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While fine-tuning pre-trained networks has become a popular way to train image segmentation models, such backbone networks for image segmentation are frequently pre-trained using image classification source datasets, e.g., ImageNet. Though…

计算机视觉与模式识别 · 计算机科学 2022-07-08 Xuhong Li , Haoyi Xiong , Yi Liu , Dingfu Zhou , Zeyu Chen , Yaqing Wang , Dejing Dou

The scarcity of labeled data often impedes the application of deep learning to the segmentation of medical images. Semi-supervised learning seeks to overcome this limitation by exploiting unlabeled examples in the learning process. In this…

计算机视觉与模式识别 · 计算机科学 2021-06-25 Jizong Peng , Marco Pedersoli , Christian Desrosiers

Unsupervised pre-training has been proven as an effective approach to boost various downstream tasks given limited labeled data. Among various methods, contrastive learning learns a discriminative representation by constructing positive and…

图像与视频处理 · 电气工程与系统科学 2022-02-17 Jizong Peng , Ping Wang , Marco Pedersoli , Christian Desrosiers

In this paper, we develop a new weakly-supervised learning algorithm to learn to segment cancerous regions in histopathology images. Our work is under a multiple instance learning framework (MIL) with a new formulation, deep weak…

计算机视觉与模式识别 · 计算机科学 2017-08-30 Zhipeng Jia , Xingyi Huang , Eric I-Chao Chang , Yan Xu

Deep learning has demonstrated remarkable achievements in medical image segmentation. However, prevailing deep learning models struggle with poor generalization due to (i) intra-class variations, where the same class appears differently in…

图像与视频处理 · 电气工程与系统科学 2024-08-09 Vandan Gorade , Sparsh Mittal , Debesh Jha , Rekha Singhal , Ulas Bagci

Time series self-supervised learning (SSL) aims to exploit unlabeled data for pre-training to mitigate the reliance on labels. Despite the great success in recent years, there is limited discussion on the potential noise in the time series,…

机器学习 · 计算机科学 2024-06-10 Shuang Zhou , Daochen Zha , Xiao Shen , Xiao Huang , Rui Zhang , Fu-Lai Chung

Multimodal image-tabular learning is gaining attention, yet it faces challenges due to limited labeled data. While earlier work has applied self-supervised learning (SSL) to unlabeled data, its task-agnostic nature often results in learning…

计算机视觉与模式识别 · 计算机科学 2025-03-18 Siyi Du , Xinzhe Luo , Declan P. O'Regan , Chen Qin

Medical Image Segmentation (MIS) plays a crucial role in medical therapy planning and robot navigation. Prototype learning methods in MIS focus on generating segmentation masks through pixel-to-prototype comparison. However, current…

统计方法学 · 统计学 2025-07-11 Guoyan Liang , Qin Zhou , Jingyuan Chen , Zhe Wang , Chang Yao

Long-tailed semi-supervised learning poses a significant challenge in training models with limited labeled data exhibiting a long-tailed label distribution. Current state-of-the-art LTSSL approaches heavily rely on high-quality…

机器学习 · 计算机科学 2024-10-10 Zi-Hao Zhou , Siyuan Fang , Zi-Jing Zhou , Tong Wei , Yuanyu Wan , Min-Ling Zhang

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…

计算机视觉与模式识别 · 计算机科学 2026-05-04 Shan Xiong , Jiabao Chen , Ye Wang , Jialin Peng

Medical image segmentation plays a crucial role in computer-aided diagnosis. However, existing methods heavily rely on fully supervised training, which requires a large amount of labeled data with time-consuming pixel-wise annotations.…

计算机视觉与模式识别 · 计算机科学 2024-09-04 Yunqi Gu , Tao Zhou , Yizhe Zhang , Yi Zhou , Kelei He , Chen Gong , Huazhu Fu

Self-supervised learning (SSL) has made enormous progress and largely narrowed the gap with the supervised ones, where the representation learning is mainly guided by a projection into an embedding space. During the projection, current…

计算机视觉与模式识别 · 计算机科学 2022-03-29 Lang Huang , Shan You , Mingkai Zheng , Fei Wang , Chen Qian , Toshihiko Yamasaki

Pathological image segmentation faces numerous challenges, particularly due to ambiguous semantic boundaries and the high cost of pixel-level annotations. Although recent semi-supervised methods based on consistency regularization (e.g.,…

计算机视觉与模式识别 · 计算机科学 2025-08-28 Mingxi Fu , Fanglei Fu , Xitong Ling , Huaitian Yuan , Tian Guan , Yonghong He , Lianghui Zhu

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

Contrastive self-supervised learning (CSL) has attracted increasing attention for model pre-training via unlabeled data. The resulted CSL models provide instance-discriminative visual features that are uniformly scattered in the feature…

计算机视觉与模式识别 · 计算机科学 2021-10-15 Yifan Zhang , Bryan Hooi , Dapeng Hu , Jian Liang , Jiashi Feng

Self-supervised learning (SSL) has gained widespread attention in the remote sensing (RS) and earth observation (EO) communities owing to its ability to learn task-agnostic representations without human-annotated labels. Nevertheless, most…

计算机视觉与模式识别 · 计算机科学 2023-08-07 Dilxat Muhtar , Xueliang Zhang , Pengfeng Xiao , Zhenshi Li , Feng Gu

Semi-supervised action recognition aims to improve spatio-temporal reasoning ability with a few labeled data in conjunction with a large amount of unlabeled data. Albeit recent advancements, existing powerful methods are still prone to…

计算机视觉与模式识别 · 计算机科学 2024-04-26 Yu Wang , Sanping Zhou , Kun Xia , Le Wang

It has been widely recognized that the success of deep learning in image segmentation relies overwhelmingly on a myriad amount of densely annotated training data, which, however, are difficult to obtain due to the tremendous labor and…

计算机视觉与模式识别 · 计算机科学 2020-11-26 Yutong Xie , Jianpeng Zhang , Zehui Liao , Yong Xia , Chunhua Shen

Recent advances in image-level self-supervised learning (SSL) have made significant progress, yet learning dense representations for patches remains challenging. Mainstream methods encounter an over-dispersion phenomenon that patches from…

计算机视觉与模式识别 · 计算机科学 2025-09-12 Peisong Wen , Qianqian Xu , Siran Dai , Runmin Cong , Qingming Huang

Contrastive Language-Image Pre-training (CLIP) has achieved success on multiple downstream tasks by aligning image and text modalities. However, the nature of global contrastive learning limits CLIP's ability to comprehend compositional…

计算机视觉与模式识别 · 计算机科学 2025-08-27 Xiaoxing Hu , Kaicheng Yang , Jun Wang , Haoran Xu , Ziyong Feng , Yupei Wang