| 摘要 |
The method consists in placing the finger pressure on the Smartphone's camera, which is illuminated by LED, and capture video with footage from the movement of blood flow in the finger. Video decomposes into individual shots from the processor and averages the colour for each frame. The resulting colours decompose in RGB colour scheme, the arithmetic mean of the RGB are saved as coordinates of points relative to time and construct graph. All values are calibrated with calibration function, which represents the linear transformation with the calibration values taken from the real measured blood pressure. The resultant graph is a function of the blood pressure of the type F (mm Hg) = sec. From the chart, calculate the current blood pressure, and the results are shown on the display of your Smartphone. |
