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The Legacy Survey of Space and Time, to be conducted with the Vera C. Rubin Observatory, is poised to revolutionize our understanding of the Solar System by providing an unprecedented wealth of data on various objects, including the elusive…

Earth and Planetary Astrophysics · Physics 2024-12-04 Richard Cloete , Peter Vereš , Abraham Loeb

Hashing methods have been widely investigated for fast approximate nearest neighbor searching in large data sets. Most existing methods use binary vectors in lower dimensional spaces to represent data points that are usually real vectors of…

Computer Vision and Pattern Recognition · Computer Science 2019-04-19 Dayong Tian , Dacheng Tao

The IAG solar observatory is producing high-fidelity, ultra-high-resolution spectra (R>500000) of the spatially resolved surface of the Sun using a Fourier Transform spectrometer (FTS). The radial velocity (RV) calibration of these spectra…

Instrumentation and Methods for Astrophysics · Physics 2023-11-16 Michael Debus , Sebastian Schäfer , Ansgar Reiners

We propose a pipeline for combined multi-class object geolocation and height estimation from street level RGB imagery, which is considered as a single available input data modality. Our solution is formulated via Markov Random Field…

Computer Vision and Pattern Recognition · Computer Science 2023-05-16 Matej Ulicny , Vladimir A. Krylov , Julie Connelly , Rozenn Dahyot

In a multiuser MIMO broadcast channel, the rate performance is affected by the multiuser interference when the Channel State Information at the Transmitter (CSIT) is imperfect. To tackle the interference problem, a Rate-Splitting (RS)…

Information Theory · Computer Science 2016-11-15 Mingbo Dai , Bruno Clerckx , David Gesbert , Giuseppe Caire

Current VHR(Very High Resolution) satellite images enable the detailed monitoring of the earth and can capture the ongoing works of railway construction. In this paper, we present an integrated framework applied to monitoring the railway…

Computer Vision and Pattern Recognition · Computer Science 2019-08-30 Rui Guo , Ronghua Liu , Na Li , Wei Liu

Multi-Image Super-Resolution (MISR) is a crucial yet challenging research task in the remote sensing community. In this paper, we address the challenging task of Multi-Image Super-Resolution in Remote Sensing (MISR-RS), aiming to generate a…

Computer Vision and Pattern Recognition · Computer Science 2024-11-08 Zhihui Zhang , Jinhui Pang , Jianan Li , Xiaoshuai Hao

In this paper, we propose time-discounted schemes for full information estimation (FIE) and moving horizon estimation (MHE) that are robustly globally asymptotically stable (RGAS). We consider general nonlinear system dynamics with…

Systems and Control · Electrical Eng. & Systems 2023-01-20 Sven Knuefer , Matthias A. Mueller

This paper proposes a long range-frequency hopping spread spectrum (LR-FHSS) transceiver design for the Direct-to-Satellite Internet of Things (DtS-IoT) communication system. The DtS-IoT system has recently attracted attention as a…

Systems and Control · Electrical Eng. & Systems 2024-03-22 Sooyeob Jung , Seongah Jeong , Jinkyu Kang , Gyeongrae Im , Sangjae Lee , Mi-Kyung Oh , Joon Gyu Ryu , Joonhyuk Kang

Inter-satellite links (ISLs) are adopted in global navigation satellite systems (GNSSs) for high-precision orbit determination and space-based end-to-end telemetry telecommand control and communications. Due to limited onboard ISL…

Systems and Control · Electrical Eng. & Systems 2021-03-25 Z. Yan , K. Zhao , W. Li , C. Kang , J. Zheng , H. Yang , S. Du

Under stereo settings, the problem of image super-resolution (SR) and disparity estimation are interrelated that the result of each problem could help to solve the other. The effective exploitation of correspondence between different views…

Computer Vision and Pattern Recognition · Computer Science 2021-06-03 Qinyan Dai , Juncheng Li , Qiaosi Yi , Faming Fang , Guixu Zhang

In distributed deep learning with data parallelism, synchronizing gradients at each training step can cause a huge communication overhead, especially when many nodes work together to train large models. Local gradient methods, such as Local…

Machine Learning · Computer Science 2024-04-15 Xinran Gu , Kaifeng Lyu , Sanjeev Arora , Jingzhao Zhang , Longbo Huang

The Isochronous Mass Spectrometry (IMS) is a powerful tool for mass measurements of exotic nuclei with half-lives as short as several tens of micro-seconds in storage rings. In order to improve the mass resolving power while preserving the…

Recently several methods were proposed for sparse optimization which make careful use of second-order information [10, 28, 16, 3] to improve local convergence rates. These methods construct a composite quadratic approximation using Hessian…

Machine Learning · Computer Science 2015-07-15 Katya Scheinberg , Xiaocheng Tang

The Geo High Resolution Camera (GHRC) aboard ISRO GSAT-29 satellite is a state-of-the-art 6-band Visible and Near Infrared (VNIR) imager in geostationary orbit at 55degE longitude. It provides a ground sampling distance of 55 meters at…

Image and Video Processing · Electrical Eng. & Systems 2024-10-30 Ankur Garg , Nitesh Thapa , Ghansham Sangar , Neha Gaur , Meenakshi Sarkar , S. Manthira Moorthi , Debajyoti Dhar

SfM (Structure from Motion) has been extensively used for UAV (Unmanned Aerial Vehicle) image orientation. Its efficiency is directly influenced by feature matching. Although image retrieval has been extensively used for match pair…

Computer Vision and Pattern Recognition · Computer Science 2023-07-11 San Jiang , Yichen Ma , Qingquan Li , Wanshou Jiang , Bingxuan Guo , Lelin Li , Lizhe Wang

Achieving coherent integration in distributed Internet of Things (IoT) sensing networks requires precise synchronization to jointly compensate clock offsets and radio-frequency (RF) phase errors. Conventional two-step protocols suffer from…

Signal Processing · Electrical Eng. & Systems 2026-03-31 Kailun Tian , Kaili Jiang , Dechang Wang , Yuxin Zhao , Yuxin Shang , Hancong Feng , Bin Tang

Reconfigurable intelligent surface (RIS)-empowered communications is on the rise and is a promising technology envisioned to aid in 6G and beyond wireless communication networks. RISs can manipulate impinging waves through their…

Signal Processing · Electrical Eng. & Systems 2022-05-19 Emre Arslan , Ibrahim Yildirim , Fatih Kilinc , Ertugrul Basar

This paper proposes a geodesic-distance-based feature that encodes global information for improved video segmentation algorithms. The feature is a joint histogram of intensity and geodesic distances, where the geodesic distances are…

Computer Vision and Pattern Recognition · Computer Science 2017-04-04 Hieu Le , Vu Nguyen , Chen-Ping Yu , Dimitris Samaras

Localization which uses holographic multiple input multiple output surface such as reconfigurable intelligent surface (RIS) has gained increasing attention due to its ability to accurately localize users in non-line-of-sight conditions.…

Signal Processing · Electrical Eng. & Systems 2024-01-15 Mengyuan Cao , Haobo Zhang , Boya Di , Hongliang Zhang