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Photometric variability detection is often considered as a hypothesis testing problem: an object is variable if the null-hypothesis that its brightness is constant can be ruled out given the measurements and their uncertainties. Uncorrected…

Instrumentation and Methods for Astrophysics · Physics 2018-01-25 Ilya N. Pashchenko , Kirill V. Sokolovsky , Panagiotis Gavras

In this paper, a novel low-complexity detection algorithm for spatial modulation (SM), referred to as the minimum-distance of maximum-length (m-M) algorithm, is proposed and analyzed. The proposed m-M algorithm is a smart searching method…

Information Theory · Computer Science 2019-07-22 Ibrahim Al-Nahhal , Ertugrul Basar , Octavia A. Dobre , Salama Ikki

Image/video denoising in low-light scenes is an extremely challenging problem due to limited photon count and high noise. In this paper, we propose a novel approach with contrastive learning to address this issue. Inspired by the success of…

Computer Vision and Pattern Recognition · Computer Science 2023-05-08 Taoyong Cui , Yuhan Dong

Oriented object detection for multi-spectral imagery faces significant challenges due to differences both within and between modalities. Although existing methods have improved detection accuracy through complex network architectures, their…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Leiyu Wang , Biao Jin , Feng Huang , Liqiong Chen , Zhengyong Wang , Xiaohai He , Honggang Chen

Low complexity joint estimation of synchronization impairments and channel in a single-user MIMO-OFDM system is presented in this letter. Based on a system model that takes into account the effects of synchronization impairments such as…

Information Theory · Computer Science 2013-04-30 Renu Jose , Sooraj K. Ambat , K. V. S. Hari

In recent years, machine learning (ML) algorithms have become widespread in all the fields of remote sensing (RS) and earth observation (EO). This has allowed the rapid development of new procedures to solve problems affecting these…

Artificial Intelligence · Computer Science 2024-10-28 Alessandro Sebastianelli , Maria Pia Del Rosso , Silvia Liberata Ullo , Paolo Gamba

Object detection in remote sensing, especially in aerial images, remains a challenging problem due to low image resolution, complex backgrounds, and variation of scale and angles of objects in images. In current implementations, multi-scale…

Computer Vision and Pattern Recognition · Computer Science 2018-10-19 Peng Sun , Guang Chen , Guerdan Luke , Yi Shang

As a natural disaster, landslide often brings tremendous losses to human lives, so it urgently demands reliable detection of landslide risks. When detecting relic landslides that present important information for landslide risk warning,…

Computer Vision and Pattern Recognition · Computer Science 2025-06-27 Yiming Zhou , Yuexing Peng , Daqing Ge , Junchuan Yu , Wei Xiang

Machine learning models deployed in the wild can be challenged by out-of-distribution (OOD) data from unknown classes. Recent advances in OOD detection rely on distance measures to distinguish samples that are relatively far away from the…

Machine Learning · Computer Science 2023-12-25 Soumya Suvra Ghosal , Yiyou Sun , Yixuan Li

In this paper, we propose an efficient and discriminative model for salient object detection. Our method is carried out in a stepwise mechanism based on both divergence background and compact foreground cues. In order to effectively enhance…

Computer Vision and Pattern Recognition · Computer Science 2017-12-01 Chenxing Xia , Hanling Zhang , Keqin Li

A major threat to satellites is space debris with their low mass and high rotational speed. Accordingly, the short observation time of these objects is a major limitation in space research for appropriate detection and decision. As a…

Signal Processing · Electrical Eng. & Systems 2022-11-09 M. Roueinfar , M. H. Kahaei

Bird's eye view (BEV) is widely adopted by most of the current point cloud detectors due to the applicability of well-explored 2D detection techniques. However, existing methods obtain BEV features by simply collapsing voxel or point…

Computer Vision and Pattern Recognition · Computer Science 2023-01-30 Dihe Huang , Ying Chen , Yikang Ding , Jinli Liao , Jianlin Liu , Kai Wu , Qiang Nie , Yong Liu , Chengjie Wang , Zhiheng Li

Visual degradation caused by rain streak artifacts in low-light conditions significantly hampers the performance of nighttime surveillance and autonomous navigation. Existing image deraining techniques are primarily designed for daytime…

Computer Vision and Pattern Recognition · Computer Science 2025-09-18 Huichun Liu , Xiaosong Li , Yang Liu , Xiaoqi Cheng , Haishu Tan

Optical Character Recognition (OCR) systems have been widely used in various applications for extracting semantic information from images. To give the user more control over their privacy, an on-device solution is needed. The current…

Computer Vision and Pattern Recognition · Computer Science 2022-01-03 Rachit S Munjal , Arun D Prabhu , Nikhil Arora , Sukumar Moharana , Gopi Ramena

Towards sixth-generation networks (6G), satellite communication systems, especially based on Low Earth Orbit (LEO) networks, become promising due to their unique and comprehensive capabilities. These advantages are accompanied by a variety…

Signal Processing · Electrical Eng. & Systems 2021-07-14 Selen Gecgel , Gunes Karabulut Kurt

Microscopic characterizations, such as Scanning Electron Microscopy (SEM), are widely used in scientific research for visualizing and analyzing microstructures. Determining the scale bars is an important first step of accurate SEM analysis;…

Computer Vision and Pattern Recognition · Computer Science 2025-10-14 Yuxuan Chen , Ruotong Yang , Zhengyang Zhang , Mehreen Ahmed , Yanming Wang

Recent studies of optimization methods and GNC of spacecraft near small bodies focusing on descent, landing, rendezvous, etc., with key safety constraints such as line-of-sight conic zones and soft landings have shown promising results;…

Optimization and Control · Mathematics 2020-05-22 Steven van Leeuwen

We consider a multi-object detection problem over a sensor network (SNET) with limited range sensors. This problem complements the widely considered decentralized detection problem where all sensors observe the same object. While the…

Information Theory · Computer Science 2016-11-17 Erhan B. Ermis , Venkatesh Saligrama

In autonomous driving, LiDAR sensors are vital for acquiring 3D point clouds, providing reliable geometric information. However, traditional sampling methods of preprocessing often ignore semantic features, leading to detail loss and ground…

Computer Vision and Pattern Recognition · Computer Science 2025-06-11 Hao Jing , Anhong Wang , Lijun Zhao , Yakun Yang , Donghan Bu , Jing Zhang , Yifan Zhang , Junhui Hou

The visual-based SLAM (Simultaneous Localization and Mapping) is a technology widely used in applications such as robotic navigation and virtual reality, which primarily focuses on detecting feature points from visual images to construct an…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Qiong Chang , Xinyuan Chen , Xiang Li , Weimin Wang , Jun Miyazaki