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Learning discriminative image representations plays a vital role in long-tailed image classification because it can ease the classifier learning in imbalanced cases. Given the promising performance contrastive learning has shown recently in…

计算机视觉与模式识别 · 计算机科学 2021-03-29 Peng Wang , Kai Han , Xiu-Shen Wei , Lei Zhang , Lei Wang

Medical image segmentation is a critical yet challenging task, primarily due to the difficulty of obtaining extensive datasets of high-quality, expert-annotated images. Contrastive learning presents a potential but still problematic…

计算机视觉与模式识别 · 计算机科学 2025-04-22 Shuang Zeng , Lei Zhu , Xinliang Zhang , Hangzhou He , Yanye Lu

Chromosome recognition is an essential task in karyotyping, which plays a vital role in birth defect diagnosis and biomedical research. However, existing classification methods face significant challenges due to the inter-class similarity…

计算机视觉与模式识别 · 计算机科学 2023-12-14 Ruijia Chang , Suncheng Xiang , Chengyu Zhou , Kui Su , Dahong Qian , Jun Wang

Lesion segmentation in medical imaging serves as an effective tool for assessing tumor sizes and monitoring changes in growth. However, not only is manual lesion segmentation time-consuming, but it is also expensive and requires expert…

计算机视觉与模式识别 · 计算机科学 2020-01-28 Vatsal Agarwal , Youbao Tang , Jing Xiao , Ronald M. Summers

Self-supervised learning has proven to be an effective way to learn representations in domains where annotated labels are scarce, such as medical imaging. A widely adopted framework for this purpose is contrastive learning and it has been…

计算机视觉与模式识别 · 计算机科学 2024-02-23 Hugo Figueiras , Helena Aidos , Nuno Cruz Garcia

For medical image segmentation, contrastive learning is the dominant practice to improve the quality of visual representations by contrasting semantically similar and dissimilar pairs of samples. This is enabled by the observation that…

计算机视觉与模式识别 · 计算机科学 2023-10-25 Chenyu You , Weicheng Dai , Yifei Min , Fenglin Liu , David A. Clifton , S Kevin Zhou , Lawrence Hamilton Staib , James S Duncan

Weakly supervised segmentation requires assigning a label to every pixel based on training instances with partial annotations such as image-level tags, object bounding boxes, labeled points and scribbles. This task is challenging, as coarse…

计算机视觉与模式识别 · 计算机科学 2021-05-12 Tsung-Wei Ke , Jyh-Jing Hwang , Stella X. Yu

Few-shot learning is an established topic in natural images for years, but few work is attended to histology images, which is of high clinical value since well-labeled datasets and rare abnormal samples are expensive to collect. Here, we…

图像与视频处理 · 电气工程与系统科学 2022-02-21 Jiawei Yang , Hanbo Chen , Jiangpeng Yan , Xiaoyu Chen , Jianhua Yao

We present a weakly supervised deep learning method to perform instance segmentation of cells present in microscopy images. Annotation of biomedical images in the lab can be scarce, incomplete, and inaccurate. This is of concern when…

计算机视觉与模式识别 · 计算机科学 2019-08-28 Fidel A. Guerrero-Peña , Pedro D. Marrero Fernandez , Tsang Ing Ren , Alexandre Cunha

Using deep learning models to diagnose cancer from histology data presents several challenges. Cancer grading and localization of regions of interest (ROIs) in these images normally relies on both image- and pixel-level labels, the latter…

计算机视觉与模式识别 · 计算机科学 2023-06-29 Jérôme Rony , Soufiane Belharbi , Jose Dolz , Ismail Ben Ayed , Luke McCaffrey , Eric Granger

Localization of chest pathologies in chest X-ray images is a challenging task because of their varying sizes and appearances. We propose a novel weakly supervised method to localize chest pathologies using class aware deep multiscale…

计算机视觉与模式识别 · 计算机科学 2018-08-28 Suman Sedai , Dwarikanath Mahapatra , Zongyuan Ge , Rajib Chakravorty , Rahil Garnavi

Whole-slide image (WSI) analysis plays a crucial role in cancer diagnosis and treatment. In addressing the demands of this critical task, self-supervised learning (SSL) methods have emerged as a valuable resource, leveraging their…

计算机视觉与模式识别 · 计算机科学 2023-12-13 Gia-Bao Le , Van-Tien Nguyen , Trung-Nghia Le , Minh-Triet Tran

Curation of large fully supervised datasets has become one of the major roadblocks for machine learning. Weak supervision provides an alternative to supervised learning by training with cheap, noisy, and possibly correlated labeling…

机器学习 · 计算机科学 2021-06-01 Chidubem Arachie , Bert Huang

Within medical imaging, manual curation of sufficient well-labeled samples is cost, time and scale-prohibitive. To improve the representativeness of the training dataset, for the first time, we present an approach to utilize large amounts…

计算机视觉与模式识别 · 计算机科学 2019-06-03 Fernando Navarro , Sailesh Conjeti , Federico Tombari , Nassir Navab

This paper proposes an efficient system for classifying cervical cancer cells using pre-trained convolutional neural networks (CNNs). We first fine-tune five pre-trained CNNs and minimize the overall cost of misclassification by…

计算机视觉与模式识别 · 计算机科学 2024-02-27 Ashfiqun Mustari , Rushmia Ahmed , Afsara Tasnim , Jakia Sultana Juthi , G M Shahariar

The advancement of deep learning has greatly improved supervised image classification. However, labeling data is costly, prompting research into unsupervised learning methods such as contrastive learning. In real-world scenarios, fully…

人工智能 · 计算机科学 2026-01-09 Shogo Nakayama , Masahiro Okuda

Semi-supervised learning methods have shown promising results in solving many practical problems when only a few labels are available. The existing methods assume that the class distributions of labeled and unlabeled data are equal;…

机器学习 · 计算机科学 2024-08-06 Min Gu Kwak , Hyungu Kahng , Seoung Bum Kim

In step with the digitalization of transportation, we are witnessing a growing range of path-based smart-city applications, e.g., travel-time estimation and travel path ranking. A temporal path(TP) that includes temporal information, e.g.,…

机器学习 · 计算机科学 2022-04-18 Sean Bin Yang , Chenjuan Guo , Jilin Hu , Bin Yang , Jian Tang , Christian S. Jensen

Medical image segmentation is a crucial task in medical image analysis, but it can be very challenging especially when there are less labeled data but with large unlabeled data. Contrastive learning has proven to be effective for medical…

计算机视觉与模式识别 · 计算机科学 2025-02-11 Shihuan He , Zhihui Lai , Ruxin Wang , Heng Kong

In this paper, we propose a novel selection strategy for contrastive learning for medical images. On natural images, contrastive learning uses augmentations to select positive and negative pairs for the contrastive loss. However, in the…

计算机视觉与模式识别 · 计算机科学 2026-02-24 Kiran Kokilepersaud , Mohit Prabhushankar , Ghassan AlRegib , Stephanie Trejo Corona , Charles Wykoff