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|1. (WO2017067256) METHOD AND DEVICE FOR ACQUIRING FINGERPRINT IMAGE TO BE RECOGNIZED AND MOBILE TERMINAL|
|Applicants:||GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
|Title:||METHOD AND DEVICE FOR ACQUIRING FINGERPRINT IMAGE TO BE RECOGNIZED AND MOBILE TERMINAL|
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.