Figure 6From: Evaluation of an intelligent wheelchair system for older adults with cognitive impairmentsAverage stopping distances from the obstacle to the sensor. Dashed line indicates set threshold distance (700Â mm). Results for the previous iteration of the IWS are shown in blue1, and the current IWS are shown in green. Distances that are closer to the threshold indicate a more accurate stopping distance. Error bars show the standard deviation of stopping distances.Back to article page