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Meta-reinforcement learning typically requires orders of magnitude more samples than single task reinforcement learning methods. This is because meta-training needs to deal with more diverse distributions and train extra components such as…

机器学习 · 计算机科学 2021-03-12 Bernie Wang , Simon Xu , Kurt Keutzer , Yang Gao , Bichen Wu

Self-supervised learning (SSL) has achieved major advances in natural images and video understanding, but challenges remain in domains like echocardiography (heart ultrasound) due to subtle anatomical structures, complex temporal dynamics,…

计算机视觉与模式识别 · 计算机科学 2026-01-26 Divyanshu Mishra , Mohammadreza Salehi , Pramit Saha , Olga Patey , Aris T. Papageorghiou , Yuki M. Asano , J. Alison Noble

Electrocardiograms (ECG) are widely employed as a diagnostic tool for monitoring electrical signals originating from a heart. Recent machine learning research efforts have focused on the application of screening various diseases using ECG…

信号处理 · 电气工程与系统科学 2024-03-20 Yeongyeon Na , Minje Park , Yunwon Tae , Sunghoon Joo

To bridge the gap between the source and target domains in unsupervised domain adaptation (UDA), the most common strategy puts focus on matching the marginal distributions in the feature space through adversarial learning. However, such…

计算机视觉与模式识别 · 计算机科学 2022-01-19 Zhizhe Liu , Zhenfeng Zhu , Shuai Zheng , Yang Liu , Jiayu Zhou , Yao Zhao

Self-supervised learning (SSL) has emerged as a powerful technique for improving the efficiency and effectiveness of deep learning models. Contrastive methods are a prominent family of SSL that extract similar representations of two…

Existing Masked Image Modeling (MIM) depends on a spatial patch-based masking-reconstruction strategy to perceive objects'features from unlabeled images, which may face two limitations when applied to chest CT: 1) inefficient feature…

图像与视频处理 · 电气工程与系统科学 2024-07-15 Jie Zheng , Ru Wen , Haiqin Hu , Lina Wei , Kui Su , Wei Chen , Chen Liu , Jun Wang

Conventional Computed Tomography (CT) imaging recognition faces two significant challenges: (1) There is often considerable variability in the resolution and size of each CT scan, necessitating strict requirements for the input size and…

图像与视频处理 · 电气工程与系统科学 2024-04-23 Chih-Chung Hsu , Chia-Ming Lee , Yang Fan Chiang , Yi-Shiuan Chou , Chih-Yu Jiang , Shen-Chieh Tai , Chi-Han Tsai

Spatial transcriptomics aims to connect high-resolution histology images with spatially resolved gene expression. To achieve better performance on downstream tasks such as gene expression prediction, large-scale pre-training is required to…

计算机视觉与模式识别 · 计算机科学 2025-09-23 Jiahe Qian , Yaoyu Fang , Ziqiao Weng , Xinkun Wang , Lee A. Cooper , Bo Zhou

Cardiovascular magnetic resonance (CMR) is the gold standard for assessing cardiac function, but individual cardiac cycles complicate automatic temporal comparison or sub-phase analysis. Accurate cardiac keyframe detection can eliminate…

Continuous Sign Language Recognition (CSLR) has achieved remarkable progress in recent years; however, most existing methods are developed under single-view settings and thus remain insufficiently robust to viewpoint variations in…

计算机视觉与模式识别 · 计算机科学 2026-04-21 Xu Wang , Shengeng Tang , Wan Jiang , Yaxiong Wang , Lechao Cheng , Richang Hong

Current 3D semi-supervised segmentation methods face significant challenges such as limited consideration of contextual information and the inability to generate reliable pseudo-labels for effective unsupervised data use. To address these…

计算机视觉与模式识别 · 计算机科学 2023-11-22 Sanaz Karimijafarbigloo , Reza Azad , Yury Velichko , Ulas Bagci , Dorit Merhof

Patient-specific left ventricle (LV) myocardial models have the potential to be used in a variety of clinical scenarios for improved diagnosis and treatment plans. Cine cardiac magnetic resonance (MR) imaging provides high resolution images…

图像与视频处理 · 电气工程与系统科学 2021-04-01 Roshan Reddy Upendra , Brian Jamison Wentz , Richard Simon , Suzanne M. Shontz , Cristian A. Linte

Supervised deep learning models for automated CTG analysis are typically constrained by narrowly curated labelled datasets and limited patient cohorts, leaving substantial volumes of physiologically informative clinical recordings untapped.…

机器学习 · 计算机科学 2026-05-06 Sheng Wong , Ravi Shankar , Beth Albert , Hao Fei , Lin Li , Imane Ben M'Barek , Manu Vatish , Gabriel Davis Jones

Context-aware methods have achieved remarkable advancements in supervised scene text recognition by leveraging semantic priors from words. Considering the heterogeneity of text and background in STR, we propose that such contextual priors…

计算机视觉与模式识别 · 计算机科学 2024-11-20 Tiancheng Lin , Jinglei Zhang , Yi Xu , Kai Chen , Rui Zhang , Chang-Wen Chen

In the field of signal processing for robotics, the inverse kinematics of robot arms presents a significant challenge due to multiple solutions caused by redundant degrees of freedom (DOFs). Precision is also a crucial performance indicator…

机器人学 · 计算机科学 2025-04-24 Qu Weiming , Liu Tianlin , Du Jiawei , Luo Dingsheng

Contrastive learning has shown great potential in video representation learning. However, existing approaches fail to sufficiently exploit short-term motion dynamics, which are crucial to various down-stream video understanding tasks. In…

计算机视觉与模式识别 · 计算机科学 2022-08-15 Jingcheng Ni , Nan Zhou , Jie Qin , Qian Wu , Junqi Liu , Boxun Li , Di Huang

Deep learning models have enjoyed great success for image related computer vision tasks like image classification and object detection. For video related tasks like human action recognition, however, the advancements are not as significant…

计算机视觉与模式识别 · 计算机科学 2018-09-12 Xiaolin Song , Cuiling Lan , Wenjun Zeng , Junliang Xing , Jingyu Yang , Xiaoyan Sun

We propose a self-supervised learning approach for videos that learns representations of both the RGB frames and the accompanying audio without human supervision. In contrast to images that capture the static scene appearance, videos also…

计算机视觉与模式识别 · 计算机科学 2023-02-16 Simon Jenni , Alexander Black , John Collomosse

Recent advances in 3D reconstruction techniques and vision-language models have fueled significant progress in 3D semantic understanding, a capability critical to robotics, autonomous driving, and virtual/augmented reality. However, methods…

计算机视觉与模式识别 · 计算机科学 2025-08-15 Lei Tian , Xiaomin Li , Liqian Ma , Hao Yin , Zirui Zheng , Hefei Huang , Taiqing Li , Huchuan Lu , Xu Jia

Self-supervised learning (SSL) methods have shown promise for medical imaging applications by learning meaningful visual representations, even when the amount of labeled data is limited. Here, we extend state-of-the-art contrastive learning…