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Within medical imaging segmentation, the Dice coefficient and Hausdorff-based metrics are standard measures of success for deep learning models. However, modern loss functions for medical image segmentation often only consider the Dice…

Image and Video Processing · Electrical Eng. & Systems 2024-01-26 Adrian Celaya , Beatrice Riviere , David Fuentes

Image segmentation is critically important in almost all medical image analysis for automatic interpretations and processing. However, it is often challenging to perform image segmentation due to data imbalance between intra- and…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Zhhengyong Huang , Yao Sui

Intersection over Union (IoU) losses are surrogates that directly optimize the Jaccard index. Leveraging IoU losses as part of the loss function have demonstrated superior performance in semantic segmentation tasks compared to optimizing…

Computer Vision and Pattern Recognition · Computer Science 2024-03-21 Zifu Wang , Xuefei Ning , Matthew B. Blaschko

The development of automatic segmentation techniques for medical imaging tasks requires assessment metrics to fairly judge and rank such approaches on benchmarks. The Dice Similarity Coefficient (DSC) is a popular choice for comparing the…

Image and Video Processing · Electrical Eng. & Systems 2023-02-13 Vatsal Raina , Nataliia Molchanova , Mara Graziani , Andrey Malinin , Henning Muller , Meritxell Bach Cuadra , Mark Gales

Class imbalance and the difficulty imbalance are the two types of data imbalance that affect the performance of neural networks in medical segmentation tasks. In class imbalance the loss is dominated by the majority classes and in…

Image and Video Processing · Electrical Eng. & Systems 2025-06-23 Seyed Mohsen Hosseini

The segmentation of skin lesions is a crucial task in clinical decision support systems for the computer aided diagnosis of skin lesions. Although deep learning-based approaches have improved segmentation performance, these models are often…

Image and Video Processing · Electrical Eng. & Systems 2021-02-23 Kumar Abhishek , Ghassan Hamarneh

In semantic segmentation, even state-of-the-art deep learning models fall short of the performance required in certain high-stakes applications such as medical image analysis. In these cases, performance can be improved by allowing a model…

Machine Learning · Computer Science 2026-05-26 Bruno Laboissiere Camargos Borges , Bruno Machado Pacheco , Danilo Silva

This paper seeks to address the dense labeling problems where a significant fraction of the dataset can be pruned without sacrificing much accuracy. We observe that, on standard medical image segmentation benchmarks, the loss gradient…

Computer Vision and Pattern Recognition · Computer Science 2023-08-03 Yongkang He , Mingjin Chen , Zhijing Yang , Yongyi Lu

Deep learning-based methods achieved impressive results for the segmentation of medical images. With the development of 3D fully convolutional networks (FCNs), it has become feasible to produce improved results for multi-organ segmentation…

Computer Vision and Pattern Recognition · Computer Science 2018-01-19 Chen Shen , Holger R. Roth , Hirohisa Oda , Masahiro Oda , Yuichiro Hayashi , Kazunari Misawa , Kensaku Mori

Deep learning has led to state-of-the-art results for many medical imaging tasks, such as segmentation of different anatomical structures. With the increased numbers of deep learning publications and openly available code, the approach to…

Image and Video Processing · Electrical Eng. & Systems 2020-05-19 Tom van Sonsbeek , Veronika Cheplygina

The soft Dice loss (SDL) has taken a pivotal role in numerous automated segmentation pipelines in the medical imaging community. Over the last years, some reasons behind its superior functioning have been uncovered and further optimizations…

Computer Vision and Pattern Recognition · Computer Science 2024-03-21 Zifu Wang , Teodora Popordanoska , Jeroen Bertels , Robin Lemmens , Matthew B. Blaschko

Performance measures are an important tool for assessing and comparing different medical image segmentation algorithms. Unfortunately, the current measures have their weaknesses when it comes to assessing certain edge cases. These…

Computer Vision and Pattern Recognition · Computer Science 2022-10-26 Dennis Hartmann , Verena Schmid , Philip Meyer , Iñaki Soto-Rey , Dominik Müller , Frank Kramer

The Jaccard index, also known as Intersection-over-Union (IoU score), is one of the most critical evaluation metrics in medical image segmentation. However, directly optimizing the mean IoU (mIoU) score over multiple objective classes is an…

Computer Vision and Pattern Recognition · Computer Science 2020-11-04 Zhibin Li , Litao Yu , Jian Zhang

Volumetric measurements of fetal structures in MRI are time consuming and error prone and therefore require automatic segmentation. Placenta segmentation and accurate fetal brain segmentation for gyrification assessment are particularly…

Image and Video Processing · Electrical Eng. & Systems 2022-09-27 Bella Specktor Fadida , Bossmat Yehuda , Daphna Link Sourani , Liat Ben Sira , Dafna Ben Bashat , Leo Joskowicz

Validation of image segmentation methods is of critical importance. Probabilistic image segmentation is increasingly popular as it captures uncertainty in the results. Image segmentation methods that support multi-region (as opposed to…

Computer Vision and Pattern Recognition · Computer Science 2015-10-14 Shawn Andrews , Ghassan Hamarneh

Echocardiography (echo) is the first imaging modality used when assessing cardiac function. The measurement of functional biomarkers from echo relies upon the segmentation of cardiac structures and deep learning models have been proposed to…

Computer Vision and Pattern Recognition · Computer Science 2026-04-15 Iman Islam , Esther Puyol-Antón , Bram Ruijsink , Andrew J. Reader , Andrew P. King

In medical image segmentation tasks, the scarcity of labeled training data poses a significant challenge when training deep neural networks. When using U-Net-style architectures, it is common practice to address this problem by pretraining…

Computer Vision and Pattern Recognition · Computer Science 2025-06-09 Gábor Hidy , Bence Bakos , András Lukács

The Dice score is widely used for binary segmentation due to its robustness to class imbalance. Soft generalisations of the Dice score allow it to be used as a loss function for training convolutional neural networks (CNN). Although CNNs…

Computer Vision and Pattern Recognition · Computer Science 2018-02-27 Lucas Fidon , Wenqi Li , Luis C. Garcia-Peraza-Herrera , Jinendra Ekanayake , Neil Kitchen , Sebastien Ourselin , Tom Vercauteren

Quantifying the accuracy of segmentation and manual delineation of organs, tissue types and tumors in medical images is a necessary measurement that suffers from multiple problems. One major shortcoming of all accuracy measures is that they…

Computer Vision and Pattern Recognition · Computer Science 2016-04-19 Hamid R. Tizhoosh , Ahmed A. Othman

Semantic segmentation is an essential component of medical image analysis research, with recent deep learning algorithms offering out-of-the-box applicability across diverse datasets. Despite these advancements, segmentation failures remain…

Computer Vision and Pattern Recognition · Computer Science 2024-10-23 Maximilian Zenk , David Zimmerer , Fabian Isensee , Jeremias Traub , Tobias Norajitra , Paul F. Jäger , Klaus Maier-Hein