The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 31, 2024
Filed:
Nov. 10, 2021
Guangdong Oppo Mobile Telecommunications Corp., Ltd., Guangdong, CN;
Wenxi Zhan, Guangdong, CN;
Biao Chen, Guangdong, CN;
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Guangdong, CN;
Abstract
A calibration method, an electronic device, and a non-transitory computer-readable storage medium are provided. The calibration method is applicable to an electronic device including a fingerprint sensor. The calibration method includes the following. Fingerprint collection is performed with the fingerprint sensor to obtain a first fingerprint image. A first numerical value is determined according to the first fingerprint image, a first calibration image, and a second calibration image, where the first numerical value is indicative of a change in brightness of a light source for the fingerprint collection, the first calibration image is an image obtained by performing image collection on a bright surface of a calibration box, and the second calibration image is an image obtained by performing image collection on a dark surface of the calibration box. The first fingerprint image is calibrated according to the first numerical value to obtain a second fingerprint image.