Interest in detecting the psychophysical state of a person according to various biometric data (KGR, pupillography and profiling, etc.) is becoming more widespread every year. The most statistically ...reliable and resistant to counterfeiting systems are the identification of a person by the iris and face. Biometric identification systems can be combined. This paper presents proposals for improving the existing systems of recognition of the psychophysical state of a person.
Interest in detecting the psychophysical state of a person according to various biometric data (KGR, pupillography and profiling, etc.) is becoming more widespread every year. The most statistically ...reliable and resistant to counterfeiting systems are the identification of a person by the iris and face. Biometric identification systems can be combined. This paper presents proposals for improving the existing systems of recognition of the psychophysical state of a person.
Currently, various mathematical models of pupillograms are used to process the results of pupillometric studies. There are also mathematical models of emotions. At the moment, research does'nt ...combine modeling of pupillograms and modeling of emotions. In our work, an attempt was made to determine the fear coefficient by pupillograms. For research, an optoelectronic installation has been developed. As an example, we give an example of the analysis of pupillograms of people of an older age category. A mathematical model of the pupillogram plot is obtained, obtained in response to fear emotion.
In modern tracking systems, passive observation is used. Based on the video files identify the person. Mimics determine the elementary emotions. Terrorists are taught to hide emotions. We need a ...method for recognizing a person's stressed state, based on an independent reaction of the body. An active method for recognizing the reaction of a person to an external stimulus is proposed. The first results of an investigation of the eye reaction to the test object are presented. When developing test objects for emotion recognition systems, it is important not to introduce distortion. It is necessary that the test object affects only the human emotions and does not perform other actions that cause the pupil changes. The article presents the results of studies of the effect of the color of the test object on the size of the pupil.
The paper shows new possibilities for studying the effects of microheterogeneous combustion by the method of high-speed micro-thermal imaging. On each video frame, the area of the microfocal ...reaction, where local superadiabatic heating occurs has been identified,. All the discrete regions of heat generation were combined on a common image of the thermal microstructure of the combustion reaction wave. The characteristic size of the foci of combustion in the Ni-Al system was from 150 to 300 μm, which is 5 times larger than the size of the largest powder particles. It was found experimentally that the combustion front propagates only in the local regions of superadiabatic heating and the motion has a discrete step. The thermal microstructure has the form of a quasiperiodic sequence of layers, the spatial direction of which weakly depends on the position of the combustion front with respect to the horizontal. To verify this fact, which contradicts the classical theory of wave stability in the spin combustion mode, the differential chronoscopic analysis of the interframe difference in the motion of the combustion front line was selected. As a result, it was shown that, independently of the geometry of the combustion front, a synchronous and quasi-periodic occurrence of new local combustion sites is observed. The period of thermochemical induction between each discrete step of motion was from 0.1 to 0.2 ms. Thus, the data of the 2D thermal map of differential chronoscopy (DCS) allow visualization of the SHS combustion wave in the form of coherent thermal structures with quasiperiodic parameters.
It is often necessary to investigate high temperature fast moving microobjects. If you want to measure their temperature, use optoelectronic measuring systems. Optoelectronic systems are always ...calibrated over a stationary absolutely black body. One of the problems of pyrometry is that you can not use this calibration to measure the temperature of moving objects. Two solutions are proposed in 1. This article outlines the first results of validation 2. An experimentally justified coefficient that allows one to take into account the influence of its motion on the decrease in the video signal of the photosensor in the regime of charge accumulation. The study was partially supported by RFBR in the framework of a research project № 15-42-00106
In this paper, the movement of the pupils is a biometric indicator that analyzes the emotional state of a person. Eyetracking using infrared illumination based on the determination of the ...displacement vector between the centers of the pupil and the shine of the cornea gives results with high accuracy, provided that the human head is fixed. A method for determining the coordinates of the center of attention in the absence of fixation of the head without using infrared illumination is proposed. The accuracy of determining the coordinates of the center of attention is improved by moving from a coordinate system associated with a fixed head to a coordinate system associated with a moving center of the pupil.
The luminophor coating of an electro- optical converter afterglow introduces an additional error to the measurement. The ratio that allows to calculate the intensity of spurious illumination at each ...subsequent frame have been determinate according to experimental data of luminescence kinetics. The proposed method increases the noise immunity of the electrooptical converter by eliminating luminophor afterglow.
Information capacity of optoelectronic measuring systems significantly exceeds the volume of the others. The residual afterglow EOC creates additional uncertainty. There is a partial solution to the ...problem 1-2. The work is dedicated to the enhancement of existing methods to fight the afterglow.
The correction factor introduction in the method of measuring the brightness temperature of individual hot particles moving at speeds of 100-1140m s with diameter above the diffraction limit of the ...OES, can solve the problem of the moving objects brightness pyrometry, increasing accuracy of at least 2.5%.
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