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Deep learning has driven significant progress in object detection using Synthetic Aperture Radar (SAR) imagery. Existing methods, while achieving promising results, often struggle to effectively integrate local and global information,…

计算机视觉与模式识别 · 计算机科学 2024-10-15 Mingxiang Cao , Weiying Xie , Jie Lei , Jiaqing Zhang , Daixun Li , Yunsong Li

Self-supervised learning has proved effective for skeleton-based human action understanding, which is an important yet challenging topic. Previous works mainly rely on contrastive learning or masked motion modeling paradigm to model the…

计算机视觉与模式识别 · 计算机科学 2023-08-09 Jiahang Zhang , Lilang Lin , Jiaying Liu

Synthetic Aperture Radar (SAR) is a critical imaging modality due to its all-weather operational capability. Although recent advances in self-supervised learning and masked image modeling (MIM) have enabled SAR foundation models, these…

计算机视觉与模式识别 · 计算机科学 2026-05-18 Qiwei Ma , Xukun Lu , Wang Liu , Puhong Duan , Xudong Kang , Shutao Li

Point cloud data plays an essential role in robotics and self-driving applications. Yet, annotating point cloud data is time-consuming and nontrivial while they enable learning discriminative 3D representations that empower downstream…

计算机视觉与模式识别 · 计算机科学 2023-03-01 Srikanth Malla , Yi-Ting Chen

A key feature of magnetic resonance (MR) imaging is its ability to manipulate how the intrinsic tissue parameters of the anatomy ultimately contribute to the contrast properties of the final, acquired image. This flexibility, however, can…

计算机视觉与模式识别 · 计算机科学 2018-11-20 Dzung L. Pham , Snehashis Roy

Contrastive Learning (CL) is a recent representation learning approach, which encourages inter-class separability and intra-class compactness in learned image representations. Since medical images often contain multiple semantic classes in…

计算机视觉与模式识别 · 计算机科学 2021-08-09 Prashant Pandey , Ajey Pai , Nisarg Bhatt , Prasenjit Das , Govind Makharia , Prathosh AP , Mausam

The deep learning technique has been shown to be effectively addressed several image analysis tasks in the computer-aided diagnosis scheme for mammography. The training of an efficacious deep learning model requires large data with diverse…

计算机视觉与模式识别 · 计算机科学 2023-09-08 Zheren Li , Zhiming Cui , Lichi Zhang , Sheng Wang , Chenjin Lei , Xi Ouyang , Dongdong Chen , Xiangyu Zhao , Yajia Gu , Zaiyi Liu , Chunling Liu , Dinggang Shen , Jie-Zhi Cheng

The disperse structure distributions (discreteness) and variant scattering characteristics (variability) of SAR airplane targets lead to special challenges of object detection and recognition. The current deep learning-based detectors…

计算机视觉与模式识别 · 计算机科学 2024-11-20 Zhongling Huang , Long Liu , Shuxin Yang , Zhirui Wang , Gong Cheng , Junwei Han

We focus on domain and class generalization problems in analyzing optical remote sensing images, using the large-scale pre-trained vision-language model (VLM), CLIP. While contrastively trained VLMs show impressive zero-shot generalization…

计算机视觉与模式识别 · 计算机科学 2023-11-28 Avigyan Bhattacharya , Mainak Singha , Ankit Jha , Biplab Banerjee

Recent methods for learning unsupervised visual representations, dubbed contrastive learning, optimize the noise-contrastive estimation (NCE) bound on mutual information between two views of an image. NCE uses randomly sampled negative…

机器学习 · 计算机科学 2020-10-06 Mike Wu , Milan Mosse , Chengxu Zhuang , Daniel Yamins , Noah Goodman

This work aims to train Deep Learning models to perform Automatic Target Recognition (ATR) on Synthetic Aperture Radar (SAR) images. To circumvent the lack of real labelled measurements, we resort to synthetic data produced by SAR…

计算机视觉与模式识别 · 计算机科学 2025-10-30 Benjamin Camus , Julien Houssay , Corentin Le Barbu , Eric Monteux , Cédric Saleun , Christian Cochin

Generalized Category Discovery (GCD) holds significant promise for the label-scarce Synthetic Aperture Radar (SAR) domain, yet its efficacy is severely constrained by the cross-modal incompatibility between the inherent optical prior of the…

计算机视觉与模式识别 · 计算机科学 2026-04-27 Jingyuan Xia , Ruikang Hu , Ye Li , Zhixiong Yang , Xu Lan , Zhejun Lu

Recent work has compared neural network representations via similarity-based analyses to improve model interpretation. The quality of a similarity measure is typically evaluated by its success in assigning a high score to representations…

计算与语言 · 计算机科学 2024-09-23 Adir Rahamim , Yonatan Belinkov

While deep learning has contributed to the advancement of sensor-based Human Activity Recognition (HAR), it is usually a costly and challenging supervised task with the needs of a large amount of labeled data. To alleviate this issue,…

人机交互 · 计算机科学 2022-03-24 Jinqiang Wang , Tao Zhu , Jingyuan Gan , Liming Chen , Huansheng Ning , Yaping Wan

In this paper we investigate the use of discriminative model learning through Convolutional Neural Networks (CNNs) for SAR image despeckling. The network uses a residual learning strategy, hence it does not recover the filtered image, but…

计算机视觉与模式识别 · 计算机科学 2017-05-04 G. Chierchia , D. Cozzolino , G. Poggi , L. Verdoliva

Weakly supervised semantic segmentation (WSSS) methods using class labels often rely on class activation maps (CAMs) to localize objects. However, traditional CAM-based methods struggle with partial activations and imprecise object…

计算机视觉与模式识别 · 计算机科学 2025-07-01 Dewen Zeng , Xinrong Hu , Yu-Jen Chen , Yawen Wu , Xiaowei Xu , Yiyu Shi

Composed Image Retrieval (CIR) involves retrieving a target image based on a composed query of an image paired with text that specifies modifications or changes to the visual reference. CIR is inherently an instruction-following task, as…

计算机视觉与模式识别 · 计算机科学 2024-12-10 Wenliang Zhong , Weizhi An , Feng Jiang , Hehuan Ma , Yuzhi Guo , Junzhou Huang

Optical image data have been used by the Remote Sensing workforce to study land use and cover since such data is easily interpretable. Synthetic Aperture Radar (SAR) has the characteristic of obtaining images during all-day, all-weather and…

图像与视频处理 · 电气工程与系统科学 2021-06-04 Battula Balnarsaiah , G Rajitha

In recent years, diffusion models (DMs) have become a popular method for generating synthetic data. By achieving samples of higher quality, they quickly became superior to generative adversarial networks (GANs) and the current…

计算机视觉与模式识别 · 计算机科学 2024-05-14 Denisa Qosja , Simon Wagner , Daniel O'Hagan

Video synthetic aperture radar (SAR) is attracting more attention in recent years due to its abilities of high resolution, high frame rate and advantages in continuous observation. Generally, the polar format algorithm (PFA) is an efficient…

计算机视觉与模式识别 · 计算机科学 2024-01-22 Jiawei Jiang , Yinwei Li , Shaowen Luo , Ping Li , Yiming Zhu