Fingerprint identification method and device

A fingerprint identification and identification technology, which is applied in character and pattern recognition, instruments, calculations, etc., can solve the problems of low success rate of fingerprint identification, comparison failure, and inability to identify, so as to improve experience, reduce false recognition rate, and improve The effect on success rate

Active Publication Date: 2016-03-30
BYD SEMICON CO LTD
View PDF4 Cites 33 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, some people's fingerprints have very few feature points, and even if the collection area is large enough, it is difficult to detect many feature points.
[0004] In these cases, due to too little feature point information, it is very eas

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fingerprint identification method and device
  • Fingerprint identification method and device
  • Fingerprint identification method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0021] The fingerprint identification method and device according to the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0022] figure 1 It is a flowchart of a fingerprint identification method according to an embodiment of the present invention.

[0023] Such as figure 1 As shown, the fingerprint recognition method according to the embodiment of the present invention includes the following steps.

[0024] S101. Acquire an image of a fingerprint to be identified, and ...

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

No PUM Login to view more

Abstract

The invention discloses a fingerprint identification method and device. The fingerprint identification method comprises the steps of: obtaining a fingerprint image to be identified, and extracting first characteristic points in the fingerprint image to be identified; if the number of the first characteristic points in the fingerprint image to be identified is smaller than a preset threshold, selecting a fingerprint template image according to the first characteristic points in the fingerprint image to be identified, and obtaining second characteristic points, matched with the first characteristic points, in the fingerprint template image; according to the first characteristic points and the second characteristic points, superposing the fingerprint image to be identified with the fingerprint template image, generating a superposed image, and obtaining effective superposing areas between the fingerprint image to be identified and the fingerprint template image; and according to the effective superposing areas, judging whether the fingerprint image to be identified is matched with the fingerprint template image, and carrying out fingerprint identification according to the matching result. By adopting the fingerprint identification method provided by the invention, fingerprint identification under the condition that the characteristic points are fewer is realized, the success rate of the fingerprint identification is improved, and the false identification rate is reduced.

Description

technical field [0001] The invention relates to the technical field of fingerprint identification, in particular to a fingerprint identification method and device. Background technique [0002] With the development of fingerprint detection and identification technology, fingerprint identification has been more and more widely used in various fields. For example, fingerprint unlocking functions in mobile terminals such as mobile phones and computers. Among the many fingerprint detection and identification methods, the capacitive chip detection and identification method has quickly broken through in the mobile phone and tablet market due to its advantages such as small size and low power consumption, and has become the first choice. [0003] At present, most fingerprint recognition algorithms are based on feature point algorithms. Among them, the feature points refer to the bifurcation points and endpoints of the ridge lines in the fingerprint. When collecting fingerprints,...

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
no application Login to view more
IPC IPC(8): G06K9/00G06K9/64
CPCG06V40/1359G06V40/1376G06F18/00G06T3/4038
Inventor 李振刚徐坤平杨云
Owner BYD SEMICON CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap