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Fingerprint identification method, fingerprint identification apparatus and terminal device thereof

A fingerprint recognition and signal technology, applied in character and pattern recognition, instruments, computer parts, etc., can solve problems such as hidden dangers of fingerprint identification applications, and achieve the effect of solving hidden dangers

Active Publication Date: 2015-12-02
NANCHANG OUFEI BIOLOGICAL IDENTIFICATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the copied fingerprint is the same as the fingerprint pattern of the object to be detected, the copied fingerprint can also pass the verification of the conventional fingerprint identification device, which brings a great hidden danger to the security of the fingerprint identification application.

Method used

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  • Fingerprint identification method, fingerprint identification apparatus and terminal device thereof
  • Fingerprint identification method, fingerprint identification apparatus and terminal device thereof
  • Fingerprint identification method, fingerprint identification apparatus and terminal device thereof

Examples

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Embodiment Construction

[0027] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar structures in the drawings, and thus their repeated descriptions will be omitted.

[0028] The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the invention. However, those skilled in the art will appreciate that the technical solutions of the present invention may be practiced without one or more of the specific...

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Abstract

The invention provides a fingerprint identification method, a fingerprint identification apparatus and a terminal device thereof. The fingerprint identification method comprises steps of: transmitting an optical signal to an object to be detected; sensing and receiving an optical signal reflected by the object to be detected; converting the reflected optical signal into an electric signal and outputting the electric signal; receiving the electric signal and computing a pulse signal of the object to be detected according to a difference between the quality of the unreflected optical signal and the quality of the reflected optical signal in order to detect whether the object to be detected is a living body; and performing fingerprint identification verification after it is determined that the object to be detected is the living body. According to a principle that human blood reflects and absorbs light, the method detects the difference between the quality of the unreflected optical signal and the quality of the reflected optical signal so as to compute the pulse signal of the object to be detected and further determine whether the object to be detected is the living body, thereby solving a problem of a potential safety hazard that a prosthetic finger may be used for being subjected to identity identification by a conventional fingerprint identification apparatus.

Description

technical field [0001] The invention relates to the technical field of biological feature identification, in particular to a fingerprint identification method with a living body detection function, a fingerprint identification device and a terminal device thereof. Background technique [0002] Biometric identification technology is the use of human physiological or behavioral characteristics to identify individuals. At present, the physiological characteristics that have been used for biometric identification include hand shape, fingerprint, face shape, iris, retina, pulse, auricle, etc. Among them, fingerprints are the most reliable physiological characteristics, so fingerprint recognition technology is the most widely used. [0003] In the existing conventional fingerprint recognition device, only the fingerprint pattern of the object to be detected is recognized, and then compared with the fingerprint pattern recorded in the system. If it is determined that the fingerpri...

Claims

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Application Information

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IPC IPC(8): G06K9/00
CPCG06V40/13
Inventor 白安鹏关赛新程胜叶崇茂丁国栋
Owner NANCHANG OUFEI BIOLOGICAL IDENTIFICATION TECH
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