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Image segmentation, the process of partitioning an image into meaningful regions, plays a pivotal role in computer vision and medical imaging applications. Unsupervised segmentation, particularly in the absence of labeled data, remains a…

Computer Vision and Pattern Recognition · Computer Science 2024-05-13 Kovvuri Sai Gopal Reddy , Bodduluri Saran , A. Mudit Adityaja , Saurabh J. Shigwan , Nitin Kumar

Precise segmentation of objects with highly similar shapes remains a challenging problem in dense prediction, especially in scenarios with ambiguous boundaries, overlapping instances, and weak inter-instance visual differences. While…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Rui Xiao

This study explores the potential of graph neural networks (GNNs) to enhance semantic segmentation across diverse image modalities. We evaluate the effectiveness of a novel GNN-based U-Net architecture on three distinct datasets: PascalVOC,…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Aryan Singh , Pepijn Van de Ven , Ciarán Eising , Patrick Denny

Equipping predicted segmentation with calibrated uncertainty is essential for safety-critical applications. In this work, we focus on capturing the data-inherent uncertainty (aka aleatoric uncertainty) in segmentation, typically when…

Computer Vision and Pattern Recognition · Computer Science 2023-02-28 Zhitong Gao , Yucong Chen , Chuyu Zhang , Xuming He

Each medical segmentation task should be considered with a specific AI algorithm based on its scenario so that the most accurate prediction model can be obtained. The most popular algorithms in medical segmentation, 3D U-Net and its…

Computer Vision and Pattern Recognition · Computer Science 2024-02-13 Shiyi Wang , Yang Nan , Felder Federico N , Sheng Zhang , Walsh Simon L F , Guang Yang

Recently, the state-of-art models for medical image segmentation is U-Net and their variants. These networks, though succeeding in deriving notable results, ignore the practical problem hanging over the medical segmentation field:…

Image and Video Processing · Electrical Eng. & Systems 2025-01-07 Hao Ziang , Jingsi Zhang , Lixian Li

Fluctuations of the glacier calving front have an important influence over the ice flow of whole glacier systems. It is therefore important to precisely monitor the position of the calving front. However, the manual delineation of SAR…

Machine Learning · Computer Science 2021-05-05 Andreas Hartmann , Amirabbas Davari , Thorsten Seehaus , Matthias Braun , Andreas Maier , Vincent Christlein

We propose a new generative adversarial architecture to mitigate imbalance data problem in medical image semantic segmentation where the majority of pixels belongs to a healthy region and few belong to lesion or non-health region. A model…

Computer Vision and Pattern Recognition · Computer Science 2018-10-10 Mina Rezaei , Haojin Yang , Christoph Meinel

Ultrasound (US) image segmentation embraced its significant improvement in deep learning era. However, the lack of sharp boundaries in US images still remains an inherent challenge for segmentation. Previous methods often resort to global…

Image and Video Processing · Electrical Eng. & Systems 2020-10-13 Haoming Li , Xin Yang , Jiamin Liang , Wenlong Shi , Chaoyu Chen , Haoran Dou , Rui Li , Rui Gao , Guangquan Zhou , Jinghui Fang , Xiaowen Liang , Ruobing Huang , Alejandro Frangi , Zhiyi Chen , Dong Ni

Inverse problems, such as accelerated MRI reconstruction, are ill-posed and an infinite amount of possible and plausible solutions exist. This may not only lead to uncertainty in the reconstructed image but also in downstream tasks such as…

Image and Video Processing · Electrical Eng. & Systems 2024-07-26 Jan Nikolas Morshuis , Matthias Hein , Christian F. Baumgartner

Semantic segmentation is a fundamental computer vision task with a vast number of applications. State of the art methods increasingly rely on deep learning models, known to incorrectly estimate uncertainty and being overconfident in…

Computer Vision and Pattern Recognition · Computer Science 2024-07-18 Luís Almeida , Inês Dutra , Francesco Renna

Collecting annotations from multiple independent sources could mitigate the impact of potential noises and biases from a single source, which is a common practice in medical image segmentation. Learning segmentation networks from…

Image and Video Processing · Electrical Eng. & Systems 2023-11-14 Yifeng Wang , Luyang Luo , Mingxiang Wu , Qiong Wang , Hao Chen

In this paper, we introduce a conceptually simple network for generating discriminative tissue-level segmentation masks for the purpose of breast cancer diagnosis. Our method efficiently segments different types of tissues in breast biopsy…

Computer Vision and Pattern Recognition · Computer Science 2018-06-06 Sachin Mehta , Ezgi Mercan , Jamen Bartlett , Donald Weave , Joann G. Elmore , Linda Shapiro

Machine-based brain tumor segmentation can help doctors make better diagnoses. However, the complex structure of brain tumors and expensive pixel-level annotations present challenges for automatic tumor segmentation. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2024-08-05 Ruitao Xie , Limai Jiang , Xiaoxi He , Yi Pan , Yunpeng Cai

In this work, a novel approach for the construction and training of time series models is presented that deals with the problem of learning on large time series with non-equispaced observations, which at the same time may possess features…

Machine Learning · Computer Science 2020-11-25 Charilaos Mylonas , Eleni Chatzi

We propose the Generalized Probabilistic U-Net, which extends the Probabilistic U-Net by allowing more general forms of the Gaussian distribution as the latent space distribution that can better approximate the uncertainty in the reference…

Computer Vision and Pattern Recognition · Computer Science 2022-07-27 Ishaan Bhat , Josien P. W. Pluim , Hugo J. Kuijf

Semantic segmentation of medical images is pivotal in applications like disease diagnosis and treatment planning. While deep learning has excelled in automating this task, a major hurdle is the need for numerous annotated segmentation…

Image and Video Processing · Electrical Eng. & Systems 2024-09-02 Li Zhang , Basu Jindal , Ahmed Alaa , Robert Weinreb , David Wilson , Eran Segal , James Zou , Pengtao Xie

Image segmentation is a critical step in computational biomedical image analysis, typically evaluated using metrics like the Dice coefficient during training and validation. However, in clinical settings without manual annotations,…

Computer Vision and Pattern Recognition · Computer Science 2025-08-05 Sikha O K , Meritxell Riera-Marín , Adrian Galdran , Javier García Lopez , Julia Rodríguez-Comas , Gemma Piella , Miguel A. González Ballester

The accurate estimation of predictive uncertainty carries importance in medical scenarios such as lung node segmentation. Unfortunately, most existing works on predictive uncertainty do not return calibrated uncertainty estimates, which…

Machine Learning · Computer Science 2022-05-31 Shi Hu , Daniel Worrall , Stefan Knegt , Bas Veeling , Henkjan Huisman , Max Welling

The use of deep learning for medical imaging has seen tremendous growth in the research community. One reason for the slow uptake of these systems in the clinical setting is that they are complex, opaque and tend to fail silently. Outside…

Computer Vision and Pattern Recognition · Computer Science 2018-07-03 Terrance DeVries , Graham W. Taylor