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Satellite Image Time Series (SITS) data has proven effective for agricultural tasks due to its rich spectral and temporal nature. In this study, we tackle the task of stress detection in sugar-beet fields using a fully unsupervised…

Computer Vision and Pattern Recognition · Computer Science 2025-07-21 Bhumika Laxman Sadbhave , Philipp Vaeth , Denise Dejon , Gunther Schorcht , Magda Gregorová

Upcoming astronomical surveys such as the Large Synoptic Survey Telescope (LSST) will rely on photometric classification to identify the majority of the transients and variables that they discover. We present a set of techniques for…

Instrumentation and Methods for Astrophysics · Physics 2020-01-08 Kyle Boone

The pioneer space mission for photometric exoplanet searches, CoRoT, steadily monitors about 12000 stars in each of its fields of view. Transit detection algorithms are applied to derive promising planetary candidates, which are then…

Astrophysics · Physics 2009-11-13 S. Renner , H. Rauer , A. Erikson , P. Hedelt , P. Kabath , R. Titz , H. Voss

Astronomical transients are stellar objects that become temporarily brighter on various timescales and have led to some of the most significant discoveries in cosmology and astronomy. Some of these transients are the explosive deaths of…

Machine Learning · Computer Science 2021-12-20 Daniel Muthukrishna , Kaisey S. Mandel , Michelle Lochner , Sara Webb , Gautham Narayan

Efficient identification and follow-up of astronomical transients is hindered by the need for humans to manually select promising candidates from data streams that contain many false positives. These artefacts arise in the difference images…

Astronomical transients are intrinsically interesting things to study. Fast optical transients (microsecond timescale) are a largely unexplored field of optical astronomy mainly due to the fact that large optical telescopes are…

High Energy Astrophysical Phenomena · Physics 2015-06-05 Sean Griffin , David Hanna , Adam Gilbert

Detection of moving sources over complicated background is important for several reasons. First is measuring the astrophysical motion of the source. Second is that such motion resulting from atmospheric scintillation, color refraction, or…

Instrumentation and Methods for Astrophysics · Physics 2024-03-18 O. Springer , E. O. Ofek , B. Zackay , R. Konno , A. Sharon , G. Nir , A. Rubin , A. Haddad , J. Friedman , L. Schein Lubomirsky , I. Aizenberg , A. Krassilchtchikov , A. Gal-Yam

Video feedback provides a wealth of information about surgical procedures and is the main sensory cue for surgeons. Scene understanding is crucial to computer assisted interventions (CAI) and to post-operative analysis of the surgical…

Computer Vision and Pattern Recognition · Computer Science 2022-02-23 Maria Grammatikopoulou , Evangello Flouty , Abdolrahim Kadkhodamohammadi , Gwenol'e Quellec , Andre Chow , Jean Nehme , Imanol Luengo , Danail Stoyanov

We introduce a transformer-based neural network for the accurate classification of real and bogus transient detections in astronomical images. This network advances beyond the conventional convolutional neural network (CNN) methods, widely…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Adi Inada , Masao Sako , Tatiana Acero-Cuellar , Federica Bianco

We present a novel method for extracting moving objects from TESS data using machine learning. Our approach uses two stacked 3D U-Nets with skip connections, which we call a W-Net, to filter background and identify pixels containing moving…

Earth and Planetary Astrophysics · Physics 2026-05-13 Brian P. Powell , Jorge Martinez-Palomera , Amy Tuson , Christina Hedges , Jessie Dotson , Jordan Caraballo-Vega

A fleet of nanosatellites using precise timing synchronization provided by the Global Positioning System is a new concept for monitoring the gamma-ray sky that can achieve both all-sky coverage and good localization accuracy. We are…

Artificially generated induced pluripotent stem cells (iPSCs) from somatic cells play an important role for disease modeling and drug screening of neurodegenerative diseases. Astrocytes differentiated from iPSCs are important targets to…

Image and Video Processing · Electrical Eng. & Systems 2024-02-07 Haoran Li , Jiahua Shi , Huaming Chen , Bo Du , Simon Maksour , Gabrielle Phillips , Mirella Dottori , Jun Shen

This research addresses the growing challenge of artificial satellite trail interference in ground-based astronomical observations by developing an efficient deep learning identification method. With the proliferation of satellite…

Instrumentation and Methods for Astrophysics · Physics 2025-09-05 Hua-Jian Yu , Jia-Lei Zheng , Yuan Fang

Astrophysical radio transients are excellent probes of extreme physical processes originating from compact sources within our Galaxy and beyond. Radio frequency signals emitted from these objects provide a means to study the intervening…

Instrumentation and Methods for Astrophysics · Physics 2011-11-29 W. Armour , A. Karastergiou , M. Giles , C. Williams , A. Magro , K. Zagkouris , S. Roberts , S. Salvini , F. Dulwich , B. Mort

The next generation of observatories will facilitate the discovery of new types of astrophysical transients. The detection of such phenomena, whose characteristics are presently poorly constrained, will hinge on the ability to perform blind…

High Energy Astrophysical Phenomena · Physics 2019-08-06 Iftach Sadeh

Scanning Transmission Electron Microscopy (STEM) enables the observation of atomic arrangements at sub-angstrom resolution, allowing for atomically resolved analysis of the physical and chemical properties of materials. However, due to the…

Computer Vision and Pattern Recognition · Computer Science 2025-04-04 Hesong Li , Ziqi Wu , Ruiwen Shao , Tao Zhang , Ying Fu

Semantic segmentation plays a crucial role in enabling comprehensive scene understanding for robotic systems. However, generating annotations is challenging, requiring labels for every pixel in an image. In scenarios like autonomous…

Computer Vision and Pattern Recognition · Computer Science 2024-04-23 Mostafa ElAraby , Ali Harakeh , Liam Paull

Smartwatches or fitness trackers have garnered a lot of popularity as potential health tracking devices due to their affordable and longitudinal monitoring capabilities. To further widen their health tracking capabilities, in recent years…

Astronomical images are essential for exploring and understanding the universe. Optical telescopes capable of deep observations, such as the Hubble Space Telescope, are heavily oversubscribed in the Astronomical Community. Images also often…

Instrumentation and Methods for Astrophysics · Physics 2020-11-25 Antonia Vojtekova , Maggie Lieu , Ivan Valtchanov , Bruno Altieri , Lyndsay Old , Qifeng Chen , Filip Hroch

Wide field small aperture telescopes are widely used for optical transient observations. Detection and classification of astronomical targets in observed images are the most important and basic step. In this paper, we propose an…

Instrumentation and Methods for Astrophysics · Physics 2020-05-06 Peng Jia , Qiang Liu , Yongyang Sun