Title:
FINGER VEIN MACHINE LEARNING RECOGNITION METHOD AND APPARATUS BASED ON TERRAIN CONCAVE AND CONVEX CHJARACTERISTIC
Document Type and Number:
WIPO Patent Application WO/2021/227331
Kind Code:
A1
Abstract:
A finger vein machine learning recognition method and apparatus based on a terrain concave and convex characteristic. The method comprises: performing size normalization on a registration finger vein image and a verification finger vein image; performing image enhancement on the registration finger vein image and verification finger vein image; acquiring a terrain concave and convex characteristic from the registration finger vein image and verification finger vein image on the basis of a digital elevation model, and extracting a registration feature and a verification feature; performing translation and rotation calibration correction on the registration feature and verification feature, and performing a sliding window similarity calculation on an overlapped area of the calibration corrected vein feature; and optimizing a feature extraction technical parameter and a recognition technical parameter of the finger vein on the basis of a calibration correction parameter and a sliding window similarity parameter. The apparatus comprises a normalization processing module, an image enhancement module, a feature extraction module, a parameter calculation module, and an optimization module. The described method and apparatus improve finger vein recognition technical capability and the adaptation capability for different image qualities.
Inventors:
ZHANG XUAN (CN)
ZHAO GUODONG (CN)
XIN CHUANXIAN (CN)
LI XUESHUANG (CN)
ZHAO GUODONG (CN)
XIN CHUANXIAN (CN)
LI XUESHUANG (CN)
Application Number:
PCT/CN2020/116685
Publication Date:
November 18, 2021
Filing Date:
September 22, 2020
Export Citation:
Assignee:
TOP GLORY TECH INCORPORATED CO LTD (CN)
International Classes:
G06K9/00
Foreign References:
| CN111639559A | 2020-09-08 | |||
| CN106611168A | 2017-05-03 | |||
| CN107832684A | 2018-03-23 | |||
| CN103310196A | 2013-09-18 | |||
| US20180357499A1 | 2018-12-13 |
Attorney, Agent or Firm:
HANGZHOU JUNDU PATENT AGENCY (SPECIAL GENERAL PARTNERSHIP) (CN)
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