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Existing self-supervised learning methods based on contrastive learning and masked image modeling have demonstrated impressive performances. However, current masked image modeling methods are mainly utilized in natural images, and their…

Computer Vision and Pattern Recognition · Computer Science 2023-02-28 Xiangtao Wang , Ruizhi Wang , Biao Tian , Jiaojiao Zhang , Shuo Zhang , Junyang Chen , Thomas Lukasiewicz , Zhenghua Xu

The application of self-supervised techniques has become increasingly prevalent within medical visualization tasks, primarily due to its capacity to mitigate the data scarcity prevalent in the healthcare sector. The majority of current…

Computer Vision and Pattern Recognition · Computer Science 2025-09-09 Yiqin Zhang , Meiling Chen , Zhengjie Zhang

To make sense of their surroundings, intelligent systems must transform complex sensory inputs to structured codes that are reduced to task-relevant information such as object category. Biological agents achieve this in a largely autonomous…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Robin Weiler , Matthias Brucklacher , Cyriel M. A. Pennartz , Sander M. Bohté

Mask-based pretraining has become a cornerstone of modern large-scale models across language, vision, and recently biology. Despite its empirical success, its role and limits in learning data representations have been unclear. In this work,…

Machine Learning · Computer Science 2025-09-29 Mingze Dong , Leda Wang , Yuval Kluger

Segmenting an image into its parts is a frequent preprocess for high-level vision tasks such as image editing. However, annotating masks for supervised training is expensive. Weakly-supervised and unsupervised methods exist, but they depend…

Computer Vision and Pattern Recognition · Computer Science 2022-10-11 Xingzhe He , Bastian Wandt , Helge Rhodin

Self-supervised learning is an efficient pre-training method for medical image analysis. However, current research is mostly confined to specific-modality data pre-training, consuming considerable time and resources without achieving…

Computer Vision and Pattern Recognition · Computer Science 2023-12-01 Yiwen Ye , Yutong Xie , Jianpeng Zhang , Ziyang Chen , Qi Wu , Yong Xia

Foundation models in healthcare have largely adopted self supervised pretraining objectives inherited from natural language processing and computer vision, emphasizing reconstruction and large scale representation learning prior to…

Machine Learning · Computer Science 2026-03-24 Yang Zhang , Li Fan , Samuel Lawrence , Shi Li

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

Understanding 3D medical image volumes is critical in the medical field, yet existing 3D medical convolution and transformer-based self-supervised learning (SSL) methods often lack deep semantic comprehension. Recent advancements in…

Computer Vision and Pattern Recognition · Computer Science 2025-09-12 Qiuhui Chen , Xuancheng Yao , Huping Ye , Yi Hong

Foundation models have been successful in natural language processing and computer vision because they are capable of capturing the underlying structures (foundation) of natural languages. However, in medical imaging, the key foundation…

Computer Vision and Pattern Recognition · Computer Science 2026-01-05 Ziyu Zhou , Haozhe Luo , Mohammad Reza Hosseinzadeh Taher , Jiaxuan Pang , Xiaowei Ding , Michael B. Gotway , Jianming Liang

Medical image segmentation is vital for modern healthcare and is a key element of computer-aided diagnosis. While recent advancements in computer vision have explored unsupervised segmentation using pre-trained models, these methods have…

Computer Vision and Pattern Recognition · Computer Science 2025-08-07 Mosong Ma , Tania Stathaki , Michalis Lazarou

The need for a large amount of labeled data in the supervised setting has led recent studies to utilize self-supervised learning to pre-train deep neural networks using unlabeled data. Many self-supervised training strategies have been…

Computer Vision and Pattern Recognition · Computer Science 2022-04-06 Mojtaba Bahrami , Mahsa Ghorbani , Nassir Navab

Semi-supervised learning is of great significance in medical image segmentation by exploiting unlabeled data. Among its strategies, the co-training framework is prominent. However, previous co-training studies predominantly concentrate on…

Computer Vision and Pattern Recognition · Computer Science 2025-03-19 Pengcheng Zhou , Lantian Zhang , Wei Li

Masked autoencoder (MAE) is a promising self-supervised pre-training technique that can improve the representation learning of a neural network without human intervention. However, applying MAE directly to volumetric medical images poses…

Computer Vision and Pattern Recognition · Computer Science 2023-08-24 Jia-Xin Zhuang , Luyang Luo , Hao Chen

Foundation models pretrained on large-scale datasets via self-supervised learning demonstrate exceptional versatility across various tasks. Due to the heterogeneity and hard-to-collect medical data, this approach is especially beneficial…

Computational Engineering, Finance, and Science · Computer Science 2024-03-05 Yanwu Yang , Chenfei Ye , Guinan Su , Ziyao Zhang , Zhikai Chang , Hairui Chen , Piu Chan , Yue Yu , Ting Ma

Although self-supervised learning enables us to bootstrap the training by exploiting unlabeled data, the generic self-supervised methods for natural images do not sufficiently incorporate the context. For medical images, a desirable method…

Image and Video Processing · Electrical Eng. & Systems 2022-07-08 Li Sun , Ke Yu , Kayhan Batmanghelich

Following the successful paradigm shift of large language models, leveraging pre-training on a massive corpus of data and fine-tuning on different downstream tasks, generalist models have made their foray into computer vision. The…

Image and Video Processing · Electrical Eng. & Systems 2025-11-21 Andrea Moglia , Matteo Leccardi , Matteo Cavicchioli , Alice Maccarini , Marco Marcon , Luca Mainardi , Pietro Cerveri

Self-supervised learning (SSL) has emerged as a promising paradigm for addressing the annotation bottleneck in medical imaging by learning representations from unlabeled data. However, its effectiveness depends heavily on the design of the…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Chathura Wimalasiri

Training deep learning models for three-dimensional (3D) medical imaging, such as Computed Tomography (CT), is fundamentally challenged by the scarcity of labeled data. While pre-training on natural images is common, it results in a…

Self-attention is of vital importance in semantic segmentation as it enables modeling of long-range context, which translates into improved performance. We argue that it is equally important to model short-range context, especially to…

Computer Vision and Pattern Recognition · Computer Science 2022-12-29 Hasib Zunair , A. Ben Hamza