Micro-expression lie detector based on laser-induced graphene sensor

A laser-induced micro-expression technology, applied in the direction of sensors, instruments, measuring devices, etc., can solve the problem of only dozens or hundreds of videos, which cannot meet the conditions for sufficient neural network training, and the micro-expression recognition method is not robust and other issues to achieve the effect of improving accuracy and reducing interference

Pending Publication Date: 2022-07-05
ZHEJIANG SCI-TECH UNIV
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Problems solved by technology

[0004] The existing micro-expression recognition methods are to obtain the facial images of the persons being interrogated through visual methods, and then perform micro-expression recognition based on deep neural networks. Under the premise of sufficient neural network training, for complex problems such as micro-expression recognition, the neural net

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  • Micro-expression lie detector based on laser-induced graphene sensor
  • Micro-expression lie detector based on laser-induced graphene sensor
  • Micro-expression lie detector based on laser-induced graphene sensor

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Embodiment Construction

[0035] In order to better illustrate and describe the content of the present invention, the following description will be carried out in conjunction with the accompanying drawings and embodiments:

[0036] A micro-expression polygraph based on a laser-induced graphene sensor, the micro-expression polygraph method comprising the following steps:

[0037] (1) The flexible electronic skin sensor is attached to the facial expression muscles of the examinee, and the waveform signal of the muscle change in the normal state is obtained;

[0038] (2) transmitting the collected signal waveform to the display device through the signal processing module to obtain the real-time signal waveform;

[0039] (3) Asking questions to the person under trial, the person under trial shows a brief micro-expression under the condition of psychological pressure, and the signal waveform corresponding to the facial muscles changes rapidly in a short period of time;

[0040] (4) The polygraph results ar...

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Abstract

The invention discloses a micro-expression lie detector based on a laser-induced graphene sensor, which is characterized in that laser-induced graphene is utilized to prepare a flexible electronic skin sensor, and the flexible electronic skin sensor is attached to the facial muscle of a person to be examined to detect the change of the facial muscle so as to obtain the characteristic waveform of the facial expression; when the examined person generates the micro-expression, the waveform has corresponding characteristic change, and a lie detection result is obtained.

Description

technical field [0001] The invention belongs to the technical field of polygraph, in particular to a micro-expression polygraph based on a laser-induced graphene sensor. Background technique [0002] When people deliberately provide lies, they will generate a certain amount of psychological pressure, and this psychological pressure will cause a series of physiological reactions, such as abnormal breathing rate, rapid heartbeat, increased blood pressure, slightly increased body temperature, sweaty palms, and slight muscle tremors. Wait. Since these physiological responses are controlled by the human autonomic nervous system, they cannot be restrained by human subjective will. The polygraph can accurately depict abnormal physiological changes, reflecting the emotional state of the subject at that time. At present, polygraphs on the market mainly measure a person's psychological changes through three aspects, namely pulse, respiration and skin resistance. However, an innocen...

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Application Information

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IPC IPC(8): A61B5/16A61B5/00G01B7/00
CPCA61B5/164A61B5/4519G01B7/00A61B2562/02
Inventor 王若飞刘爱萍程琳阮迪清姜兆辉朱龙伟何晶
Owner ZHEJIANG SCI-TECH UNIV
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