Noncontact Heart Rate Measurement Using a Webcam, Based on Joint Blind Source Separation and a Skin Reflection Model: For a Wide Range of Imaging Conditions

Table 1

Details of the dataset from a previous study in our laboratory [21].

Scenarios	Description of the scenario
Stationary	All subjects were required to sit still with their faces unobstructed and to look at the camera directly without movement.
Exercise recovery	All subjects were asked to do 20 squats in approximately two minutes. Immediately after the exercise, the subjects were asked to sit still and look directly at the camera.
Swinging head	All subjects were required to swing their heads from side to side at a rate of about 10 times per minute. Some stills from the recording of two subjects with different skin colors are shown in Figure 7.
Human-computer interaction	All subjects were required to play computer games with no constraints on their movement.