Abstract: Method for detecting or predicting the occurrence of a cell event, selected from between cell division or cell death, in a sample (10), the sample extending in at least one sample plane (P10) and comprising cells (10p) immersed in a medium, the method comprising the following steps: a) arranging the sample between a light source (11) and an image sensor (16); b) illuminating the sample (10) using the light source (11) and acquiring a plurality of successive images ((Ii(ti), I1(ti+1) . . . I1(ti+K)) of the sample at different instants ([ti; ti+K]) forming an acquisition time range, each image being representative of an exposure light wave to which the image sensor is exposed; c) on the basis of each acquired image of the sample, calculating an observation image at each instant (I10(ti), I10(ti+1) . . .