Fig. 3From: A novel brain-controlled wheelchair combined with computer vision and augmented realityThe motion of a subject X in the online experiment. A Shows the motion trajectory, and B shows the time cost to reach each target. There were three persons, three chairs, three computers, one bottle, and several obstacles in the room. To distinguish objects belonging to the same categories, we added a number before each object, e.g., 1_person was the first person in the roomBack to article page