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Detection of relative changes in circulating blood volume is important to guide resuscitation and manage a variety of medical conditions including sepsis, trauma, dialysis and congestive heart failure. Recent studies have shown that…

Image and Video Processing · Electrical Eng. & Systems 2018-03-21 Ebrahim Karami , Mohamed Shehata , Andrew Smith

The goal of the audio-visual segmentation (AVS) task is to segment the sounding objects in the video frames using audio cues. However, current fusion-based methods have the performance limitations due to the small receptive field of…

Sound · Computer Science 2023-07-26 Jinxiang Liu , Chen Ju , Chaofan Ma , Yanfeng Wang , Yu Wang , Ya Zhang

Some optical measurements require relative timing of intensity variations with accuracy much finer than the camera frame period. One motivating example is dynamic aurora, where different prompt emissions are expected to originate from…

Space Physics · Physics 2026-05-29 Juha Vierinen , Pavithiran Sivasothy , Björn Gustavsson

VIO has been widely used and researched to control and aid the automation of navigation of robots especially in the absence of absolute position measurements, such as GPS. However, when observable landmarks in the scene lie far away from…

Robotics · Computer Science 2020-09-11 Marco Karrer , Margarita Chli

The Space multi-band Variable Object Monitor (SVOM) is a proposed Chinese astronomical satellite, dedicated to the detection, localization and measurement of the gamma-ray bursts (GRBs) on the cosmological scale. An efficient algorithm is…

Instrumentation and Methods for Astrophysics · Physics 2014-11-20 T. Wang , Y. Qiu , H. Cai , J. Deng

Insights into Jupiter's atmospheric dynamics are vital for understanding planetary meteorology and exoplanetary gas giant atmospheres. To study these dynamics, we require high-resolution, photometrically calibrated observations. Over the…

Instrumentation and Methods for Astrophysics · Physics 2025-12-01 Aditya Pratap Singh , Shrey Shah , Ramanakumar Sankar , Emma Dahl , Gerald Eichstädt , Georgios Georgakis , Bernadette Bucher

Image saturation has been an issue for several instruments in solar astronomy, mainly at EUV wavelengths. However, with the launch of the Atmospheric Imaging Assembly (AIA) as part of the payload of the Solar Dynamic Observatory (SDO) image…

Solar and Stellar Astrophysics · Physics 2019-09-25 Sabrina Guastavino , Michele Piana , Anna Maria Massone , Richard Schwartz , Federico Benvenuto

Using images at multiple mid-infrared wavelengths, acquired in May 2018 using the VISIR instrument on ESO's Very Large Telescope (VLT), we study Jupiter's pole-to-pole thermal, chemical and aerosol structure in the troposphere and…

Variational autoencoders (VAEs) are a popular class of deep generative models with many variants and a wide range of applications. Improvements upon the standard VAE mostly focus on the modelling of the posterior distribution over the…

Machine Learning · Computer Science 2022-11-02 James Langley , Miguel Monteiro , Charles Jones , Nick Pawlowski , Ben Glocker

The Galileo Project's acoustic monitoring, omni-directional system (AMOS) aids in the detection and characterization of aerial phenomena. It uses a multi-band microphone suite spanning infrasonic to ultrasonic frequencies, providing an…

Instrumentation and Methods for Astrophysics · Physics 2023-05-31 Andrew Mead , Sarah Little , Paul Sail , Michelle Tu , Wesley Andrés Watters , Abigail White , Richard Cloete

Open-vocabulary image segmentation aims to partition an image into semantic regions according to arbitrary text descriptions. However, complex visual scenes can be naturally decomposed into simpler parts and abstracted at multiple levels of…

Computer Vision and Pattern Recognition · Computer Science 2023-12-22 Xudong Wang , Shufan Li , Konstantinos Kallidromitis , Yusuke Kato , Kazuki Kozuka , Trevor Darrell

One way of imaging X-ray emission from solar flares is to measure Fourier components of the spatial X-ray source distribution. We present a new Compressed Sensing-based algorithm named VIS_CS, which reconstructs the spatial distribution…

Solar and Stellar Astrophysics · Physics 2017-11-01 Simon Felix , Roman Bolzern , Marina Battaglia

Geostationary hyperspectral satellites generate terabytes of data daily, creating critical challenges for storage, transmission, and distribution to the scientific community. We present a variational autoencoder (VAE) approach that achieves…

Machine Learning · Computer Science 2025-11-25 Core Francisco Park , Manuel Perez-Carrasco , Caroline Nowlan , Cecilia Garraffo

In astronomical imaging, the low photon count of exposures necessitates extensive post-processing steps, including contamination removal and denoising. This paper evaluates deep-learning denoising methods that can be trained without clean…

Instrumentation and Methods for Astrophysics · Physics 2026-04-21 Omid Vaheb , Sebastien Fabbro , Stark Draper

Angular differential imaging (ADI) (Marois et al. 2006) is an observational technique in high contrast imaging where the telescope is used in pupil tracking mode so that the image of the sky rotates with respect to the optical surfaces.…

Earth and Planetary Astrophysics · Physics 2017-11-28 Michael Bottom , Garreth Ruane , Dimitri Mawet

Recent research is revealing data-sonification as a promising complementary approach to vision, benefiting both data perception and interpretation. We present herakoi, a novel open-source software that uses machine learning to allow…

Instrumentation and Methods for Astrophysics · Physics 2024-12-13 Michele Ginolfi , Luca Di Mascolo , Anita Zanella

Modern radio telescopes combine thousands of receivers, long-distance networks, large-scale compute hardware, and intricate software. Due to this complexity, failures occur relatively frequently. In this work we propose novel use of…

Instrumentation and Methods for Astrophysics · Physics 2020-05-28 Michael Mesarcik , Albert-Jan Boonstra , Christiaan Meijer , Walter Jansen , Elena Ranguelova , Rob V. van Nieuwpoort

This article describes a fast iterative algorithm for image denoising and deconvolution with signal-dependent observation noise. We use an optimization strategy based on variable splitting that adapts traditional Gaussian noise-based…

Computer Vision and Pattern Recognition · Computer Science 2012-04-16 Ayan Chakrabarti , Todd Zickler

Color ratios derived from molecular hydrogen emissions provide valuable diagnostics for the energy of precipitating electrons and the structure of the auroral atmosphere. We aim to characterize the horizontal and vertical variability of…

Earth and Planetary Astrophysics · Physics 2026-03-25 J. Vinesse , B. Bonfond , B. Benmahi , A. Moirano , D. Grodent , T. K. Greathouse , V. Hue , G. Sicorello , L. A. Head , G. R. Gladstone , M. W. Davis

Ultrasound super-localization microscopy techniques presented in the last few years enable non-invasive imaging of vascular structures at the capillary level by tracking the flow of ultrasound contrast agents (gas microbubbles). However,…

Tissues and Organs · Quantitative Biology 2016-08-10 Avinoam Bar-Zion , Charles Tremblay-Darveau , Oren Solomon , Dan Adam , Yonina C. Eldar