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Methods for finger biometric processing and associated finger biometric sensors

A biological measurement and sensor technology, applied in the field of biometrics, can solve problems such as reducing fingerprint recognition performance

Inactive Publication Date: 2006-12-27
AUTHENTEC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the above discussion, it can be seen that ignoring the uncertainty of the alignment between image slices can lead to greatly degraded fingerprinting performance

Method used

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  • Methods for finger biometric processing and associated finger biometric sensors
  • Methods for finger biometric processing and associated finger biometric sensors
  • Methods for finger biometric processing and associated finger biometric sensors

Examples

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Embodiment Construction

[0071] The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments of the invention are shown. However, the present invention can be implemented in many different forms and should not be limited to the examples given here. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Like reference numerals refer to like parts throughout.

[0072] The present invention involves exploiting the uncertainty of physical transformations between different sets of finger biometric enrollment data. For clarity of presentation, this and related features and advantages will first be described with respect to their application to touch finger biometric sensors, and then these principles will also be applied to sliding finger biometric sensors with additional features and advantages.

[0073] Refe...

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Abstract

A method for processing a plurality of biometric fingerprint images corresponding to parts of a fingerprint, the method accounting for uncertainty in the alignment of the parts. The method includes generating a respective estimated transformation between each pair of partial biometric fingerprint images, and generates a respective uncertainty for each estimated transformation. A graph structure called logical fingerprint biometric image graph may be associated with the above data wherein the partial images correspond to nodes and the estimated transformations and their respective uncertainty correspond to edges. The logical fingerprint biometric image graph is readily used for subsequent accurate matching in either touch sensor applications or slide sensor applications.

Description

[0001] related application [0002] This application is based upon the benefit of U.S. Provisional Patent Application No. 60 / 514,059, filed October 24, 2003, and U.S. Provisional Patent Application No. 60 / 507,793, filed October 1, 2003, the entire disclosures of which incorporated herein by reference. technical field [0003] The present invention relates to the field of biometrics, and more particularly to the field of finger biometric sensing and related registration and matching methods. Background technique [0004] Fingerprint sensing and matching is a reliable and widely used technology for personal identification or verification. In particular, a common fingerprint identification method requires scanning a fingerprint sample or an image thereof, and storing the image and / or unique features of the fingerprint image. The characteristics of the fingerprint sample can be compared with reference information or fingerprints already registered in a database to determine su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
Inventor 迈克尔·博谢拉
Owner AUTHENTEC
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