The heart’s pulse signal as represented in the changes in pixel values of the recorded skin is typically noisy, especially when videos are recorded in either a dark environment and when the skin surface is placed at a large distance (i.e., consists of few video pixels). The algorithms that filter or “clean up” the signals to remove noise should be improved by applying new signal processing methods.
The heart’s pulse signal as represented in the changes in pixel values of the recorded skin is typically noisy, especially when videos are recorded in either a dark environment and when the skin surface is placed at a large distance (i.e., consists of few video pixels). The algorithms that filter or “clean up” the signals to remove noise should be improved by applying new signal processing methods.