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The labor-intensive annotation process of semantic segmentation datasets is often prone to errors, since humans struggle to label every pixel correctly. We study algorithms to automatically detect such annotation errors, in particular…

Machine Learning · Computer Science 2023-07-12 Vedang Lad , Jonas Mueller

Improving label quality in medical image segmentation is costly, but its benefits remain unclear. We systematically evaluate its impact using multiple pseudo-labeled versions of CT datasets, generated by models like nnU-Net,…

Computer Vision and Pattern Recognition · Computer Science 2025-05-28 Alexander Jaus , Zdravko Marinov , Constantin Seibold , Simon Reiß , Jens Kleesiek , Rainer Stiefelhagen

Auto-annotation by ensemble of models is an efficient method of learning on unlabeled data. Wrong or inaccurate annotations generated by the ensemble may lead to performance degradation of the trained model. To deal with this problem we…

Computer Vision and Pattern Recognition · Computer Science 2024-03-14 Dror Simon , Miriam Farber , Roman Goldenberg

High-quality pixel-level annotations are essential for the semantic segmentation of remote sensing imagery. However, such labels are expensive to obtain and often affected by noise due to the labor-intensive and time-consuming nature of…

As medical datasets rapidly expand, creating detailed annotations of different body structures becomes increasingly expensive and time-consuming. We consider that requesting radiologists to create detailed annotations is unnecessarily…

Computer Vision and Pattern Recognition · Computer Science 2024-11-06 Pedro R. A. S. Bassi , Qilong Wu , Wenxuan Li , Sergio Decherchi , Andrea Cavalli , Alan Yuille , Zongwei Zhou

In this work, we for the first time present a method for detecting label errors in image datasets with semantic segmentation, i.e., pixel-wise class labels. Annotation acquisition for semantic segmentation datasets is time-consuming and…

Computer Vision and Pattern Recognition · Computer Science 2024-08-27 Matthias Rottmann , Marco Reese

Deep learning methods have achieved promising performance in many areas, but they are still struggling with noisy-labeled images during the training process. Considering that the annotation quality indispensably relies on great expertise,…

Computer Vision and Pattern Recognition · Computer Science 2019-07-30 Haidong Zhu , Jialin Shi , Ji Wu

Large-scale medical segmentation datasets often combine manual and pseudo-labels of uneven quality, which can compromise training and evaluation. Low-quality labels may hamper performance and make the model training less robust. To address…

Computer Vision and Pattern Recognition · Computer Science 2026-01-22 Yixiong Chen , Zongwei Zhou , Wenxuan Li , Alan Yuille

Segment anything model (SAM) has emerged as the leading approach for zero-shot learning in segmentation tasks, offering the advantage of avoiding pixel-wise annotations. It is particularly appealing in medical image segmentation, where the…

Image and Video Processing · Electrical Eng. & Systems 2023-12-29 Ziyi Huang , Hongshan Liu , Haofeng Zhang , Xueshen Li , Haozhe Liu , Fuyong Xing , Andrew Laine , Elsa Angelini , Christine Hendon , Yu Gan

Organ segmentation of medical images is a key step in virtual imaging trials. However, organ segmentation datasets are limited in terms of quality (because labels cover only a few organs) and quantity (since case numbers are limited). In…

Image and Video Processing · Electrical Eng. & Systems 2022-03-07 Fakrul Islam Tushar , Husam Nujaim , Wanyi Fu , Ehsan Abadi , Maciej A. Mazurowski , Ehsan Samei , William P. Segars , Joseph Y. Lo

Segmentation of objects of interest is one of the central tasks in medical image analysis, which is indispensable for quantitative analysis. When developing machine-learning based methods for automated segmentation, manual annotations are…

Computer Vision and Pattern Recognition · Computer Science 2020-07-20 Hang Li , Dong Wei , Shilei Cao , Kai Ma , Liansheng Wang , Yefeng Zheng

Current methods focusing on medical image segmentation suffer from incorrect annotations, which is known as the noisy label issue. Most medical image segmentation with noisy labels methods utilize either noise transition matrix,…

Computer Vision and Pattern Recognition · Computer Science 2023-11-29 Zicheng Wang , Zhen Zhao , Erjian Guo , Luping Zhou

The field of medical image segmentation is hindered by the scarcity of large, publicly available annotated datasets. Not all datasets are made public for privacy reasons, and creating annotations for a large dataset is time-consuming and…

Computer Vision and Pattern Recognition · Computer Science 2024-10-01 Iira Häkkinen , Iaroslav Melekhov , Erik Englesson , Hossein Azizpour , Juho Kannala

Imperfections in data annotation, known as label noise, are detrimental to the training of machine learning models and have an often-overlooked confounding effect on the assessment of model performance. Nevertheless, employing experts to…

Pre-training a recognition model with contrastive learning on a large dataset of unlabeled data has shown great potential to boost the performance of a downstream task, e.g., image classification. However, in domains such as medical…

Computer Vision and Pattern Recognition · Computer Science 2021-08-24 Jizong Peng , Ping Wang , Chrisitian Desrosiers , Marco Pedersoli

In medical imaging, inter-observer variability among radiologists often introduces label uncertainty, particularly in modalities where visual interpretation is subjective. Lung ultrasound (LUS) is a prime example-it frequently presents a…

Training neural networks using limited annotations is an important problem in the medical domain. Deep Neural Networks (DNNs) typically require large, annotated datasets to achieve acceptable performance which, in the medical domain, are…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Bethany H. Thompson , Gaetano Di Caterina , Jeremy P. Voisey

Semantic segmentation is a crucial task in medical imaging. Although supervised learning techniques have proven to be effective in performing this task, they heavily depend on large amounts of annotated training data. The recently…

Computer Vision and Pattern Recognition · Computer Science 2024-11-20 Ron Keuth , Lasse Hansen , Maren Balks , Ronja Jäger , Anne-Nele Schröder , Ludger Tüshaus , Mattias Heinrich

Partly due to the use of exhaustive-annotated data, deep networks have achieved impressive performance on medical image segmentation. Medical imaging data paired with noisy annotation are, however, ubiquitous, but little is known about the…

Image and Video Processing · Electrical Eng. & Systems 2020-03-16 Shaode Yu , Erlei Zhang , Junjie Wu , Hang Yu , Zi Yang , Lin Ma , Mingli Chen , Xuejun Gu , Weiguo Lu

Annotating images for semantic segmentation requires intense manual labor and is a time-consuming and expensive task especially for domains with a scarcity of experts, such as Forensic Anthropology. We leverage the evolving nature of images…

Computer Vision and Pattern Recognition · Computer Science 2021-05-24 Sara Mousavi , Zhenning Yang , Kelley Cross , Dawnie Steadman , Audris Mockus
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