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An identity verification method based on blinking sound signal

An identity verification method and sound signal technology, applied in the field of identity verification, can solve the problems of multiple computing resources, high working frequency band, cost, etc.

Active Publication Date: 2022-04-22
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Acoustic sensing can be achieved through the microphone and speaker already built into the smartphone, while other wireless sensing technologies such as WiFi and mmWave require additional small base stations or additional hardware, and will cost more due to the higher operating frequency band. computing resources

Method used

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  • An identity verification method based on blinking sound signal
  • An identity verification method based on blinking sound signal
  • An identity verification method based on blinking sound signal

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Embodiment Construction

[0054] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0055] The embodiment of the present invention discloses a kind of identity verification method based on blinking sound signal, such as figure 1 As shown, the specific steps include the following:

[0056] S101 Acquire an echo signal, wherein the echo signal includes eye blink information;

[0057] S102 preprocessing, using short-time Fourier transform to convert the energy spectral density signal of the echo signal containing eye blink information, and performing outlier and interference elimination;

[0058] S103 Integrated empi...

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Abstract

The invention discloses an identity verification method based on blinking sound signal, which is applied in the technical field of identity verification. The specific steps include the following steps: acquiring an echo signal, wherein the echo signal contains blinking information; The energy spectral density signal of the echo signal of the information, and the outlier and interference are eliminated; the energy spectral density signal is decomposed into components and residuals by using the integrated empirical mode; fast Fourier transform is performed on each obtained component to obtain the obtained The signal corresponding to the blink information in the component is converted into a Hilbert spectrum; the non-local relationship representation layer is used to increase the frequency domain feature in the spectrum frame of the Hilbert spectrum; a feature extractor and a training classifier are constructed, Distinguish legitimate users from other users. The invention can identify the blinking signal of the user without violating the privacy of the user, so as to achieve the purpose of identity verification.

Description

technical field [0001] The present invention relates to the technical field of identity verification, in particular to an identity verification method based on blinking sound signals. Background technique [0002] Smartphones have become an indispensable tool in everyday life. Smartphones can store private data (eg photos, videos, passwords) and conduct secure transactions (apps such as mobile banking). User authentication on smartphones is critical to defending against potential attacks. [0003] Smartphone authentication systems rely on fingerprints, faces, or voiceprints for convenient identity authentication. Nowadays, smart phones generally use fingerprint recognition and face recognition technology as security authentication for unlocking and mobile payment. Capacitive fingerprint recognition is a common method. In recent years, the development of organic light-emitting diode (OLED) screens has enabled the integration of optical-based off-screen fingerprints into sm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/32G06K9/00G06N3/04G06N3/08
CPCG06F21/32G06N3/084G06N3/045G06F2218/00G06F2218/08G06F2218/12
Inventor 陈艳姣欧润民邓洋涛
Owner ZHEJIANG UNIV
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