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Biological recognition method and device

A biometric, to-be-identified technology, applied in character and pattern recognition, protocol authorization, data processing applications, etc., can solve problems such as difficult single-modal biometric identification technology identification technology performance requirements, and improve the success of identification. rate effect

Active Publication Date: 2019-04-12
STATE GRID CORP OF CHINA +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For some specific application scenarios of biometric identification, it is difficult to meet their performance requirements for identification technology by using single-modal biometric identification technology

Method used

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  • Biological recognition method and device
  • Biological recognition method and device

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Experimental program
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Embodiment 1

[0030] Based on the principles of the above invention, embodiments of the present invention provide a biometric identification method, such as figure 1 As shown, the method includes:

[0031] S101. Obtain n types of biometric features of a user to be identified. Among them, n≥2.

[0032] Specifically, in the present invention, the n types of biometric features may include: fingerprint features, iris features, facial features, palmprint features, voiceprint features, and any number of features that can be used to distinguish user identities. The present invention may not be limited to this.

[0033] S102. Acquire characteristic parameters of n types of biological characteristics of the user to be identified.

[0034] Specifically, in order to facilitate the subsequent model training, in the present invention, a specific algorithm can be used to convert the acquired n types of biological characteristics into a one-dimensional sequence of preset lengths, which can be used as c...

Embodiment 2

[0078] An embodiment of the present invention provides a biometric identification device, and the biometric identification device is used to execute the above biometric identification method. Such as Figure 4 As shown in , it is a schematic diagram of a possible structure of the biometric identification device provided by the embodiment of the present invention. Specifically, the biometric identification device 20 includes: an acquisition unit 201 , a fusion feature calculation unit 202 , an integrated feature calculation unit 203 , and an identification unit 204 . in:

[0079] An acquisition unit 201, configured to acquire characteristic parameters of n biological characteristics of the user to be identified, where n≥2;

[0080] The fusion feature calculation unit 202 is used to use the long short-term memory neural network LSTM model to fuse the feature parameters of the n biological features respectively to generate high-order feature parameters corresponding to the n bi...

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Abstract

The embodiment of the invention provides a biological recognition method and device, and relates to the field of artificial intelligence. According to the embodiment of the invention, the identification success rate when the user identity is identified by utilizing various biological characteristics can be improved. The method comprises the following steps: acquiring characteristic parameters of nbiological characteristics of a to-be-identified user, wherein n is greater than or equal to 2; Utilizing an LSTM (Long Short Term Memory) model to fuse the characteristic parameters of the n biological characteristics respectively to generate high-order characteristic parameters corresponding to the n biological characteristics respectively; calculating comprehensive characteristic parameters ofthe n biological characteristics by utilizing an attention mechanism according to the high-order characteristic parameters corresponding to the n biological characteristics; and according to the comprehensive characteristic parameters of the n biological characteristics, identifying the identity of the to-be-identified user. The method is applied to identity recognition.

Description

technical field [0001] The invention relates to the field of artificial intelligence, in particular to a biometric identification method and device. Background technique [0002] At present, with the continuous development of information technology, biometric identification technology has been widely used in financial payment, personal identity authentication and other fields. For some specific application scenarios of biometric identification, it is difficult to meet their performance requirements for identification technology by using single-modal biometric identification technology. Therefore, it has become the focus of attention in this field to use multimodal biometric features for biometric identification to improve identification accuracy. Contents of the invention [0003] The invention provides a biometric identification method and device, which can improve the identification success rate when using multiple biometric features to identify user identities. [000...

Claims

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Application Information

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IPC IPC(8): G06K9/62G06Q20/40
CPCG06Q20/40145G06F18/253G06F18/214
Inventor 王波王栋徐彧玄佳兴贺金红杨珂韩庆芝申海娟石欣张宏廷
Owner STATE GRID CORP OF CHINA
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