise the temperature thereof, continuing to acquire fingerprint images via the fingerprint sensor, and using a fingerprint image of which the clarity reaches the preset standard as a fingerprint image to be recognized. In addition, also provided are a corresponding device for acquiring the fingerprint image to be recognized and a mobile terminal.