Mixed-Sized Biomedical Image Segmentation Based on U-Net Architectures

Convolutional neural networks (CNNs) are becoming increasingly popular in medical Image Segmentation. Among them, U-Net is a widely used model that can lead to cutting-edge results for 2D biomedical Image Segmentation. However, U-Net performance can be influenced by many factors, such as the size of...

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Main Authors: Priscilla Benedetti, Mauro Femminella, Gianluca Reali
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/13/1/329
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author Priscilla Benedetti
Mauro Femminella
Gianluca Reali
author_facet Priscilla Benedetti
Mauro Femminella
Gianluca Reali
author_sort Priscilla Benedetti
collection DOAJ
description Convolutional neural networks (CNNs) are becoming increasingly popular in medical Image Segmentation. Among them, U-Net is a widely used model that can lead to cutting-edge results for 2D biomedical Image Segmentation. However, U-Net performance can be influenced by many factors, such as the size of the training dataset, the performance metrics used, the quality of the images and, in particular, the shape and size of the organ to be segmented. This could entail a loss of robustness of the U-Net-based models. In this paper, the performance of the considered networks is determined by using the publicly available images from the 3D-IRCADb-01 dataset. Different organs with different features are considered. Experimental results show that the U-Net-based segmentation performance decreases when organs with sparse binary masks are considered. The solution proposed in this paper, based on automated zooming of the parts of interest, allows improving the performance of the segmentation model by up to 20% in terms of Dice coefficient metric, when very sparse segmentation images are used, without affecting the cost of the learning process.
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spelling doaj.art-f1e999c7705b44e092929b0dab0d06c42023-11-16T14:55:30ZengMDPI AGApplied Sciences2076-34172022-12-0113132910.3390/app13010329Mixed-Sized Biomedical Image Segmentation Based on U-Net ArchitecturesPriscilla Benedetti0Mauro Femminella1Gianluca Reali2Department of Engineering, University of Perugia, Via G. Duranti 93, 06125 Perugia, ItalyDepartment of Engineering, University of Perugia, Via G. Duranti 93, 06125 Perugia, ItalyDepartment of Engineering, University of Perugia, Via G. Duranti 93, 06125 Perugia, ItalyConvolutional neural networks (CNNs) are becoming increasingly popular in medical Image Segmentation. Among them, U-Net is a widely used model that can lead to cutting-edge results for 2D biomedical Image Segmentation. However, U-Net performance can be influenced by many factors, such as the size of the training dataset, the performance metrics used, the quality of the images and, in particular, the shape and size of the organ to be segmented. This could entail a loss of robustness of the U-Net-based models. In this paper, the performance of the considered networks is determined by using the publicly available images from the 3D-IRCADb-01 dataset. Different organs with different features are considered. Experimental results show that the U-Net-based segmentation performance decreases when organs with sparse binary masks are considered. The solution proposed in this paper, based on automated zooming of the parts of interest, allows improving the performance of the segmentation model by up to 20% in terms of Dice coefficient metric, when very sparse segmentation images are used, without affecting the cost of the learning process.https://www.mdpi.com/2076-3417/13/1/329Image Segmentationconvolutional neural networksbiomedical image analysis
spellingShingle Priscilla Benedetti
Mauro Femminella
Gianluca Reali
Mixed-Sized Biomedical Image Segmentation Based on U-Net Architectures
Applied Sciences
Image Segmentation
convolutional neural networks
biomedical image analysis
title Mixed-Sized Biomedical Image Segmentation Based on U-Net Architectures
title_full Mixed-Sized Biomedical Image Segmentation Based on U-Net Architectures
title_fullStr Mixed-Sized Biomedical Image Segmentation Based on U-Net Architectures
title_full_unstemmed Mixed-Sized Biomedical Image Segmentation Based on U-Net Architectures
title_short Mixed-Sized Biomedical Image Segmentation Based on U-Net Architectures
title_sort mixed sized biomedical image segmentation based on u net architectures
topic Image Segmentation
convolutional neural networks
biomedical image analysis
url https://www.mdpi.com/2076-3417/13/1/329
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AT maurofemminella mixedsizedbiomedicalimagesegmentationbasedonunetarchitectures
AT gianlucareali mixedsizedbiomedicalimagesegmentationbasedonunetarchitectures