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Using an amalgamation of techniques from classical radar, computer vision, and deep learning, we characterize our ongoing data-driven approach to space-time adaptive processing (STAP) radar. We generate a rich example dataset of received…

This study introduces a novel frequency-based data-driven controller for adaptive optics, using power spectral density for optimization while ensuring stability criteria. It addresses disturbance rejection, command amplitude constraints and…

LiDAR point-cloud segmentation is an important problem for many applications. For large-scale point cloud segmentation, the \textit{de facto} method is to project a 3D point cloud to get a 2D LiDAR image and use convolutions to process it.…

计算机视觉与模式识别 · 计算机科学 2021-04-14 Chenfeng Xu , Bichen Wu , Zining Wang , Wei Zhan , Peter Vajda , Kurt Keutzer , Masayoshi Tomizuka

We introduce a kernel Lasso (kLasso) optimization that simultaneously accounts for spatial regularity and network sparsity to reconstruct spatial complex networks from data. Through a kernel function, the proposed approach exploits spatial…

数据分析、统计与概率 · 物理学 2017-07-05 Jie Sun , Fernando J. Quevedo , Erik Bollt

Cloud segmentation plays a crucial role in image analysis for climate modeling. Manually labeling the training data for cloud segmentation is time-consuming and error-prone. We explore to train segmentation networks with synthetic data due…

计算机视觉与模式识别 · 计算机科学 2020-11-18 Qing Lyu , Minghao Chen , Xiang Chen

Synthetic aperture radar (SAR) provides valuable information about the Earth's surface under all weather and illumination conditions. However, the inherent phenomenon of speckle and the presence of sidelobes around bright targets pose…

图像与视频处理 · 电气工程与系统科学 2026-01-06 Antoine De Paepe , Pascal Nguyen , Michael Mabelle , Cédric Saleun , Antoine Jouadé , Jean-Christophe Louvigne

Large Language Models(LLMs) excel in general tasks but struggle in specialized domains like healthcare due to limited domain-specific knowledge.Supervised Fine-Tuning(SFT) data construction for domain adaptation often relies on heuristic…

机器学习 · 计算机科学 2025-09-19 Hongxin Ding , Yue Fang , Runchuan Zhu , Xinke Jiang , Jinyang Zhang , Yongxin Xu , Xu Chu , Junfeng Zhao , Yasha Wang

Hyperspectral image produces high spectral resolution at the sacrifice of spatial resolution. Without reducing the spectral resolution, improving the resolution in the spatial domain is a very challenging problem. Motivated by the discovery…

图像与视频处理 · 电气工程与系统科学 2022-12-07 Qiang Li , Yuan Yuan , Xiuping Jia , Qi Wang

We propose an efficient deep learning method for single image defocus deblurring (SIDD) by further exploring inverse kernel properties. Although the current inverse kernel method, i.e., kernel-sharing parallel atrous convolution (KPAC), can…

计算机视觉与模式识别 · 计算机科学 2023-08-01 Peng Tang , Zhiqiang Xu , Pengfei Wei , Xiaobin Hu , Peilin Zhao , Xin Cao , Chunlai Zhou , Tobias Lasser

Limited-angle computerized tomography stands for one of the most difficult challenges in imaging. Although it opens the way to faster data acquisition in industry and less dangerous scans in medicine, standard approaches, such as the…

图像与视频处理 · 电气工程与系统科学 2025-10-07 Bernadette Hahn , Gael Rigaud , Richard Schmähl

The development of fast and accurate methods of photometric redshift estimation is a vital step towards being able to fully utilize the data of next-generation surveys within precision cosmology. In this paper we apply a specific approach…

宇宙学与河外天体物理 · 物理学 2015-05-13 P. E. Freeman , J. A. Newman , A. B. Lee , J. W. Richards , C. M. Schafer

The log-ratio (LR) operator has been widely employed to generate the difference image for synthetic aperture radar (SAR) image change detection. However, the difference image generated by this pixel-wise operator can be subject to SAR…

计算机视觉与模式识别 · 计算机科学 2020-02-19 Rongfang Wang , Jia-Wei Chen , Yule Wang , Licheng Jiao , Mi Wang

Recent development in angle-resolved photoemission spectroscopy (ARPES) technique involves spatially resolving samples while maintaining the high-resolution feature of momentum space. This development easily expands the data size and its…

仪器与探测器 · 物理学 2023-08-24 Sandy Adhitia Ekahana , Genta Indra Winata , Y. Soh , Gabriel Aeppli , Radovic Milan , Ming Shi

Self-supervised learning (SSL) has recently advanced through non-contrastive methods that couple an invariance term with variance, covariance, or redundancy-reduction penalties. While such objectives shape first- and second-order statistics…

机器学习 · 计算机科学 2026-05-18 Benyamin Ghojogh , M. Hadi Sepanj , Paul Fieguth

Although multi-view unsupervised feature selection (MUFS) has demonstrated success in dimensionality reduction for unlabeled multi-view data, most existing methods reduce feature redundancy by focusing on linear correlations among features…

机器学习 · 计算机科学 2026-01-30 Yalan Tan , Yanyong Huang , Zongxin Shen , Dongjie Wang , Fengmao Lv , Tianrui Li

Tomography is a central tool in medical applications, allowing doctors to investigate patients' interior features. The Radon transform (in two dimensions) is commonly used to model the measurement process in parallel-beam CT. Suitable…

数值分析 · 数学 2026-02-27 Richard Huber

Similarity metrics such as representational similarity analysis (RSA) and centered kernel alignment (CKA) have been used to compare layer-wise representations between neural networks. However, these metrics are confounded by the population…

机器学习 · 统计学 2022-02-02 Tianyu Cui , Yogesh Kumar , Pekka Marttinen , Samuel Kaski

Semantic segmentation networks are usually pre-trained once and not updated during deployment. As a consequence, misclassifications commonly occur if the distribution of the training data deviates from the one encountered during the robot's…

机器人学 · 计算机科学 2023-02-15 Jonas Frey , Hermann Blum , Francesco Milano , Roland Siegwart , Cesar Cadena

Data scarcity is a bottleneck to machine learning-based perception modules, usually tackled by augmenting real data with synthetic data from simulators. Realistic models of the vehicle perception sensors are hard to formulate in closed…

图像与视频处理 · 电气工程与系统科学 2019-12-03 Ahmad El Sallab , Ibrahim Sobh , Mohamed Zahran , Mohamed Shawky

Reconstructing the 3D model of a physical object typically requires us to align the depth scans obtained from different camera poses into the same coordinate system. Solutions to this global alignment problem usually proceed in two steps.…

计算机视觉与模式识别 · 计算机科学 2019-06-05 Xiangru Huang , Zhenxiao Liang , Xiaowei Zhou , Yao Xie , Leonidas Guibas , Qixing Huang