Fig. 13

Bland and Altman plots and Scatter plots for the Velocity. On the left side: a, c show the comparison between GAITRite (criterion) and Kinect-M, where the velocity is estimated with heel strike and toe-off instants computed manually. On the right side: b, d show the comparison between GAITRite (criterion) and Kinect-A, where the velocity is computed fully automatically. Solid lines indicate the mean difference between criterion and the system to be validated for the Bland and Altman plots, as well as the linear best-fit for the scatter plot. Dashed lines indicate the limits of agreement (\(\pm 1.96\) SD) for the Bland and Altman plot, as well as the identity line for the scatter plot