Method and system for authenticating shielded face

An authentication method and face technology, which are applied in the field of face occlusion authentication methods and systems, and can solve the problems affecting the accuracy of the face authentication system, the inability of the system to extract face information, and the incompleteness of face data.

Inactive Publication Date: 2013-01-02
SUZHOU UNIV
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  • Claims
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AI Technical Summary

Problems solved by technology

[0014] (2) Face occlusion problems, such as hair, accessories, beards, etc.
These interference factors make the face data acquired by the imaging device incomplete, and the system cannot extract complete and effective face information, which affects the detection and recognition accuracy of the entire face authentication system.

Method used

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  • Method and system for authenticating shielded face
  • Method and system for authenticating shielded face
  • Method and system for authenticating shielded face

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Embodiment Construction

[0095] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0096] ginseng figure 1 As shown, a kind of blocking face authentication method of the present invention comprises the following steps:

[0097] S1, collecting face video images;

[0098] S2. Preprocessing the collected face video images, the preprocessing includes: illumination preprocessing, noise filtering processing, geometric norma...

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Abstract

The invention discloses a method and a system for authenticating a shielded face, wherein the method comprises the following steps: S1) collecting a face video image; S2) preprocessing the collected face video image; S3) performing detection calculation on the shielded face, evaluating a position of a face image by utilizing a three-frame difference method according to motion information of a video sequence, and further confirming the position of the face according to an Adaboost algorithm; and S4) performing authenticating calculation on the shielded face, dividing a face sample into a plurality of sub-blocks, performing shielding distinguishment on the sub-blocks of the face by adopting a SVM(Support Vector Machine) binary algorithm combined with a supervising 1-NN k-Nearest neighbor method, if the sub-blocks are shielded, directly abandoning the sub-blocks, and if the sub-blocks are not shielded, extracting a corresponding LBP (Length Between Perpendiculars) textural feature vector for performing weighting identification, and then using a classifier based on a rectangular projection method to reduce feature matching times. According to the method for authenticating the shielded face, the detection rate and the detection speed for the local shielded face are effectively increased.

Description

technical field [0001] The present application relates to the technical field of image processing, and in particular to a method and system for occluded face authentication. Background technique [0002] With the continuous development of science and technology and the rapid advancement of the IT industry, the requirements for automatic identification in various fields of society have become increasingly prominent. How to quickly and effectively identify the identity of the target person has become a hot issue that needs to be solved urgently. At present, the identity verification of the target person still mainly relies on traditional identity verification methods such as citizen ID cards, work permits, and personal passwords. These methods have disadvantages such as troublesome carrying, easy loss, and easy forgery. With the development of photoelectric technology, microcomputer technology, image processing technology and pattern recognition technology, biometric recogniti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/62
Inventor 徐汀荣
Owner SUZHOU UNIV
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