Living fingerprint identification method based on multi-quadrant coding
A technology of living fingerprints and identification methods, which is applied in image coding, detection of living finger shapes, character and pattern recognition, etc., and can solve the problems of not being able to distinguish whether fingerprints come from real human bodies, deceiving fingerprint recognition systems, etc.
Inactive Publication Date: 2016-04-27
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF7 Cites 4 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, most fingerprint recognition systems cannot distinguish whether the scanned fingerprint is from a real human body, and fake fingerprints using rubber, silicone grease, or even printed on paper can successfully deceive fingerprint recognition systems
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0043] The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0044] In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the meaning of the present invention. By analogy, the present invention is therefore not limited to the specific examples disclosed below.
[0045] The invention di...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a living fingerprint identification method based on multi-quadrant coding and relates to the technical field of a fingerprint identification method. The method comprises the following steps: collecting enough quantity of true and false fingerprint images; randomly sampling a large number of image blocks of different sizes on the collected fingerprint images; learning each filter through an orthogonal cluster maintenance learning algorithm to maximize average angle of segmentation hyperplanes and image block data and obtaining normal vector of the segmentation hyperplane under each dimension; obtaining fingerprint image texture features through multi-quadrant coding; and carrying out further dimensionality reduction on the obtained features, carrying out parameter cross validation and SVM classifier training, and selecting optimum parameters to carry out training and obtaining a final classifier. The method adopts the multi-quadrant coding technology, can distinguish small difference between living fingerprints and false fingerprints in texture features and can distinguish true and false fingerprints without improvement of a hardware system, thereby improving safety of a fingerprint recognition system.
Description
technical field [0001] The invention relates to the technical field of fingerprint identification methods, in particular to a living fingerprint identification method based on multi-quadrant coding. Background technique [0002] Fingerprint recognition mainly identifies the operator or the operator based on information such as the lines and details of human fingerprints. Nowadays, fingerprint recognition technology is very mature and is widely used in fields such as identity authentication and information encryption. However, most fingerprint identification systems cannot distinguish whether the scanned fingerprint is from a real human body, and fake fingerprints using rubber, silicone grease or even printed on paper can successfully deceive the fingerprint identification system. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a living fingerprint identification method based on multi-quadrant coding. The method d...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG06T9/00G06V40/1347G06V40/1382G06V10/507
Inventor 程建王峰刘海军邹瑞雪刘瑞
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA