Measuring method, measurement system and the photographic device of pulse wave velocity

Measuring method, measurement system and the photographic device of pulse wave velocity

  • CN 105,188,522 B
  • Filed: 10/22/2013
  • Issued: 06/11/2019
  • Est. Priority Date: 03/08/2013
  • Status: Active Grant
First Claim
Patent Images

1. a kind of measuring method of pulse wave velocity, has:

  • Image pickup step shoots the mutual not phase in multiple positions of human body simultaneously by single Visible Light Camera with contactless stateTwo same positions, and generate the continuous image data in time series;

    Subject detecting step detects described two positions from each frame image of described image data;

    Pulse wave detecting step, by changing and pre-prepd multiple pulses the pixel value of the timeliness at described two positionsWave signal model is fitted respectively and selects the highest pulse wave signal model of similar degree, uses the selected pulse wave signalModel and generate and the variation of the pixel value of the timeliness at described two positions in each frame image carried out obtained by temporally interpolationInterpolated data, and be based on the interpolated data, detect the pulse wave at described two positions respectively;

    AndPulse wave velocity calculates step, and the time difference of the pulse wave based on described two positions calculates the arteries and veins of the human bodyIt fights velocity of wave propagation.

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