Psychological pressure monitoring system based on HRV theory
A psychological stress, monitoring system technology, applied in the fields of biometrics, machine vision and medical health, which can solve problems such as noise interference
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[0014] to combine figure 1 As shown, in the following embodiments, the psychological stress monitoring system based on HRV theory includes: video recording equipment, face recognition algorithm, BVP algorithm, HRV analysis algorithm, and psychological stress assessment algorithm.
[0015] The video recording device collects the facial video data stream of the subject and transmits it to the face recognition module synchronously.
[0016] The face recognition algorithm adopts the face tracking algorithm to locate the face in the video data stream, and divides the face into two areas between the forehead and the bottom of the eyes and the top of the nose; the video image for these two areas is three The primary color (R / G / B) component is prone to noise interference. The face recognition algorithm uses the coherent averaging method to perform a spatial average sequence algorithm on the pixels in the selected area, so that when the light changes and the facial muscle activity of t...
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