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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

The aim of surface defect detection is to identify and localise abnormal regions on the surfaces of captured objects, a task that's increasingly demanded across various industries. Current approaches frequently fail to fulfil the extensive…

计算机视觉与模式识别 · 计算机科学 2024-08-23 Blaž Rolih , Matic Fučka , Danijel Skočaj

Automatic target recognition (ATR) is an important use case for synthetic aperture radar (SAR) image interpretation. Recent years have seen significant advancements in SAR ATR technology based on semi-supervised learning. However, existing…

计算机视觉与模式识别 · 计算机科学 2024-11-07 Xinzheng Zhang , Yuqing Luo , Guopeng Li

Traditional synthetic aperture radar image change detection methods based on convolutional neural networks (CNNs) face the challenges of speckle noise and deformation sensitivity. To mitigate these issues, we proposed a Multiscale Capsule…

图像与视频处理 · 电气工程与系统科学 2022-01-25 Yunhao Gao , Feng Gao , Junyu Dong , Heng-Chao Li

Convolutional Neural Networks (CNNs) do not have a predictable recognition behavior with respect to the input resolution change. This prevents the feasibility of deployment on different input image resolutions for a specific model. To…

计算机视觉与模式识别 · 计算机科学 2020-07-14 Duo Li , Anbang Yao , Qifeng Chen

Benefited from the rapid and sustainable development of synthetic aperture radar (SAR) sensors, change detection from SAR images has received increasing attentions over the past few years. Existing unsupervised deep learning-based methods…

图像与视频处理 · 电气工程与系统科学 2022-03-15 Junjie Wang , Feng Gao , Junyu Dong , Qian Du , Heng-Chao Li

Benefiting from the developments in deep learning technology, deep-learning-based algorithms employing automatic feature extraction have achieved remarkable performance on the change detection (CD) task. However, the performance of existing…

计算机视觉与模式识别 · 计算机科学 2024-04-16 Chengxi Han , Chen Wu , Haonan Guo , Meiqi Hu , Hongruixuan Chen

Unsupervised anomaly detection from high dimensional data like mobility networks is a challenging task. Study of different approaches of feature engineering from such high dimensional data have been a focus of research in this field. This…

机器学习 · 计算机科学 2019-12-09 Urwa Muaz , Stanislav Sobolevsky

Inverse problems in imaging are typically ill-posed and are usually solved by employing regularized optimization techniques. The usage of appropriate constraints can restrict the solution space, thus making it feasible for a reconstruction…

图像与视频处理 · 电气工程与系统科学 2025-11-14 Jasleen Birdi , Tamal Majumder , Debanjan Halder , Muskan Kularia , Kedar Khare

Class imbalance poses a challenge for developing unbiased, accurate predictive models. In particular, in image segmentation neural networks may overfit to the foreground samples from small structures, which are often heavily…

计算机视觉与模式识别 · 计算机科学 2021-02-23 Zeju Li , Konstantinos Kamnitsas , Ben Glocker

In this paper, we aim at tackling a general but interesting cross-modality feature learning question in remote sensing community --- can a limited amount of highly-discrimin-ative (e.g., hyperspectral) training data improve the performance…

计算机视觉与模式识别 · 计算机科学 2019-12-19 Danfeng Hong , Naoto Yokoya , Nan Ge , Jocelyn Chanussot , Xiao Xiang Zhu

In this study, we systematically investigate the impact of class imbalance on classification performance of convolutional neural networks (CNNs) and compare frequently used methods to address the issue. Class imbalance is a common problem…

计算机视觉与模式识别 · 计算机科学 2018-10-16 Mateusz Buda , Atsuto Maki , Maciej A. Mazurowski

The collected data from industrial machines are often imbalanced, which poses a negative effect on learning algorithms. However, this problem becomes more challenging for a mixed type of data or while there is overlapping between classes.…

计算机视觉与模式识别 · 计算机科学 2020-08-10 Masoumeh Zareapoor , Pourya Shamsolmoali , Jie Yang

Prostate Cancer (PCa) is a prevalent disease among men, and multi-parametric MRIs offer a non-invasive method for its detection. While MRI-based deep learning solutions have shown promise in supporting PCa diagnosis, acquiring sufficient…

图像与视频处理 · 电气工程与系统科学 2024-06-04 Meng Zhou , Amoon Jamzad , Jason Izard , Alexandre Menard , Robert Siemens , Parvin Mousavi

Imaging in clinical routine is subject to changing scanner protocols, hardware, or policies in a typically heterogeneous set of acquisition hardware. Accuracy and reliability of deep learning models suffer from those changes as data and…

机器学习 · 计算机科学 2021-06-08 Matthias Perkonigg , Johannes Hofmanninger , Georg Langs

Despite the eye-catching breakthroughs achieved by deep visual networks in detecting region-level surface defects, the challenge of high-quality pixel-wise defect detection remains due to diverse defect appearances and data scarcity. To…

计算机视觉与模式识别 · 计算机科学 2024-09-04 Biyuan Liu , Huaixin Chen , Huiyao Zhan , Sijie Luo , Zhou Huang

Imbalance learning is a subfield of machine learning that focuses on learning tasks in the presence of class imbalance. Nearly all existing studies refer to class imbalance as a proportion imbalance, where the proportion of training samples…

机器学习 · 计算机科学 2023-05-09 Ou Wu

Bias field, which is caused by imperfect MR devices or imaged objects, introduces intensity inhomogeneity into MR images and degrades the performance of MR image analysis methods. Many retrospective algorithms were developed to facilitate…

图像与视频处理 · 电气工程与系统科学 2023-08-01 Dong Liang , Xingyu Qiu , Kuanquan Wang , Gongning Luo , Wei Wang , Yashu Liu

Estimating homography from an image pair is a fundamental problem in image alignment. Unsupervised learning methods have received increasing attention in this field due to their promising performance and label-free training. However,…

计算机视觉与模式识别 · 计算机科学 2022-05-10 Mingbo Hong , Yuhang Lu , Nianjin Ye , Chunyu Lin , Qijun Zhao , Shuaicheng Liu

Convolutional networks have marked their place over the last few years as the best performing model for various visual tasks. They are, however, most suited for supervised learning from large amounts of labeled data. Previous attempts have…

机器学习 · 计算机科学 2018-12-05 Elad Hoffer , Itay Hubara , Nir Ailon