Automating cell counting in fluorescent microscopy through deep learning with c-ResUnet
Abstract Counting cells in fluorescent microscopy is a tedious, time-consuming task that researchers have to accomplish to assess the effects of different experimental conditions on biological structures of interest. Although such objects are generally easy to identify, the process of manually annot...
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2021
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oai:doaj.org-article:6ead4c94f6484e7f9793ae43d1f5239f2021-11-28T12:20:21ZAutomating cell counting in fluorescent microscopy through deep learning with c-ResUnet10.1038/s41598-021-01929-52045-2322https://doaj.org/article/6ead4c94f6484e7f9793ae43d1f5239f2021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-01929-5https://doaj.org/toc/2045-2322Abstract Counting cells in fluorescent microscopy is a tedious, time-consuming task that researchers have to accomplish to assess the effects of different experimental conditions on biological structures of interest. Although such objects are generally easy to identify, the process of manually annotating cells is sometimes subject to fatigue errors and suffers from arbitrariness due to the operator’s interpretation of the borderline cases. We propose a Deep Learning approach that exploits a fully-convolutional network in a binary segmentation fashion to localize the objects of interest. Counts are then retrieved as the number of detected items. Specifically, we introduce a Unet-like architecture, cell ResUnet (c-ResUnet), and compare its performance against 3 similar architectures. In addition, we evaluate through ablation studies the impact of two design choices, (i) artifacts oversampling and (ii) weight maps that penalize the errors on cells boundaries increasingly with overcrowding. In summary, the c-ResUnet outperforms the competitors with respect to both detection and counting metrics (respectively, $$F_1$$ F 1 score = 0.81 and MAE = 3.09). Also, the introduction of weight maps contribute to enhance performances, especially in presence of clumping cells, artifacts and confounding biological structures. Posterior qualitative assessment by domain experts corroborates previous results, suggesting human-level performance inasmuch even erroneous predictions seem to fall within the limits of operator interpretation. Finally, we release the pre-trained model and the annotated dataset to foster research in this and related fields.Roberto MorelliLuca ClissaRoberto AmiciMatteo CerriTimna HitrecMarco LuppiLorenzo RinaldiFabio SquarcioAntonio ZoccoliNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021) |
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Medicine R Science Q Roberto Morelli Luca Clissa Roberto Amici Matteo Cerri Timna Hitrec Marco Luppi Lorenzo Rinaldi Fabio Squarcio Antonio Zoccoli Automating cell counting in fluorescent microscopy through deep learning with c-ResUnet |
description |
Abstract Counting cells in fluorescent microscopy is a tedious, time-consuming task that researchers have to accomplish to assess the effects of different experimental conditions on biological structures of interest. Although such objects are generally easy to identify, the process of manually annotating cells is sometimes subject to fatigue errors and suffers from arbitrariness due to the operator’s interpretation of the borderline cases. We propose a Deep Learning approach that exploits a fully-convolutional network in a binary segmentation fashion to localize the objects of interest. Counts are then retrieved as the number of detected items. Specifically, we introduce a Unet-like architecture, cell ResUnet (c-ResUnet), and compare its performance against 3 similar architectures. In addition, we evaluate through ablation studies the impact of two design choices, (i) artifacts oversampling and (ii) weight maps that penalize the errors on cells boundaries increasingly with overcrowding. In summary, the c-ResUnet outperforms the competitors with respect to both detection and counting metrics (respectively, $$F_1$$ F 1 score = 0.81 and MAE = 3.09). Also, the introduction of weight maps contribute to enhance performances, especially in presence of clumping cells, artifacts and confounding biological structures. Posterior qualitative assessment by domain experts corroborates previous results, suggesting human-level performance inasmuch even erroneous predictions seem to fall within the limits of operator interpretation. Finally, we release the pre-trained model and the annotated dataset to foster research in this and related fields. |
format |
article |
author |
Roberto Morelli Luca Clissa Roberto Amici Matteo Cerri Timna Hitrec Marco Luppi Lorenzo Rinaldi Fabio Squarcio Antonio Zoccoli |
author_facet |
Roberto Morelli Luca Clissa Roberto Amici Matteo Cerri Timna Hitrec Marco Luppi Lorenzo Rinaldi Fabio Squarcio Antonio Zoccoli |
author_sort |
Roberto Morelli |
title |
Automating cell counting in fluorescent microscopy through deep learning with c-ResUnet |
title_short |
Automating cell counting in fluorescent microscopy through deep learning with c-ResUnet |
title_full |
Automating cell counting in fluorescent microscopy through deep learning with c-ResUnet |
title_fullStr |
Automating cell counting in fluorescent microscopy through deep learning with c-ResUnet |
title_full_unstemmed |
Automating cell counting in fluorescent microscopy through deep learning with c-ResUnet |
title_sort |
automating cell counting in fluorescent microscopy through deep learning with c-resunet |
publisher |
Nature Portfolio |
publishDate |
2021 |
url |
https://doaj.org/article/6ead4c94f6484e7f9793ae43d1f5239f |
work_keys_str_mv |
AT robertomorelli automatingcellcountinginfluorescentmicroscopythroughdeeplearningwithcresunet AT lucaclissa automatingcellcountinginfluorescentmicroscopythroughdeeplearningwithcresunet AT robertoamici automatingcellcountinginfluorescentmicroscopythroughdeeplearningwithcresunet AT matteocerri automatingcellcountinginfluorescentmicroscopythroughdeeplearningwithcresunet AT timnahitrec automatingcellcountinginfluorescentmicroscopythroughdeeplearningwithcresunet AT marcoluppi automatingcellcountinginfluorescentmicroscopythroughdeeplearningwithcresunet AT lorenzorinaldi automatingcellcountinginfluorescentmicroscopythroughdeeplearningwithcresunet AT fabiosquarcio automatingcellcountinginfluorescentmicroscopythroughdeeplearningwithcresunet AT antoniozoccoli automatingcellcountinginfluorescentmicroscopythroughdeeplearningwithcresunet |
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1718408022351413248 |