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Fingerprint data acquisition method and apparatus and fingerprint identification method and apparatus

A technology of fingerprint data and fingerprint recognition, applied in three-dimensional object recognition, character and pattern recognition, instruments, etc., can solve the problems of fingerprint data legacy, aggravated fingerprint data risk, and low fingerprint data security

Active Publication Date: 2015-11-11
INSPUR FINANCIAL INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these fingerprint data will be left in the daily life environment unconsciously by the user, and it is easy to be copied
In addition, with the advancement of technology, the method of copying user fingerprint data through non-contact methods such as high-definition photos has exacerbated the risk of fingerprint data in two-dimensional image mode
[0004] It can be seen from the above description that in the prior art methods for acquiring fingerprint data, the fingerprint data in the two-dimensional image mode is acquired, and the security of the fingerprint data obtained by this method is low

Method used

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  • Fingerprint data acquisition method and apparatus and fingerprint identification method and apparatus
  • Fingerprint data acquisition method and apparatus and fingerprint identification method and apparatus
  • Fingerprint data acquisition method and apparatus and fingerprint identification method and apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] Such as figure 1 As shown, the embodiment of the present invention provides a method for obtaining fingerprint data, the method may include the following steps:

[0077] S1: collecting at least two fingerprint images of the current finger;

[0078] S2: Determine the variation curves of the edges of the at least two fingerprint images in space;

[0079] S3: Determine the spatial trajectory of the fingerprint lines according to the fingerprint image and the variation curve;

[0080] S4: Construct a three-dimensional fingerprint corresponding to the current finger according to the fingerprint image and the spatial trajectory.

[0081] A method for obtaining fingerprint data provided by an embodiment of the present invention includes collecting at least two fingerprint images, and the edges of different fingerprint images will change with different collection times, forming a change curve in space, and in each fingerprint image There are fingerprint lines in the world, a...

Embodiment 2

[0140] see Image 6 , the embodiment of the present invention provides a fingerprint recognition method, including:

[0141] Step 601: According to the method for acquiring fingerprint data described in any one of Embodiment 1, pre-construct the three-dimensional fingerprint corresponding to the finger to be matched;

[0142] Step 602: Determine the first identification code of the three-dimensional fingerprint corresponding to the finger to be matched;

[0143] Also includes:

[0144] Step 603: According to any method for acquiring fingerprint data in Embodiment 1, construct a three-dimensional fingerprint corresponding to the finger to be identified;

[0145] Step 604: Determine the second identification code of the three-dimensional fingerprint corresponding to the finger to be identified;

[0146] Step 605: Judging whether the first identification code matches the second identification code, if they match, the fingerprint identification is successful, otherwise, the fin...

Embodiment 3

[0164] see Figure 7 , the embodiment of the present invention provides a device for acquiring fingerprint data, including:

[0165] An acquisition unit 701, configured to acquire at least two fingerprint images of the current finger;

[0166] The first determination unit 702 is configured to determine the variation curves of the edges of the at least two fingerprint images in space;

[0167] The second determination unit 703 is configured to determine the spatial trajectory of fingerprint lines according to the fingerprint image and the change curve;

[0168] The construction unit 704 is configured to construct a three-dimensional fingerprint corresponding to the current finger according to the fingerprint image and the spatial trajectory.

[0169] In a possible implementation manner, the collection unit 701 is configured to sequentially collect at least two fingerprint images of the current finger in a time sequence;

[0170] It also includes: a setting unit, which is use...

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Abstract

The invention provides a fingerprint data acquisition method and apparatus and a fingerprint identification method and apparatus. The fingerprint data acquisition method comprises: collecting at least two fingerprint images of a current finger; determining a change curve of the at least two fingerprint images in space; according to the fingerprint images and the change curve, determining a space trajectory of fingerprint lines; and according to the fingerprint images and the space trajectory, constructing a corresponding three-dimensional fingerprint of the current finger. The invention provides the fingerprint data acquisition method and apparatus and the fingerprint identification method and apparatus, which can improve the security of fingerprint data.

Description

technical field [0001] The invention relates to the technical field of data collection, in particular to a method and device for acquiring fingerprint data, and a fingerprint identification method and device. Background technique [0002] With the rapid development of science and technology, the application of fingerprint identification technology is becoming more and more extensive. In fingerprint identification technology, a very important link is the acquisition of fingerprint data. [0003] In the prior art, the acquisition of fingerprint data is mainly to acquire fingerprint data in a two-dimensional image mode. Press your finger on the collection device, wait for a period of time, the collection device obtains the current fingerprint image, and generates fingerprint data according to the collected two-dimensional fingerprint image. In a specific application, the fingerprint data of the collected two-dimensional fingerprint image pattern is compared with the current f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/62
CPCG06V20/653G06F18/00
Inventor 王红娟董毅李光瑞王玉奎
Owner INSPUR FINANCIAL INFORMATION TECH CO LTD
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