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Face recognition method and system

A face recognition and recognition result technology, applied in the field of face recognition methods and systems, can solve the problems of high consumption of online communication, low efficiency of face recognition, poor applicability, etc.

Active Publication Date: 2015-08-05
GUANGZHOU UNIVERSITY +1
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  • Abstract
  • Description
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Problems solved by technology

[0005] Based on this, it is necessary to provide a face recognition method and system for the above-mentioned face recognition technology, which consumes a lot of online communication, resulting in low face recognition efficiency and poor applicability.

Method used

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  • Face recognition method and system
  • Face recognition method and system

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other Embodiment approach

[0097] In other implementation manners, before step S203, the sum of the squares of the projection coefficients of each database face on each eigenface can be encrypted by using the additive homomorphic encryption key to generate encrypted data corresponding to each database face. After step S203, the preset matching threshold and the inverse of the vector product of the average face and each eigenface are respectively encrypted by the additive homomorphic encryption key to generate a matching threshold ciphertext, each eigenface Corresponding average face projection to encrypted data.

[0098] For step S203, on the basis of the encryption principle of additive homomorphic encryption, according to the corresponding relationship between the projected face and the human face to be recognized, the average face and each eigenface (that is, the human face to be recognized and the The projection data of the difference of the average face in the feature dimension formed by each eigen...

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Abstract

The invention relates to a face recognition method and system. The method comprises receiving face encryption data, a full homomorphic encryption key, an additive homomorphic encryption key and a key ciphertext; then based on the principle of an additive homomorphic encryption algorithm and the principle of a full homomorphic encryption algorithm, converting average face projection encryption data corresponding to each eigen face, face encryption data and each eigen face into a projection face additive homomorphic encryption ciphertext; encrypting additive values of the encryption ciphertext respectively with a matching threshold ciphertext, the projection face additive homomorphic encryption ciphertext and an additive homomorphic encryption ciphertext of each distance square to generate a full homomorphic ciphertext collection; and based on a preset matching threshold, each distance square and preset matching rules among different face markers, converting the full homomorphic ciphertext collection into a full homomorphic encryption ciphertext containing recognition results of the face markers. The face recognition efficiency and suitable range are improved while leakage risks of face data of users can be reduced.

Description

technical field [0001] The invention relates to the technical field of image recognition, in particular to a face recognition method and system. Background technique [0002] Biometric technology has been greatly improved in the past few decades and has been applied in many fields. Face recognition is one of the most important biometrics. Due to its universality and simple operation, it has a wide range of applications, such as public place monitoring, airport entry and exit, or logging into social networking platforms. [0003] The widespread use of facial recognition also poses a risk of privacy breaches, as biometric information can be collected, misused in other documents, and tracked against the user's will. Unlike other types of data used for authentication, biometric data cannot be revoked and replaced with new values, so it needs to be strictly protected. Privacy of biometric data becomes very important if the biometric data is processed by an untrusted server. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06G06K9/00
CPCH04L63/0861G06V40/16
Inventor 唐春明张永强项灿刘镪
Owner GUANGZHOU UNIVERSITY
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