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Identity authentication method and apparatus

A technology of identity authentication and sequence, applied in the field of pattern recognition and information security, can solve the problem of low accuracy of identity authentication, achieve the effect of eliminating noise interference and improving accuracy

Inactive Publication Date: 2015-11-25
CHINA MOBILE GRP HENAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In view of this, the embodiment of the present invention provides an identity authentication method and device, which is used to solve the problem of low identity authentication accuracy caused by using the user operation button to start recording the test sample sequence in the prior art

Method used

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  • Identity authentication method and apparatus

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Experimental program
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Embodiment 1

[0039] Such as figure 1 As shown, it is a schematic flowchart of the identity authentication method provided by Embodiment 1 of the present invention, which specifically includes the following steps:

[0040] Step 101, using the acceleration data sequence collected during the execution of the authentication gesture as a test sample sequence;

[0041] When the gesture is executed, the acceleration sensor collects the acceleration data when the user holds the mobile phone and makes an identity authentication gesture. The collected acceleration data corresponds to the direction of the coordinate axis used, which can be x, y, and z on the three-dimensional Cartesian coordinate system. The acceleration data sequence in one direction may also be the acceleration data sequence in any two directions, or it may be the acceleration data sequence in one direction.

[0042] Step 102, preprocessing the test sample sequence.

[0043] After the test sample sequence is preprocessed in step ...

Embodiment 2

[0057] Embodiment 2 of the present invention provides an identity authentication method, which specifically includes the following steps:

[0058] The first step is to collect the acceleration data sequence when the authentication gesture is executed, and use it as a test sample sequence.

[0059] In the second embodiment of the present invention, it is required that the user's mobile phone should be in a stable state before and after the user's gesture action begins, and the acceleration sensor built in the device (such as a mobile phone) is used to collect the acceleration data when the user holds the mobile phone to make an identity authentication gesture, and records the entire gesture action. The three-axis (X, Y, Z axis) acceleration data of the three-dimensional Cartesian coordinate system caused.

[0060] Among them, the three-axis acceleration data sequence A of the gesture k Described in mathematical language as: in Indicate the acceleration data values ​​of the...

Embodiment 3

[0118] Based on the same inventive concept as that of Embodiment 1 and Embodiment 2, Embodiment 3 of the present invention provides an identity authentication device, and its structural diagram is as follows figure 2 As shown, it includes: an acquisition unit 201, a preprocessing unit 202, a segmentation unit 203, a removal unit 204, a quantization unit 205 and an authentication unit 206, wherein:

[0119] The acquisition unit 201 is configured to use the acceleration data sequence collected when the authentication gesture is executed as a test sample sequence;

[0120] A preprocessing unit 202, configured to preprocess the test sample sequence;

[0121] Segmentation unit 203, configured to segment the preprocessed test sample sequence using a time series linear segmentation algorithm;

[0122] The removal unit 204 is configured to, for each acceleration data subsequence obtained after segmentation, when the average value of the acceleration data subsequence is less than a s...

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Abstract

The invention discloses an identity authentication method and apparatus. The method comprises: employing an acceleration data sequence collected in authentication gesture implementation as a test sample sequence; pre-treating the test sample sequence; sectionalizing the pretreated test sample sequence; for each acceleration data sub-sequence after sectionalization, determining that the acceleration data sub-sequence represents an empty gesture when the mean value of the acceleration data sub-sequence is smaller than a preset threshold value, and removing all acceleration data sequence points included by the acceleration data sub-sequence from the test sample sequence; quantifying the difference between a reference sample sequence and the test sample sequence having empty gestures removed; determining authentication to be successful when the difference is no greater than a preset value; and determining the authentication to be failed when the difference is greater than a preset value. The method and apparatus can automatically determine the acceleration data sequence representing effective gestures, avoid the noise interference caused by operating buttons, and thereby improve identity authentication accuracy.

Description

technical field [0001] The invention relates to the technical fields of pattern recognition and information security, in particular to an identity authentication method and device. Background technique [0002] Identity authentication is the process by which the system confirms whether the operator's real identity matches his claimed identity. With the popularity of electronic devices today, user identity authentication on electronic devices has also become an important part of information security. [0003] As a kind of identity authentication, dynamic gestures have received high attention due to their low dependence on the external environment (such as light, sound, background) and low requirements on the hardware of electronic devices (such as mobile phones). [0004] At present, the method for performing dynamic gesture identity authentication based on a built-in acceleration sensor in mobile phone identity authentication includes the following steps: [0005] The first...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/725G06F21/32G06K9/00H04M1/72454H04M1/72463
Inventor 苗敏敏周治平孙子文范金桥贺新初朱韧李炎姜峰
Owner CHINA MOBILE GRP HENAN CO LTD
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