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Time series anomaly detection is critical for a wide range of applications. It aims to identify deviant samples from the normal sample distribution in time series. The most fundamental challenge for this task is to learn a representation…

机器学习 · 计算机科学 2023-10-12 Yiyuan Yang , Chaoli Zhang , Tian Zhou , Qingsong Wen , Liang Sun

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

计算机视觉与模式识别 · 计算机科学 2021-09-28 Yunhao Gao , Feng Gao , Junyu Dong , Heng-Chao Li

Deep Learning is gaining traction with geophysics community to understand subsurface structures, such as fault detection or salt body in seismic data. This study describes using deep learning method for iceberg or ship recognition with…

机器学习 · 计算机科学 2018-12-19 Cheng Zhan , Licheng Zhang , Zhenzhen Zhong , Sher Didi-Ooi , Youzuo Lin , Yunxi Zhang , Shujiao Huang , Changchun Wang

The advancement of multi-channel synthetic aperture radar (SAR) system is considered as an upgraded technology for surveillance activities. SAR sensors onboard provide data for coastal ocean surveillance and a view of the oceanic surface…

计算机视觉与模式识别 · 计算机科学 2023-04-25 Surya Prakash Tiwari , Sudhir Kumar Chaturvedi , Subhrangshu Adhikary , Saikat Banerjee , Sourav Basu

Deep neural networks (DNNs) have achieved remarkable success in computer vision tasks such as image classification, segmentation, and object detection. However, they are vulnerable to adversarial attacks, which can cause incorrect…

计算机视觉与模式识别 · 计算机科学 2025-11-03 Suklav Ghosh , Sonal Kumar , Arijit Sur

Polarimetric synthetic aperture radar (PolSAR) image interpretation is widely used in various fields. Recently, deep learning has made significant progress in PolSAR image classification. Supervised learning (SL) requires a large amount of…

计算机视觉与模式识别 · 计算机科学 2024-05-07 Jianfeng Cai , Yue Ma , Zhixi Feng , Shuyuan Yang

Contrastive deep graph clustering, which aims to divide nodes into disjoint groups via contrastive mechanisms, is a challenging research spot. Among the recent works, hard sample mining-based algorithms have achieved great attention for…

机器学习 · 计算机科学 2023-01-31 Yue Liu , Xihong Yang , Sihang Zhou , Xinwang Liu , Zhen Wang , Ke Liang , Wenxuan Tu , Liang Li , Jingcan Duan , Cancan Chen

Classifying buried and obscured targets of interest from other natural and manmade clutter objects in the scene is an important problem for the U.S. Army. Targets of interest are often represented by signals captured using low-frequency…

图像与视频处理 · 电气工程与系统科学 2018-02-23 Tiep Vu , Lam Nguyen , Tiantong Guo , Vishal Monga

Recent advances in self-supervised learning have attracted significant attention from both machine learning and neuroscience. This is primarily because self-supervised methods do not require annotated supervisory information, making them…

神经元与认知 · 定量生物学 2025-12-05 Asaki Kataoka , Yoshihiro Nagano , Masafumi Oizumi

Contrastive learning has achieved promising performance in the field of multi-view clustering recently. However, the positive and negative sample construction mechanisms ignoring semantic consistency lead to false negative pairs, limiting…

计算机视觉与模式识别 · 计算机科学 2024-03-12 Siwen Liu , Jinyan Liu , Hanning Yuan , Qi Li , Jing Geng , Ziqiang Yuan , Huaxu Han

Deep neural networks (DNNs) have numerous applications across various domains. Several optimization techniques, such as ResNet and SENet, have been proposed to improve model accuracy. These techniques improve the model performance by…

计算机视觉与模式识别 · 计算机科学 2024-11-22 Wenxiang Xu , Tian Qiu , Linyun Zhou , Zunlei Feng , Mingli Song , Huiqiong Wang

Synthetic Aperture Radar (SAR) despeckling is an important problem in remote sensing as speckle degrades SAR images, affecting downstream tasks like detection and segmentation. Recent studies show that convolutional neural networks(CNNs)…

计算机视觉与模式识别 · 计算机科学 2022-06-01 Malsha V. Perera , Wele Gedara Chaminda Bandara , Jeya Maria Jose Valanarasu , Vishal M. Patel

Although efficient extraction of discriminative spatial-spectral features is critical for hyperspectral images classification (HSIC), it is difficult to achieve these features due to factors such as the spatial-spectral heterogeneity and…

计算机视觉与模式识别 · 计算机科学 2025-02-28 Yimin Zhu , Linlin Xu

In current synthetic aperture radar (SAR) object classification, one of the major challenges is the severe overfitting issue due to the limited dataset (few-shot) and noisy data. Considering the advantages of knowledge distillation as a…

计算机视觉与模式识别 · 计算机科学 2023-11-28 Bo Xu , Hao Zheng , Zhigang Hu , Liu Yang , Meiguang Zheng

This paper presents a deep learning approach for the classification of Engineering (CAD) models using Convolutional Neural Networks (CNNs). Owing to the availability of large annotated datasets and also enough computational power in the…

计算机视觉与模式识别 · 计算机科学 2021-07-15 Bharadwaj Manda , Pranjal Bhaskare , Ramanathan Muthuganapathy

Small area change detection from synthetic aperture radar (SAR) is a highly challenging task. In this paper, a robust unsupervised approach is proposed for small area change detection from multi-temporal SAR images using deep learning.…

计算机视觉与模式识别 · 计算机科学 2020-11-24 Xinzheng Zhang , Hang Su , Ce Zhang , Xiaowei Gu , Xiaoheng Tan , Peter M. Atkinson

Mainstream DNN-based SAR-ATR methods still face issues such as easy overfitting of a few training data, high computational overhead, and poor interpretability of the black-box model. Integrating physical knowledge into DNNs to improve…

图像与视频处理 · 电气工程与系统科学 2024-11-18 Xuying Xiong , Xinyu Zhang , Weidong Jiang , Tianpeng Liu

In image denoising, deep convolutional neural networks (CNNs) can obtain favorable performance on removing spatially invariant noise. However, many of these networks cannot perform well on removing the real noise (i.e. spatially variant…

图像与视频处理 · 电气工程与系统科学 2023-05-09 Wencong Wu , Shijie Liu , Yi Zhou , Yungang Zhang , Yu Xiang

This paper proposes a new deep learning approach to antipodal grasp detection, named Double-Dot Network (DD-Net). It follows the recent anchor-free object detection framework, which does not depend on empirically pre-set anchors and thus…

机器人学 · 计算机科学 2021-08-04 Yao Wang , Yangtao Zheng , Boyang Gao , Di Huang

Pansharpening enhances spatial details of high spectral resolution multispectral images using features of high spatial resolution panchromatic image. There are a number of traditional pansharpening approaches but producing an image…

计算机视觉与模式识别 · 计算机科学 2022-07-26 Syeda Roshana Ali , Anis Ur Rahman , Muhammad Shahzad