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Classical pairwise image registration methods search for a spatial transformation that optimises a numerical measure that indicates how well a pair of moving and fixed images are aligned. Current learning-based registration methods have…

Image and Video Processing · Electrical Eng. & Systems 2019-10-22 Yipeng Hu , Eli Gibson , Dean C. Barratt , Mark Emberton , J. Alison Noble , Tom Vercauteren

Vision-language models (VLMs) pre-trained on large, heterogeneous data sources are becoming increasingly popular, providing rich multi-modal embeddings that enable efficient transfer to new tasks. A particularly relevant application is…

Computer Vision and Pattern Recognition · Computer Science 2026-03-04 Julio Silva-Rodríguez , Ender Konukoglu

Deep learning-based medical image segmentation helps assist diagnosis and accelerate the treatment process while the model training usually requires large-scale dense annotation datasets. Weakly semi-supervised medical image segmentation is…

Computer Vision and Pattern Recognition · Computer Science 2024-11-19 Shiman Li , Jiayue Zhao , Shaolei Liu , Xiaokun Dai , Chenxi Zhang , Zhijian Song

Nuclei segmentation is a fundamental task in histopathology image analysis. Typically, such segmentation tasks require significant effort to manually generate accurate pixel-wise annotations for fully supervised training. To alleviate such…

Computer Vision and Pattern Recognition · Computer Science 2020-07-13 Hui Qu , Pengxiang Wu , Qiaoying Huang , Jingru Yi , Zhennan Yan , Kang Li , Gregory M. Riedlinger , Subhajyoti De , Shaoting Zhang , Dimitris N. Metaxas

We propose a weakly-supervised framework for the semantic segmentation of circular-scan synthetic-aperture-sonar (CSAS) imagery. The first part of our framework is trained in a supervised manner, on image-level labels, to uncover a set of…

Maternal-fetal Ultrasound is the primary modality for monitoring fetal development, yet automated segmentation remains challenging due to the scarcity of high-quality annotations. To address this limitation, we propose a semi-supervised…

Image and Video Processing · Electrical Eng. & Systems 2025-09-09 Fangyijie Wang , Guénolé Silvestre , Kathleen M. Curran

The limited availability of ground truth relevance labels has been a major impediment to the application of supervised methods to ad-hoc retrieval. As a result, unsupervised scoring methods, such as BM25, remain strong competitors to deep…

Information Retrieval · Computer Science 2019-07-23 Dany Haddad , Joydeep Ghosh

Semi-supervised learning has substantially advanced medical image segmentation since it alleviates the heavy burden of acquiring the costly expert-examined annotations. Especially, the consistency-based approaches have attracted more…

Image and Video Processing · Electrical Eng. & Systems 2022-03-16 Zhe Xu , Yixin Wang , Donghuan Lu , Lequan Yu , Jiangpeng Yan , Jie Luo , Kai Ma , Yefeng Zheng , Raymond Kai-yu Tong

Dense annotations, such as segmentation masks, are expensive and time-consuming to obtain, especially for 3D medical images where expert voxel-wise labeling is required. Weakly supervised approaches aim to address this limitation, but often…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Richard Petersen , Fredrik Kahl , Jennifer Alvén

As an essential indicator for cancer progression and treatment response, tumor size is often measured following the response evaluation criteria in solid tumors (RECIST) guideline in CT slices. By marking each lesion with its longest axis…

Computer Vision and Pattern Recognition · Computer Science 2023-03-02 Lianyu Zhou , Dong Wei , Donghuan Lu , Wei Xue , Liansheng Wang , Yefeng Zheng

Despite the availability of large datasets for tasks like image classification and image-text alignment, labeled data for more complex recognition tasks, such as detection and segmentation, is less abundant. In particular, for instance…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 François Porcher , Camille Couprie , Marc Szafraniec , Jakob Verbeek

Medical image segmentation has made significant progress when a large amount of labeled data are available. However, annotating medical image segmentation datasets is expensive due to the requirement of professional skills. Additionally,…

Computer Vision and Pattern Recognition · Computer Science 2023-07-25 Tao Wang , Zhongzheng Huang , Jiawei Wu , Yuanzheng Cai , Zuoyong Li

Image recognition techniques heavily rely on abundant labeled data, particularly in medical contexts. Addressing the challenges associated with obtaining labeled data has led to the prominence of self-supervised learning and semi-supervised…

Computer Vision and Pattern Recognition · Computer Science 2024-04-17 Hao Feng , Yuanzhe Jia , Ruijia Xu , Mukesh Prasad , Ali Anaissi , Ali Braytee

The ability to understand visual information from limited labeled data is an important aspect of machine learning. While image-level classification has been extensively studied in a semi-supervised setting, dense pixel-level classification…

Computer Vision and Pattern Recognition · Computer Science 2019-08-19 Sudhanshu Mittal , Maxim Tatarchenko , Thomas Brox

We propose a semi-supervised network for wide-angle portraits correction. Wide-angle images often suffer from skew and distortion affected by perspective distortion, especially noticeable at the face regions. Previous deep learning based…

Computer Vision and Pattern Recognition · Computer Science 2022-04-05 Fushun Zhu , Shan Zhao , Peng Wang , Hao Wang , Hua Yan , Shuaicheng Liu

Pseudo-labeling is a commonly used paradigm in semi-supervised learning, yet its application to semi-supervised regression (SSR) remains relatively under-explored. Unlike classification, where pseudo-labels are discrete and confidence-based…

Machine Learning · Computer Science 2025-10-20 Xueqing Sun , Renzhen Wang , Quanziang Wang , Yichen Wu , Xixi Jia , Deyu Meng

Semi-supervised multi-organ medical image segmentation aids physicians in improving disease diagnosis and treatment planning and reduces the time and effort required for organ annotation.Existing state-of-the-art methods train the labeled…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Haochen Zhao , Hui Meng , Deqian Yang , Xiaozheng Xie , Xiaoze Wu , Qingfeng Li , Jianwei Niu

It is generally accepted that one of the critical parts of current vision algorithms based on deep learning and convolutional neural networks is the annotation of a sufficient number of images to achieve competitive performance. This is…

Computer Vision and Pattern Recognition · Computer Science 2021-03-05 Kai Yao , Alberto Ortiz , Francisco Bonnin-Pascual

Recent advances in semi-supervised learning have shown tremendous potential in overcoming a major barrier to the success of modern machine learning algorithms: access to vast amounts of human-labeled training data. Previous algorithms based…

Machine Learning · Computer Science 2019-11-22 Phi Vu Tran

This paper proposes a novel method of learning by predicting view assignments with support samples (PAWS). The method trains a model to minimize a consistency loss, which ensures that different views of the same unlabeled instance are…

Computer Vision and Pattern Recognition · Computer Science 2021-08-03 Mahmoud Assran , Mathilde Caron , Ishan Misra , Piotr Bojanowski , Armand Joulin , Nicolas Ballas , Michael Rabbat