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Biometric template similarity based on feature locations

A technology for determining location and consistency, applied in character and pattern recognition, instruments, computer parts, etc., can solve problems such as the complex combination of auxiliary data schemes and feature location schemes

Active Publication Date: 2008-12-10
KONINKLIJKE PHILIPS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] A remaining problem in the prior art is that the combination of auxiliary data schemes and feature location schemes is complex

Method used

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  • Biometric template similarity based on feature locations
  • Biometric template similarity based on feature locations
  • Biometric template similarity based on feature locations

Examples

Experimental program
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Embodiment Construction

[0056] figure 1 An existing system that uses biometric data related to individuals to verify personal identity (ie, personal identity verification / recognition) is shown. In this system, the present invention can be beneficially adopted. The system includes a user device 101 arranged with a sensor 102 for deriving a first biometric template X from the structure of a specific physical feature 103 (in this case, the iris) of the individual T , Or even derive the first biometric template from a combination of physical features. The user device adopts the auxiliary data scheme (HDS) in the verification process, and the first biometric template X T The registration data S and the auxiliary data W are exported to generate a feature position set X. The user device must be safe, reliable, tamper-proof, and therefore trusted by the individual, thereby providing the secret of personal biometric data. The auxiliary data W is typically calculated in the user device 101 as follows: S=G(X F , W...

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Abstract

The present invention relates to a method and a system of verifying the identity of an individual by employing biometric data associated with the individual while providing privacy of said biometric data. A basic idea of the present invention is to represent a biometric data set XFP with a feature vector. A number of sets XFP1, XFP2,..., XFPm of biometric data and hence a corresponding number of feature vectors is derived, and quantized feature vectors X1, X2,..., Xm are created. Then, noise robustness of quantized feature components is tested. A set of reliable quantized feature components is formed, from which a subset of reliable quantized feature components is randomly selected. A first set W1 of helper data is created from the subset of selected reliable quantized components. The helper data W1 is subsequently used in a verification phase to verify the identity of the individual.

Description

Technical field [0001] The present invention relates to a method and system for determining consistency between sets of locations. Background technique [0002] The identification of physical objects can be used in many applications, such as conditional access to secure buildings or conditional access to digital data (such as data stored in a computer or removable storage medium), or for identification purposes (such as for specific Act and charge an identified individual). [0003] The use of biometrics for identification and / or authentication purposes is increasingly seen as a better alternative to traditional identification methods such as passwords and personal identification codes. The number of systems that require identification in the form of passwords / personal identification codes is increasing, and as a result, the number of passwords / personal identification codes that users of the system must remember is also increasing. A further result is that since it is difficult t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00
Inventor T·A·M·克维纳阿A·H·M·阿克曼斯
Owner KONINKLIJKE PHILIPS NV
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