Method for selecting and rapidly comparing robust features of iris images

An iris image and robust feature technology, applied in the field of robust feature selection and fast comparison of iris images, can solve the problems of slow feature template matching and unsuitable application.

Active Publication Date: 2009-09-23
BEIJING IRISKING
View PDF2 Cites 34 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Finally, when comparing feature templates, even for two obviously mismatched feature templates, they all need to calculate all the feat

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
  • Method for selecting and rapidly comparing robust features of iris images
  • Method for selecting and rapidly comparing robust features of iris images
  • Method for selecting and rapidly comparing robust features of iris images

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0072] The technical problems involved in the technical solution of the present invention will be described below in conjunction with the accompanying drawings. It should be pointed out that the described embodiments are only intended to facilitate the understanding of the present invention, rather than limiting it in any way.

[0073] The iris is a ring-shaped area between the black pupil and the white sclera in the human eye, showing rich textures. Iris recognition refers to identifying people's identities based on the different iris textures of each person. A large number of medical and computer science studies have shown that the distribution of iris texture has many excellent properties, such as:

[0074] 1. Randomness and uniqueness: the iris texture of different eyes is highly random and different;

[0075] 2. Self-similarity in angular direction: The iris texture distribution in different angular directions of the same iris image has a certain degree of similarity, as...

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 method for selecting and rapidly comparing robust features of iris images. The method comprises: S1, adopting regional multipole sequencing measurement features to express iris texture; S2, selecting and fusing iris features by taking similarity as guidance; and S3, rapidly comparing iris characteristic templates on the basis of a hierarchical classifier. The method uses a feature-selecting method taking similarity as the guidance to select regional measurement features and construct a combined classifier, and adopts a hierarchical classifier structure to optimize and combine the obtained combined classifier again so as to rapidly compare the iris characteristic templates. The method automatically learns the obtained iris regional sequencing measurement features, and has the advantages of greatly raising the speed of comparing the iris characteristic templates and effectively solving the problem of applying iris recognition to large-scale databases, along with good robustness and high recognition precision. The method can be widely used in a large number of application systems using iris for identity recognition and security protection.

Description

technical field [0001] The invention relates to the technical fields of digital image processing, pattern recognition and statistical learning, in particular to a method for robust feature selection and fast comparison of iris images. Background technique [0002] The iris is the richly textured ring-shaped area of ​​the human eye between the black pupil and the white sclera. A large number of medical and computer science studies have shown that the iris texture of different eyes (including the left and right eyes of humans and the eyes of twins) is different, and it has been stable since 8 months after the embryo is formed, so the iris has a high degree of uniqueness. , The advantages of strong stability. In addition, the iris is an externally visible internal organ, which has the advantage of being noninvasive. These advantages make the iris particularly suitable for identification and identification of people, and have been successfully applied to identification in airp...

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): G06K9/00G06K9/62G07C9/00A61B3/12G06F21/00G06F21/32
Inventor 谭铁牛孙哲南何召锋邱显超
Owner BEIJING IRISKING
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