Human face video processing-based heart rate detection method
A detection method and video processing technology, applied in pulse/heart rate measurement, diagnostic recording/measurement, sensors, etc., can solve problems such as difficulty in extracting BVP signals
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[0060] Reference figure 1 The implementation steps of the heart rate detection of the present invention are as follows:
[0061] Step 1, refer to figure 2 , Place an ordinary webcam at a position 0.5m in front of the face, or it can be placed on top of the computer monitor, and the camera and the computer are connected by USB. The operator uses Matlab software to control the camera to shoot video to ensure that the face is completely within the video frame. All videos are continuously captured for 10 seconds with a resolution of 640×480, a frame rate of 30 frames per second and RGB color space, and saved in AVI format .
[0062] Step 2: Perform face feature point detection and tracking on the collected video, and add a tilt correction operation to obtain a stable face video, which effectively solves three abnormal situations that cannot be avoided in the prior art.
[0063] 2a) Taking the first frame of the input video as the reference image, firstly, the rectangular face area is ...
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