CN111956243A - Stress assessment system for counter - Google Patents

Abstract

The invention discloses a tension evaluation system for counters, which comprises thermal imaging processing and application, and the system comprises: the emotion recognition system comprises an acquisition module, an emotion assessment unit, a display module and a storage module; the acquisition module is hidden on the counter top and acquires the facial information of the detected person; the emotion assessment unit receives the facial information of the detected person transmitted by the acquisition module, analyzes the respiratory frequency of the detected person and judges the emotional stress degree of the detected person by combining the nasal temperature distribution; the display module receives the emotional tension degree information of the detected person transmitted by the emotional evaluation module and displays the emotional tension degree of the detected person in a percentile score mode; the storage module stores the detected person face information data transmitted by the acquisition module, gives out emotional tension through percentile grading, reminds the detection person to carry out more detailed examination or question for the detected person with emotional tension, and provides basis for finding the suspect with illegal intention.

Description

A nervousness assessment system for the counter

technical field

The invention relates to thermal imaging processing and application, in particular to a nervousness evaluation system for a counter.

Background technique

At present, security inspections at airports, entry-exit ports, etc. are mainly based on the use of detection equipment to passively search for prohibited items and the subjective judgment of prosecutors. Compared with concealing prohibited items, it is more difficult to hide the nervousness of people with the intention of breaking the law and discipline when they are questioned in front of the counter. Nervous emotions can affect people's physiological activities, which are reflected by characteristics such as breathing rate, facial temperature, and speech rate, and it is difficult for people without special training to conceal it deliberately. Therefore, we propose a nervousness evaluation system for the counter, which can use the thermal imager to measure the relevant features non-contact, judge the nervousness of the inspected person, and remind the inspector to conduct a more detailed inspection of the nervous inspected person or cross-examination.

Generally speaking, the existing measurement methods mainly evaluate the psychological stress level of individuals by measuring the psychological feelings and physiological signal changes of the human body under different pressures. In the field of psychological research, self-reported questionnaires or scale tests are the traditional methods of psychological stress assessment. This method is a subjective assessment method and only reflects individual psychological stress to a certain extent. With the application of physiological signal detection technology, the systematic changes of human psychological pressure can be objectively reflected. In response to stressful events, the individual's autonomic nervous system induces physiological responses such as accelerated heartbeat, deepened breathing, peripheral vasoconstriction of the skin, increased blood pressure, and secretion of adrenaline. The synthesis and breakdown of stress hormones such as epinephrine and cortisol adjust the state of the body to a state of calm or equilibrium (ie, slower heart rate, shallower breathing, vasodilation of peripheral skin, etc.). These methods require blood testing of the tested person or contact measurement with medical instruments, not only the time cannot meet the time requirements of the counter procedures, but also will attract the testee's attention, increase the testee's nervousness, and affect the test result. .

SUMMARY OF THE INVENTION

According to the problems existing in the prior art, the present invention discloses a nervousness assessment system for a counter, comprising a collection module hidden on the counter surface and collecting facial information of the detected person;

receiving the facial information of the detected person transmitted by the acquisition module, analyzing the breathing frequency of the detected person and judging the emotional tension degree of the detected person in combination with the nasal temperature distribution;

A display module for displaying the emotional stress level of the detected person in the form of a percentage score by receiving the emotional stress level information of the tested person sent by the emotion evaluation module.

The system also includes a storage module that receives and stores the facial information data of the detected person transmitted by the acquisition module.

Further, the emotion evaluation unit comprises a nostril tracking module that receives the detection personnel facial information transmitted by the acquisition module, and locates and tracks the position of the nostrils;

Receive the nostril position positioned by the nostril tracking module, and perform a nose temperature feature extraction module that extracts the temperature distribution of the nose region and the variation feature of the temperature distribution around the nostril position;

Receiving the nostril position positioned by the nostril tracking module, and extracting a breathing feature extraction module for extracting breathing frequency and breathing stability features according to the temperature sequence change of the nostril position;

Receive the respiratory frequency and respiratory stability characteristics transmitted by the breathing feature extraction module and the nasal region temperature distribution and variation characteristics transmitted by the nasal temperature feature extraction module, and use artificial intelligence algorithms to judge the data analysis of the emotional tension of the detected person module.

Further, the acquisition module adopts a thermal imager.

Due to the adoption of the above technical solution, the present invention provides a nervousness assessment system for a counter, which can covertly install a thermal imager on the counter top, so as to covertly and non-contact measurement of the face of the tested person from below, without aggravating the measured person. Psychological burden and improve the accuracy of emotional analysis; the thermal image video of the face temperature distribution of the detected person is collected by the thermal imager, and the data is transmitted to the emotional evaluation module. The temperature characteristics of the nose, to judge the nervousness of the tested person, the display module gives the emotional tension through a percentage system score, and reminds the testing personnel to conduct more detailed inspections or cross-examination of the emotionally stressed tested persons, in order to find out the intention to violate the laws and regulations suspects to provide evidence.

Description of drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments described in this application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

Fig. 1 is the system structure diagram of the present invention;

FIG. 2 is a structural diagram of a system emotion evaluation unit of the present invention.

Detailed ways

In order to make the technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention:

Fig. 1 is the system structure diagram of the present invention, a kind of nervous emotion evaluation system for the counter, including: acquisition module, emotion evaluation unit, display module and storage module;

The collection module is hidden on the counter surface, and collects the facial information of the detected person;

The emotion evaluation unit receives the facial information of the detected person transmitted by the acquisition module, analyzes the breathing frequency of the detected person, and judges the emotional tension degree of the detected person in combination with the nasal temperature distribution;

The display module receives the information on the emotional stress level of the tested person transmitted by the emotional evaluation module, and displays the emotional stress level of the tested person in the form of a percentile score;

The facial information data of the detected person transmitted by the storage module and the acquisition module are stored.

Fig. 2 is the structural diagram of the system emotion evaluation unit of the present invention, and the emotion evaluation unit comprises a nostril tracking module, a nose temperature feature extraction module, a breathing feature extraction module and a data analysis module;

The nostril tracking module receives the detection personnel's facial information transmitted by the acquisition module, locates and tracks the position of the nostril, and obtains the position of the nostril;

The nose temperature feature extraction module receives the nostril position located by the nostril tracking module, and extracts the temperature distribution and variation characteristics of the nose region from the temperature distribution around the nostril position;

The breathing feature extraction module receives the nostril position located by the nostril tracking module, and extracts the breathing frequency and breathing stability features from the temperature sequence change of the nostril position;

The data analysis module receives the respiratory frequency and respiratory stability characteristics transmitted by the respiratory feature extraction module and the nasal region temperature distribution and variation characteristics transmitted by the nose temperature feature extraction module, and uses an artificial intelligence algorithm to judge the emotion of the detected person. level of tension.

The acquisition module adopts a thermal imager, and the thermal imager is installed on the counter top, facing the side of the tested person, and collects thermal imaging video images around the nostrils of the tested person from below.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. The equivalent replacement or change of the inventive concept thereof shall be included within the protection scope of the present invention.

Claims (4)

1. A tension mood assessment system for a counter, characterized by: the method comprises the following steps:

the acquisition module is hidden on the counter table and is used for acquiring the facial information of the detected person;

the emotion assessment unit is used for receiving the facial information of the detected person transmitted by the acquisition module, analyzing the respiratory frequency of the detected person and judging the emotional stress degree of the detected person by combining the nasal temperature distribution;

and the display module is used for receiving the emotional tension degree information of the detected person transmitted by the emotional evaluation module and displaying the emotional tension degree of the detected person in a form of percentile score.

2. A stress mood assessment system for counters according to claim 1, characterized in that:

the system also comprises a storage module for receiving and storing the face information data of the detected person transmitted by the acquisition module.

3. A stress mood assessment system for counters according to claim 1, characterized in that:

the emotion assessment unit comprises a nostril tracking module which receives the face information of the detected person transmitted by the acquisition module, and positions and tracks the position of the nostril;

the nose temperature characteristic extraction module is used for receiving the nostril position positioned by the nostril tracking module and extracting the temperature distribution and the change characteristic of the nose area of the temperature distribution around the nostril position;

the respiratory feature extraction module is used for receiving the nostril position positioned by the nostril tracking module and extracting respiratory frequency and respiratory stability features according to the temperature time sequence change of the nostril position;

and the data analysis module is used for receiving the respiratory frequency and the respiratory stability characteristics transmitted by the respiratory characteristic extraction module and the nasal region temperature distribution and change characteristics transmitted by the nasal temperature characteristic extraction module and judging the emotional stress degree of the detected person by using an artificial intelligence algorithm.

4. A stress mood assessment system for counters according to claim 1, characterized in that: the acquisition module adopts a thermal imager.

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