In three time-lapse microscopy image sequences, we manually located apoptotic events.
Each row of the annotation file contains the following information:

frame_no x_position y_position

Please email to seungilh@cs.cmu.edu if you find anything wrong.

The apoptotic events occured on or close to the image boundary were marked, but not taken into account for the evaluation. 

We refer to the following paper for the detailed acquisition procedure of the images and annotations.

S. Huh, D.E.F. Ker, H. Su, and T. Kanade,
Apoptosis Detection for Adherent Cell Populations in Time-lapse Phase-contrast Microscopy Images, 
In Proc. International Conference on Medical Image Computing and Computer Assisted Intervention (MICCAI'12), 2012.
