“Decomposing non-rigid cell motion via kinematic skeletonization” by Wilson and Theriot

Considering that most cells have an intricate spatial organization to their components and biological processes, it is beneficial to express sub-cellular positions and displacements in coordinates relative to the enclosing cell. This spatial context is often more meaningful than that of the microscope field of view in which a cell is observed. However, defining such a cell coordinate system can be difficult for cells which are moving rapidly and changing shape, requiring that one define a moving frame of reference to which measurements can be transformed.

1. Shi, J., and Tomasi, C. 1994. Good features to track. Proceedings CVPR ’94, 593–600.
2. Wilson, C. A., and Theriot, J. A. 2006. A correlation-based approach to calculate rotation and translation of moving cells. IEEE Trans Image Process 15, 7, 1939–51.