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Deep unsupervised representation learning has recently led to new approaches in the field of Unsupervised Anomaly Detection (UAD) in brain MRI. The main principle behind these works is to learn a model of normal anatomy by learning to…

Image and Video Processing · Electrical Eng. & Systems 2020-04-09 Christoph Baur , Stefan Denner , Benedikt Wiestler , Shadi Albarqouni , Nassir Navab

Anomaly detection from graph data has drawn much attention due to its practical significance in many critical applications including cybersecurity, finance, and social networks. Existing data mining and machine learning methods are either…

Machine Learning · Computer Science 2022-01-25 Yu Zheng , Ming Jin , Yixin Liu , Lianhua Chi , Khoa T. Phan , Yi-Ping Phoebe Chen

Semi-supervised learning (SSL), which aims at leveraging a few labeled images and a large number of unlabeled images for network training, is beneficial for relieving the burden of data annotation in medical image segmentation. According to…

Image and Video Processing · Electrical Eng. & Systems 2022-02-15 Xinkai Zhao , Chaowei Fang , De-Jun Fan , Xutao Lin , Feng Gao , Guanbin Li

Task-specific deep learning models in histopathology offer promising opportunities for improving diagnosis, clinical research, and precision medicine. However, development of such models is often limited by availability of high-quality…

Vision transformers, with their ability to more efficiently model long-range context, have demonstrated impressive accuracy gains in several computer vision and medical image analysis tasks including segmentation. However, such methods need…

Image and Video Processing · Electrical Eng. & Systems 2022-09-27 Jue Jiang , Neelam Tyagi , Kathryn Tringale , Christopher Crane , Harini Veeraraghavan

Recent research at CHU Sainte Justine's Pediatric Critical Care Unit (PICU) has revealed that traditional machine learning methods, such as semi-supervised label propagation and K-nearest neighbors, outperform Transformer-based models in…

Machine Learning · Computer Science 2025-05-27 Thanh-Dung Le , Clara Macabiau , Kévin Albert , Philippe Jouvet , Rita Noumeir

The integration of Artificial Intelligence (AI) into clinical research has great potential to reveal patterns that are difficult for humans to detect, creating impactful connections between inputs and clinical outcomes. However, these…

Automatic histopathology image segmentation is crucial to disease analysis. Limited available labeled data hinders the generalizability of trained models under the fully supervised setting. Semi-supervised learning (SSL) based on generative…

Computer Vision and Pattern Recognition · Computer Science 2020-12-18 Hongxiao Wang , Hao Zheng , Jianxu Chen , Lin Yang , Yizhe Zhang , Danny Z. Chen

Recent advances in whole-slide image (WSI) scanners and computational capabilities have significantly propelled the application of artificial intelligence in histopathology slide analysis. While these strides are promising, current…

Computer Vision and Pattern Recognition · Computer Science 2023-11-15 Weiyi Wu , Chongyang Gao , Joseph DiPalma , Soroush Vosoughi , Saeed Hassanpour

Discovery of sensitive and biologically grounded biomarkers is essential for early detection and monitoring of Alzheimer's disease (AD). Structural MRI is widely available but typically relies on hand-crafted features such as cortical…

Many successful methods developed for medical image analysis that are based on machine learning use supervised learning approaches, which often require large datasets annotated by experts to achieve high accuracy. However, medical data…

Computer Vision and Pattern Recognition · Computer Science 2022-07-25 Banafshe Felfeliyan , Abhilash Hareendranathan , Gregor Kuntze , David Cornell , Nils D. Forkert , Jacob L. Jaremko , Janet L. Ronsky

In semi-supervised learning, unlabeled samples can be utilized through augmentation and consistency regularization. However, we observed certain samples, even undergoing strong augmentation, are still correctly classified with high…

Computer Vision and Pattern Recognition · Computer Science 2023-09-08 Guan Gui , Zhen Zhao , Lei Qi , Luping Zhou , Lei Wang , Yinghuan Shi

In medical image analysis, the cost of acquiring high-quality data and their annotation by experts is a barrier in many medical applications. Most of the techniques used are based on supervised learning framework and need a large amount of…

Computer Vision and Pattern Recognition · Computer Science 2022-10-20 Siladittya Manna , Saumik Bhattacharya , Umapada Pal

Self-supervised learning (SSL), which aims to learn meaningful prior representations from unlabeled data, has been proven effective for skeleton-based action understanding. Different from the image domain, skeleton data possesses sparser…

Computer Vision and Pattern Recognition · Computer Science 2025-12-29 Jiahang Zhang , Lilang Lin , Shuai Yang , Jiaying Liu

Self-supervised learning (SSL) enables learning useful inductive biases through utilizing pretext tasks that require no labels. The unlabeled nature of SSL makes it especially important for whole slide histopathological images (WSIs), where…

Computer Vision and Pattern Recognition · Computer Science 2022-11-15 Wisdom Oluchi Ikezogwo , Mehmet Saygin Seyfioglu , Linda Shapiro

The availability of large scale data with high quality ground truth labels is a challenge when developing supervised machine learning solutions for healthcare domain. Although, the amount of digital data in clinical workflows is increasing,…

Image and Video Processing · Electrical Eng. & Systems 2022-08-31 Sara Atito , Syed Muhammad Anwar , Muhammad Awais , Josef Kitler

Semi-supervised anomaly detection (SSAD) methods have demonstrated their effectiveness in enhancing unsupervised anomaly detection (UAD) by leveraging few-shot but instructive abnormal instances. However, the dominance of homogeneous normal…

Machine Learning · Computer Science 2023-09-07 Yixuan Zhou , Peiyu Yang , Yi Qu , Xing Xu , Zhe Sun , Andrzej Cichocki

Self-supervised pretraining followed by supervised fine-tuning has seen success in image recognition, especially when labeled examples are scarce, but has received limited attention in medical image analysis. This paper studies the…

In medical image segmentation, supervised deep networks' success comes at the cost of requiring abundant labeled data. While asking domain experts to annotate only one or a few of the cohort's images is feasible, annotating all available…

Computer Vision and Pattern Recognition · Computer Science 2021-10-06 Devavrat Tomar , Behzad Bozorgtabar , Manana Lortkipanidze , Guillaume Vray , Mohammad Saeed Rad , Jean-Philippe Thiran

Recently, a few self-supervised representation learning (SSL) methods have outperformed the ImageNet classification pre-training for vision tasks such as object detection. However, its effects on 3D human body pose and shape estimation…

Computer Vision and Pattern Recognition · Computer Science 2023-03-10 Hongsuk Choi , Hyeongjin Nam , Taeryung Lee , Gyeongsik Moon , Kyoung Mu Lee