The most popular networks used for cell segmentation (e.g. Cellpose, Stardist, HoverNet,...) rely on a prediction of a distance map. It yields unprecedented accuracy but hinges on fully annotated datasets. This is a serious limitation to generate training sets and perform transfer learning. In this paper, we propose a method that still relies on the distance map and handles partially annotated objects. We evaluate the performance of the proposed approach in the contexts of frugal learning, transfer learning and regular learning on regular databases. Our experiments show that it can lead to substantial savings in time and resources without sacrificing segmentation quality. The proposed algorithm is embedded in a user-friendly Napari plugin.
Cellpose · Deep learning · Distance Map · Frugal learning · Napari · Segmentation
@article{melba:2025:016:cazorla,
title = "Sketchpose: Learning to Segment Cells with Partial Annotations",
author = "Cazorla, Clément and Munier, Nathanaël and Morin, Renaud and Weiss, Pierre",
journal = "Machine Learning for Biomedical Imaging",
volume = "3",
issue = "August 2025 issue",
year = "2025",
pages = "367--381",
issn = "2766-905X",
doi = "https://doi.org/10.59275/j.melba.2025-f7b3",
url = "https://melba-journal.org/2025:016"
}
TY - JOUR
AU - Cazorla, Clément
AU - Munier, Nathanaël
AU - Morin, Renaud
AU - Weiss, Pierre
PY - 2025
TI - Sketchpose: Learning to Segment Cells with Partial Annotations
T2 - Machine Learning for Biomedical Imaging
VL - 3
IS - August 2025 issue
SP - 367
EP - 381
SN - 2766-905X
DO - https://doi.org/10.59275/j.melba.2025-f7b3
UR - https://melba-journal.org/2025:016
ER -