Date of download: 10/12/2017 Copyright © ASME. All rights reserved. From: Kalman Smoother Based Force Localization and Mapping Using Intravital Video Microscopy J. Dyn. Sys., Meas., Control. 2010;132(6):061503-061503-8. doi:10.1115/1.4002485 Figure Legend: Two-dimensional projection of 40 cell tracks from the 200×150×50 μm3 visual field provided by a two-photon video microscopy (model generated). Each track is translated so that the track begins at the diagram origin. The cells can move in all directions, therefore, the limits for plotting translated trajectories are ±200 μm and ±150 μm along x and y axes, respectively.