Title:
IMAGE PROCESSING METHOD AND APPARATUS AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/200533
Kind Code:
A1
Abstract:
The present application provides an image processing method and apparatus, a device, and a storage medium. The method comprises: determining a first linear relationship between the output pixel value of a pixel point and the intensity of incident light , and a second linear relationship between a test pixel value and the pattern depth; acquiring the fingerprint pixel value of a pixel point when a finger is pressing thereon, and obtaining a reference pixel value in combination with the second linear relationship, and calibrating the fingerprint pixel value according to the first linear relationship. The present application can improve the accuracy of fingerprint recognition.
Inventors:
CHENG LEIGANG (CN)
YE JINCHUN (CN)
YE JINCHUN (CN)
Application Number:
PCT/CN2018/083387
Publication Date:
October 24, 2019
Filing Date:
April 17, 2018
Export Citation:
Assignee:
SHENZHEN GOODIX TECH CO LTD (CN)
International Classes:
G06K9/00
Foreign References:
| CN107657240A | 2018-02-02 | |||
| CN107690653A | 2018-02-13 | |||
| CN107275374A | 2017-10-20 | |||
| CN107045628A | 2017-08-15 | |||
| US20140184541A1 | 2014-07-03 |
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
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