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Method and device for improved fingerprint matching

A fingerprint and instrument technology, applied in the field of fingerprint sample input devices, to achieve the effects of avoiding mismatch, low processing capacity, and less calculation and time

Inactive Publication Date: 2009-08-26
PRECISE BIOMETRICS AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The two main difficulties are ensuring that the templates are well preserved, and making reliable comparisons
[0005] Said templates are considered to be the user's digital identity proof, so if lost, the danger of being misused by others is obvious

Method used

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  • Method and device for improved fingerprint matching
  • Method and device for improved fingerprint matching
  • Method and device for improved fingerprint matching

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0077] figure 1 A fingerprint sample input device according to an embodiment of the inventive concept is schematically illustrated. It should be noted that those parts that do not contribute to the core of the inventive concept are omitted so as not to obscure the characteristics of the inventive concept.

[0078] The fingerprint sample input device 100 includes a fingerprint reader 101 for reading a fingerprint sample. The fingerprint reader can be integrated with the rest of the fingerprint sample input device, or it can be connected as a stand-alone unit. The fingerprint reader is preferably a capacitive type sensor, but it could also be a light sensitive, thermal or pressure sensitive sensor, or any other commercially available fingerprint sensor.

[0079] The fingerprint sample input device also includes a receiver 102 for receiving the public part of the fingerprint template. The receiver 102 may be arranged to receive the common part of the fingerprint template via o...

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PUM

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Abstract

A fingerprint sample input device, a fingerprint verification apparatus, a method for aligning a fingerprint sample, and a method for fingerprint verification are disclosed. The fingerprint sample input device includes a fingerprint reader, a receiver of the common part of the fingerprint template, an alignment matcher, a matrix generator and a transmitter. The fingerprint verification instrument includes a memory, a transmitter, a receiver, a processor, a matrix comparator and a threshold comparator. The method for aligning fingerprint samples includes reading in a fingerprint sample, receiving a common portion of a fingerprint template, searching for and determining matching locations between the sample and the template, generating an aligned spectral data matrix, and sending it to the fingerprint Validate the instrument. The method for fingerprint verification includes sending a common part of a template, receiving an aligned spectral data matrix, determining a matrix difference between a spectral template matrix and the aligned spectral data matrix, comparing the matrix difference with Thresholds are compared and the results are output.

Description

technical field [0001] The inventive concept relates to a fingerprint sample input device, a fingerprint verification apparatus, a method for aligning a fingerprint sample, and a method for fingerprint verification. Background technique [0002] The demand for solutions for high-security tunnels is increasing day by day, and thus the demand for faster and more user-friendly technical tunnel solutions is also increasing. [0003] A well-known technique for channel security is fingerprint authentication. The main idea of ​​this technique is to enroll a sample of the user's fingerprint, preferably digitized, which is then compared with a pre-stored template. If the result of the comparison is affirmative, it is granted, otherwise it is not allowed. [0004] This seems simple, but there are several difficulties. The two main difficulties are ensuring that the templates are well preserved and making reliable comparisons. [0005] Said template is considered as the user's digi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00
CPCG06V40/12
Inventor M·温纳格伦
Owner PRECISE BIOMETRICS AB
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