Fig. 8From: Enabling visually impaired people to learn three-dimensional tactile graphics with a 3DOF haptic mouseLeft: on the horizontal axis there are the percentages of Matching Ability and the errors in size and shape; on the vertical axis there are the geometrical descriptors. Right: the percentages of size errors depending on geometrical descriptors. Percentages are split into overestimation and underestimation errors. Whiskers represent standard deviations from the average valuesBack to article page