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Background: Breast ultrasound is prominently used in diagnosing breast tumors. At present, many automatic systems based on deep learning have been developed to help radiologists in diagnosis. However, training such systems remains…

Computer Vision and Pattern Recognition · Computer Science 2024-08-21 Yunxin Tang , Siyuan Tang , Jian Zhang , Hao Chen

The self-supervised ultrasound (US) video model pretraining can use a small amount of labeled data to achieve one of the most promising results on US diagnosis. However, it does not take full advantage of multi-level knowledge for learning…

Computer Vision and Pattern Recognition · Computer Science 2022-10-14 Chunhui Zhang , Yixiong Chen , Li Liu , Qiong Liu , Xi Zhou

Deep learning has demonstrated significant improvements in medical image segmentation using a sufficiently large amount of training data with manual labels. Acquiring well-representative labels requires expert knowledge and exhaustive…

Computer Vision and Pattern Recognition · Computer Science 2021-06-15 Jinxi Xiang , Zhuowei Li , Wenji Wang , Qing Xia , Shaoting Zhang

Recently, deep learning-based methods achieved promising performance in nuclei detection and classification applications. However, training deep learning-based methods requires a large amount of pixel-wise annotated data, which is…

Image and Video Processing · Electrical Eng. & Systems 2024-01-17 Nazanin Moradinasab , Rebecca A. Deaton , Laura S. Shankman , Gary K. Owens , Donald E. Brown

Contrastive learning has shown outstanding performances in both supervised and unsupervised learning, and has recently been introduced to solve weakly supervised learning problems such as semi-supervised learning and noisy label learning.…

Machine Learning · Computer Science 2023-06-08 Jingyi Cui , Weiran Huang , Yifei Wang , Yisen Wang

Geo-tagged images are publicly available in large quantities, whereas labels such as object classes are rather scarce and expensive to collect. Meanwhile, contrastive learning has achieved tremendous success in various natural image and…

Computer Vision and Pattern Recognition · Computer Science 2023-05-10 Gengchen Mai , Ni Lao , Yutong He , Jiaming Song , Stefano Ermon

Unsupervised learning has been a long-standing goal of machine learning and is especially important for medical image analysis, where the learning can compensate for the scarcity of labeled datasets. A promising subclass of unsupervised…

Image and Video Processing · Electrical Eng. & Systems 2021-09-09 Ozan Ciga , Tony Xu , Anne L. Martel

Spatially aligning medical images from different modalities remains a challenging task, especially for intraoperative applications that require fast and robust algorithms. We propose a weakly-supervised, label-driven formulation for…

Computer Vision and Pattern Recognition · Computer Science 2018-06-05 Yipeng Hu , Marc Modat , Eli Gibson , Nooshin Ghavami , Ester Bonmati , Caroline M. Moore , Mark Emberton , J. Alison Noble , Dean C. Barratt , Tom Vercauteren

Breast cancer, the second leading cause of cancer-related deaths globally, accounts for a quarter of all cancer cases [1]. To lower this death rate, it is crucial to detect tumors early, as early-stage detection significantly improves…

Computer Vision and Pattern Recognition · Computer Science 2025-09-26 Samia Saeed , Khuram Naveed

This work proposes a novel approach beyond supervised learning for effective pathological image analysis, addressing the challenge of limited robust labeled data. Pathological diagnosis of diseases like cancer has conventionally relied on…

Computer Vision and Pattern Recognition · Computer Science 2024-10-23 Joonhyeon Song , Seohwan Yun , Seongho Yoon , Joohyeok Kim , Sangmin Lee

In this paper we propose a reinforcement learning based weakly supervised system for localisation. We train a controller function to localise regions of interest within an image by introducing a novel reward definition that utilises…

Computer Vision and Pattern Recognition · Computer Science 2024-02-22 Martynas Pocius , Wen Yan , Dean C. Barratt , Mark Emberton , Matthew J. Clarkson , Yipeng Hu , Shaheer U. Saeed

Weakly Supervised Object Detection (WSOD) is a task that detects objects in an image using a model trained only on image-level annotations. Current state-of-the-art models benefit from self-supervised instance-level supervision, but since…

Computer Vision and Pattern Recognition · Computer Science 2022-09-05 Jinhwan Seo , Wonho Bae , Danica J. Sutherland , Junhyug Noh , Daijin Kim

Annotation-efficient segmentation of the numerous mitochondria instances from various electron microscopy (EM) images is highly valuable for biological and neuroscience research. Although unsupervised domain adaptation (UDA) methods can…

Computer Vision and Pattern Recognition · Computer Science 2026-05-04 Shan Xiong , Jiabao Chen , Ye Wang , Jialin Peng

The lack of large labeled medical imaging datasets, along with significant inter-individual variability compared to clinically established disease classes, poses significant challenges in exploiting medical imaging information in a…

Computer Vision and Pattern Recognition · Computer Science 2022-09-27 Matteo Ferrante , Tommaso Boccato , Simeon Spasov , Andrea Duggento , Nicola Toschi

We propose a Deep learning-based weak label learning method for analyzing whole slide images (WSIs) of Hematoxylin and Eosin (H&E) stained tumor tissue not requiring pixel-level or tile-level annotations using Self-supervised pre-training…

Image and Video Processing · Electrical Eng. & Systems 2023-06-29 Yoni Schirris , Efstratios Gavves , Iris Nederlof , Hugo Mark Horlings , Jonas Teuwen

Weakly supervised multiple instance learning (MIL) is a challenging task given that only bag-level labels are provided, while each bag typically contains multiple instances. This topic has been extensively studied in histopathological image…

Computer Vision and Pattern Recognition · Computer Science 2025-08-01 Bodong Zhang , Hamid Manoochehri , Xiwen Li , Beatrice S. Knudsen , Tolga Tasdizen

The segmentation of endoscopic images plays a vital role in computer-aided diagnosis and treatment. The advancements in deep learning have led to the employment of numerous models for endoscopic tumor segmentation, achieving promising…

Computer Vision and Pattern Recognition · Computer Science 2025-02-03 Lingcong Cai , Yun Li , Xiaomao Fan , Kaixuan Song , Ruxin Wang , Wenbin Lei

Considering the profound transformation affecting pathology practice, we aimed to develop a scalable artificial intelligence (AI) system to diagnose colorectal cancer from whole-slide images (WSI). For this, we propose a deep learning (DL)…

Contrastive learning has achieved remarkable success in learning effective representations, with supervised contrastive learning often outperforming self-supervised approaches. However, in real-world scenarios, data annotations are often…

Machine Learning · Computer Science 2025-05-29 Zi-Hao Zhou , Jun-Jie Wang , Tong Wei , Min-Ling Zhang

Quantitative disease severity scoring in medical imaging is costly, time-consuming, and subject to inter-reader variability. At the same time, clinical archives contain far more longitudinal imaging data than expert-annotated severity…