Some of scientists don’t correspond stress with emotions, however, nowadays stress is the most popular term characterizing human mental state. Vibraimage program allows fairly analyze own or others stress level, that is important for regular mental health control, also as precautions, rehabilitation and cure for depression states. Stress level calculates by the following equation [1]:



where:
St – calculated stress level;
AL,i – amplitude sum in left side for “i” line of object;
AR,i – amplitude sum in right side for “i” line of object;
Amax,i– maximum value between AL,i and AR,i;
FL,i – maximum frequency for pixels in left side for “i” line of object;
FR,i – maximum frequency for pixels in right side for “i” line of object;
Fmax,i – maximum value between FL,i and FR,i;
n – number of lines in object.

Stress equation algorithm includes different filters, settings and adjusting described in vibraimage software system Manual. According to the suggested equation, stress level depends on left to right vibration correlation and more high stress level corresponds with advanced vibration asymmetry.
External vibraimage (aura) of persons with high stress level display below:



Normal person stress level calculated by the vibraimage system with default micro settings has range (15-50)%. Person with more high or low stress level differs from the statistical norms and could be stopped in airport for more detail personal control.



Reference
1. Viktor Minkin. Vibraimage (Russian language). Renome, 2007.