Fig. 2
From: An objective measure of hyperactivity aspects with compressed webcam video
Webcam recording setting. Figure 1 shows the general setup used to record movement. The camera adjustment is shown on the left. The distance to each subject was detected by barely capturing the scalp and feet while placing the camera on a table approximately 50 cm above the ground. On the right side, a picture of a sequence is shown. The camera was adjusted so that each subject was sitting roughly in the middle of the frame