def compute_feature_9_per_frame(frame):
jid = 15
foot = np.asarray([frame[3 * jid], frame[3 * jid + 1], frame[3 * jid + 2]])
jid = 0
root = np.asarray([frame[3 * jid], frame[3 * jid + 1], frame[3 * jid + 2]])
distance = distance_between(foot, root)
return distance / 10
def calculate_speed(frames, time_step, jid):
array = []
old_position = np.asarray([frames[0][3 * jid], frames[0][3 * jid + 1], frames[0][3 * jid + 2]])
for i in range(1, len(frames)):
new_position = np.asarray([frames[i][3 * jid], frames[i][3 * jid + 1], frames[i][3 * jid + 2]])
distance = distance_between(new_position, old_position) / 10
array.append(distance / time_step)
old_position = new_position.copy()
array = np.asarray(array)
return np.mean(array)