Figure 2.

(a) Respective sizes of the seven different 3D Gaussian ellipsoidal observation volumes used in our simulations. (b) An array of observation volumes is shown. (c) ACFs expected for simple diffusion in a single observation volume (black line, Eq. 3) or for a regular array of detection volumes (green symbols: b = 2.5, purple symbols: b = 5, orange symbols: b = 7.5, Eq. 11) are shown. The lower panel shows the corresponding MSD ($\langle r^2\rangle /\left(6D\tau \right)$, as obtained by inversion of the ACFs shown in the upper panel). To see this figure in color, go online.