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Learning inter-image similarity is crucial for 3D medical images self-supervised pre-training, due to their sharing of numerous same semantic regions. However, the lack of the semantic prior in metrics and the semantic-independent variation…

Computer Vision and Pattern Recognition · Computer Science 2023-03-03 Yuting He , Guanyu Yang , Rongjun Ge , Yang Chen , Jean-Louis Coatrieux , Boyu Wang , Shuo Li

This paper presents a novel unsupervised segmentation method for 3D medical images. Convolutional neural networks (CNNs) have brought significant advances in image segmentation. However, most of the recent methods rely on supervised…

Computer Vision and Pattern Recognition · Computer Science 2018-04-13 Takayasu Moriya , Holger R. Roth , Shota Nakamura , Hirohisa Oda , Kai Nagara , Masahiro Oda , Kensaku Mori

3D pre-training is crucial to 3D perception tasks. Nevertheless, limited by the difficulties in collecting clean and complete 3D data, 3D pre-training has persistently faced data scaling challenges. In this work, we introduce a novel…

Computer Vision and Pattern Recognition · Computer Science 2025-05-22 Xuechao Chen , Ying Chen , Jialin Li , Qiang Nie , Hanqiu Deng , Yong Liu , Qixing Huang , Yang Li

Self-supervised pretraining has become the mainstream approach for learning MRI representations from unlabeled scans. However, most existing objectives still treat each scan primarily as static aggregations of slices, patches or volumes. We…

Computer Vision and Pattern Recognition · Computer Science 2026-05-08 Yu Wang , Qingchao Chen

Magnetic resonance imaging (MRI) is a crucial medical imaging modality. However, long acquisition times remain a significant challenge, leading to increased costs, and reduced patient comfort. Recent studies have shown the potential of…

Computer Vision and Pattern Recognition · Computer Science 2025-07-30 Amirmohammad Shamaei , Alexander Stebner , Salome , Bosshart , Johanna Ospel , Gouri Ginde , Mariana Bento , Roberto Souza

3D reconstruction of medical images is a key technology in medical image analysis and clinical diagnosis, providing structural visualization support for disease assessment and surgical planning. Traditional methods are computationally…

Computer Vision and Pattern Recognition · Computer Science 2025-12-30 Bin Liu , Wenyan Tian , Huangxin Fu , Zizheng Li , Zhifen He , Bo Li

Self-supervised learning has greatly facilitated medical image analysis by suppressing the training data requirement for real-world applications. Current paradigms predominantly rely on self-supervision within uni-modal image data, thereby…

Computer Vision and Pattern Recognition · Computer Science 2025-03-31 Shaohao Rui , Lingzhi Chen , Zhenyu Tang , Lilong Wang , Mianxin Liu , Shaoting Zhang , Xiaosong Wang

3D ultrasound (US) is widely used for its rich diagnostic information. However, it is criticized for its limited field of view. 3D freehand US reconstruction is promising in addressing the problem by providing broad range and freeform scan.…

Computer Vision and Pattern Recognition · Computer Science 2021-08-19 Mingyuan Luo , Xin Yang , Xiaoqiong Huang , Yuhao Huang , Yuxin Zou , Xindi Hu , Nishant Ravikumar , Alejandro F Frangi , Dong Ni

Learning robust and effective representations of visual data is a fundamental task in computer vision. Traditionally, this is achieved by training models with labeled data which can be expensive to obtain. Self-supervised learning attempts…

Computer Vision and Pattern Recognition · Computer Science 2024-06-05 Mehmet Aygün , Prithviraj Dhar , Zhicheng Yan , Oisin Mac Aodha , Rakesh Ranjan

This paper demonstrates a self-supervised framework for learning voxel-wise coarse-to-fine representations tailored for dense downstream tasks. Our approach stems from the observation that existing methods for hierarchical representation…

Computer Vision and Pattern Recognition · Computer Science 2024-05-28 Eytan Kats , Jochen G. Hirsch , Mattias P. Heinrich

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

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

Purpose: The aim of this work is to develop a neural network training framework for continual training of small amounts of medical imaging data and create heuristics to assess training in the absence of a hold-out validation or test set.…

Image and Video Processing · Electrical Eng. & Systems 2023-09-27 Sohaib Naim , Brian Caffo , Haris I Sair , Craig K Jones

Generative models have emerged as powerful tools in medical imaging, enabling tasks such as segmentation, anomaly detection, and high-quality synthetic data generation. These models typically rely on learning meaningful latent…

Computer Vision and Pattern Recognition · Computer Science 2026-02-17 Jordi Malé , Juan Fortea , Mateus Rozalem-Aranha , Neus Martínez-Abadías , Xavier Sevillano

Magnetic Resonance Imaging (MRI) plays a vital role in diagnosis, management and monitoring of many diseases. However, it is an inherently slow imaging technique. Over the last 20 years, parallel imaging, temporal encoding and compressed…

Medical image generation is pivotal in applications like data augmentation for low-resource clinical tasks and privacy-preserving data sharing. However, developing a scalable generative backbone for medical imaging requires architectural…

Computer Vision and Pattern Recognition · Computer Science 2026-02-24 Zhicheng He , Yunpeng Zhao , Junde Wu , Ziwei Niu , Zijun Li , Bohan Li , Lanfen Lin , Yueming Jin

Autoregressive image modeling relies on visual tokenizers to compress images into compact latent representations. We design an end-to-end training pipeline that jointly optimizes reconstruction and generation, enabling direct supervision…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Wenda Chu , Bingliang Zhang , Jiaqi Han , Yizhuo Li , Linjie Yang , Yisong Yue , Qiushan Guo

Computer-aided medical image analysis plays a significant role in assisting medical practitioners for expert clinical diagnosis and deciding the optimal treatment plan. At present, convolutional neural networks (CNN) are the preferred…

Image and Video Processing · Electrical Eng. & Systems 2022-04-29 S Niyas , S J Pawan , M Anand Kumar , Jeny Rajan

This paper investigates a 2D to 3D image translation method with a straightforward technique, enabling correlated 2D X-ray to 3D CT-like reconstruction. We observe that existing approaches, which integrate information across multiple 2D…

Computer Vision and Pattern Recognition · Computer Science 2024-06-27 Abril Corona-Figueroa , Hubert P. H. Shum , Chris G. Willcocks

Self-supervised learning has emerged as a powerful tool for pretraining deep networks on unlabeled data, prior to transfer learning of target tasks with limited annotation. The relevance between the pretraining pretext and target tasks is…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Tianwei Zhang , Dong Wei , Mengmeng Zhu , Shi Gu , Yefeng Zheng