Figure 6.

Detected time of change under a low noise setting based on using only the forward pass, only the backward pass, or averaging the two for the (left) first change (at $k=300$) of the diffusion coefficient from 0.05 to 0.2 $\mathsf{\mu }$m${}^2$/s and the (right) second change (at $k=700)$ back to 0.05 $\mathsf{\mu }$m${}^2$/s.