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This paper deals with the error analysis of a novel navigation algorithm that uses as input the sequence of images acquired from a moving camera and a Digital Terrain (or Elevation) Map (DTM/DEM). More specifically, it has been shown that…

Systems and Control · Computer Science 2013-04-29 Oleg Kupervasser , Alexander Rubinstein

The response of the antenna is a source of uncertainty in measurements with the Experiment to Detect the Global EoR Signature (EDGES). We aim to validate the beam model of the low-band (50-100 MHz) dipole antenna with comparisons between…

Instrumentation and Methods for Astrophysics · Physics 2021-07-07 Nivedita Mahesh , Judd D. Bowman , Thomas J. Mozdzen , Alan E. E. Rogers , Raul A. Monsalve , Steven G. Murray , David Lewis

The upcoming Surface Water Ocean Topography (SWOT) satellite altimetry mission is expected to yield two-dimensional high-resolution measurements of Sea Surface Height (SSH), thus allowing for a better characterization of the mesoscale and…

Atmospheric and Oceanic Physics · Physics 2020-05-05 Redouane Lguensat , Ronan Fablet , Julien Le Sommer , Sammy Metref , Emmanuel Cosme , Kaouther Ouenniche , Lucas Drumetz , Jonathan Gula

Any type of non-buoyant material in the ocean is transported horizontally by currents during its sinking journey. This lateral transport can be far from negligible for small sinking velocities. To estimate its magnitude and direction, the…

Atmospheric and Oceanic Physics · Physics 2020-09-15 Peter D. Nooteboom , Philippe Delandmeter , Erik van Sebille , Peter K. Bijl , Henk A. Dijkstra , Anna S. von der Heydt

We present an all-sky map of the synchrotron spectral index and curvature between 45 and 2300 MHz at a resolution of 1 degree calculated from a combination of numerous partial sky empirical measurements. We employ a least-squares parametric…

Astrophysics of Galaxies · Physics 2026-04-08 Melis O. Irfan , Giuseppe Puglisi

Commercial off-the-shelf (COTS) Global Navigation Satellite System (GNSS) receivers face significant limitations under high-dynamic conditions, particularly in high-acceleration environments such as those experienced by launch vehicles.…

Signal Processing · Electrical Eng. & Systems 2025-10-28 Laura Train , Rodrigo Castellanos , Miguel Gómez-López

In an attempt to place an explicit constraint on dark matter models, we define and estimate a mean surface density of a dark halo within a radius of maximum circular velocity, which is derivable for various galaxies with any dark-matter…

Astrophysics of Galaxies · Physics 2015-06-24 Kohei Hayashi , Masashi Chiba

Satellite-based remote sensing missions have revolutionized our understanding of the Ocean state and dynamics. Among them, space-borne altimetry provides valuable Sea Surface Height (SSH) measurements, used to estimate surface geostrophic…

Machine Learning · Computer Science 2024-05-07 Theo Archambault , Arthur Filoche , Anastase Charantonis , Dominique Bereziat , Sylvie Thiria

Self-supervised depth estimation has drawn much attention in recent years as it does not require labeled data but image sequences. Moreover, it can be conveniently used in various applications, such as autonomous driving, robotics,…

Computer Vision and Pattern Recognition · Computer Science 2021-06-08 Shaocheng Jia , Xin Pei , Wei Yao , S. C. Wong

The use of small unmanned aircraft systems (sUAS) for applications in the field of precision agriculture has demonstrated the need to produce temporally consistent imagery to allow for quantitative comparisons. In order for these aerial…

Image and Video Processing · Electrical Eng. & Systems 2018-04-26 Baabak Mamaghani , Geoffrey Sasaki , Ryan Connal , Kevin Kha , Jackson Knappen , Ryan Hartzell , Evan Marcellus , Timothy Bauch , Nina Raqueno , Carl Salvaggio

Stable and accurate tracking is essential for marine robotics, yet Global Navigation Satellite System (GNSS) signals vanish immediately below the sea surface. Traditional alternatives suffer from error accumulation, high computational…

Robotics · Computer Science 2026-03-10 Shuo Wen , Edwin Meriaux , Mariana Sosa Guzmán , Zhizun Wang , Junming Shi , Gregory Dudek

Learning the fine-scale details of a coastal ocean simulation from a coarse representation is a challenging task. For real-world applications, high-resolution simulations are necessary to advance understanding of many coastal processes,…

Image and Video Processing · Electrical Eng. & Systems 2026-02-09 Zhi-Song Liu , Markus Büttner , Matthew Scarborough , Eirik Valseth , Vadym Aizinger , Bernhard Kainz , Andreas Rupp

Current design constraints have encouraged the studies of aeroacoustic fields around compressible jet flows. The present work addresses the numerical study of unsteady turbulent jet flows as a preparation for future aeroacoustic analyses of…

Fluid Dynamics · Physics 2023-01-13 Sami Yamouni , Carlos Junqueira-Junior , Joao Luiz F. Azevedo , William R. Wolf

The analysis of signals in directional dark matter (DM) detectors typically assumes that the directions of nuclear recoils can be measured in the Galactic rest frame. However, this is not possible with all directional detection…

Cosmology and Nongalactic Astrophysics · Physics 2017-10-18 Ciaran A. J. O'Hare , Bradley J. Kavanagh , Anne M. Green

Direct SLAM methods have shown exceptional performance on odometry tasks. However, they are susceptible to dynamic lighting and weather changes while also suffering from a bad initialization on large baselines. To overcome this, we propose…

Computer Vision and Pattern Recognition · Computer Science 2019-11-28 Lukas von Stumberg , Patrick Wenzel , Qadeer Khan , Daniel Cremers

In this paper, an LSTM autoencoder-based architecture is utilized for drowsiness detection with ResNet-34 as feature extractor. The problem is considered as anomaly detection for a single subject; therefore, only the normal driving…

Computer Vision and Pattern Recognition · Computer Science 2022-09-13 Gülin Tüfekci , Alper Kayabaşi , Erdem Akagündüz , İlkay Ulusoy

We present a pipeline for geomorphological analysis that uses structure from motion (SfM) and deep learning on close-range aerial imagery to estimate spatial distributions of rock traits (size, roundness, and orientation) along a tectonic…

Space-based high contrast imaging mission concepts for studying rocky exoplanets in reflected light are currently under community study. We develop an inverse modeling framework to estimate the science return of such missions given…

In this work, eddy diffusivity is derived from the energy spectra for the stable and convective regimes in the planetary boundary layer. The energy spectra are obtained from a spectral model for the inertial subrange that considers the…

Atmospheric and Oceanic Physics · Physics 2024-08-20 A. Goulart , J. M. S. Suarez , M. J. Lazo , J. C. Marques

This paper proposes a spatiotemporal architecture with a deep neural network (DNN) for road surface conditions and types classification using LiDAR. It is known that LiDAR provides information on the reflectivity and number of point clouds…

Image and Video Processing · Electrical Eng. & Systems 2023-08-14 Ju Won Seo , Jin Sung Kim , Chung Choo Chung