Fig. 2.

Example gesture event peak speed per method. Example of a gesture event lasting 800 ms (see the video here: https://osf.io/aj2uk/) from the dataset (Event 10 from Participant 2). Red dots indicate the positive maxima peaks in the respective data streams: fundamental frequency in hertz (F0), Polhemus speed in centimeters per second, DNN speed in pixel position change per second, and pixel-method speed in summed pixel change per second. Note that velocity is directional speed, whereas speed is non-direction-specific velocity