A convolutional neural network for segmentation of yeast cells without manual training annotations

Herbert Kruitbosch, Yasmin Mzayek, Sara Omlor, Paolo Guerra, Andreas Milias-Argeitis*

*Corresponding author voor dit werk

OnderzoeksoutputAcademicpeer review

12 Citaten (Scopus)
116 Downloads (Pure)

Samenvatting

Motivation: Single-cell time-lapse microscopy is a ubiquitous tool for studying the dynamics of complex cellular processes. While imaging can be automated to generate very large volumes of data, the processing of the resulting movies to extract high-quality single-cell information remains a challenging task. The development of software tools that automatically identify and track cells is essential for realizing the full potential of time-lapse microscopy data. Convolutional neural networks (CNNs) are ideally suited for such applications, but require great amounts of manually annotated data for training, a time-consuming and tedious process. Results: We developed a new approach to CNN training for yeast cell segmentation based on synthetic data and present (i) a software tool for the generation of synthetic images mimicking brightfield images of budding yeast cells and (ii) a convolutional neural network (Mask R-CNN) for yeast segmentation that was trained on a fully synthetic dataset. The Mask R-CNN performed excellently on segmenting actual microscopy images of budding yeast cells, and a density-based spatial clustering algorithm (DBSCAN) was able to track the detected cells across the frames of microscopy movies. Our synthetic data creation tool completely bypassed the laborious generation of manually annotated training datasets, and can be easily adjusted to produce images with many different features. The incorporation of synthetic data creation into the development pipeline of CNN-based tools for budding yeast microscopy is a critical step toward the generation of more powerful, widely applicable and user-friendly image processing tools for this microorganism.

Originele taal-2English
Artikelnummerbtab835
Pagina's (van-tot)1427-1433
Aantal pagina's7
TijdschriftBioinformatics (Oxford, England)
Volume38
Nummer van het tijdschrift5
Vroegere onlinedatum10-dec.-2021
DOI's
StatusPublished - 1-mrt.-2022

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