S. YEHUDAI-RESHEFFK. KERENJohn Wiley & Sons, Ltd.Journal of MicroscopyI. Seroussi, D. Veikherman, N. Ofer, S. Yehudai-Reshe(R) and K. Keren, Segmentation and tracking of live cells in phase-contrast images using directional gradient vector °ow for snakes, Int. J. Microsc. 247 (...