Instance Segmentation of Densely Packed Cells Using a Hybrid Model of U-Net and Mask R-CNN. - Tomasz K. Konopczynski; Ron Heiman; Piotr Woznicki; Pawel Gniewek; Marie-Cécilia Duvernoy; Oskar Hallatschek; Jürgen Hesser (ICAISC (1), 2020)