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Different models of dark matter can alter the distribution of mass in galaxy clusters in a variety of ways. However, so can uncertain astrophysical feedback mechanisms. Here we present a Machine Learning method that ''learns'' how the…

宇宙学与河外天体物理 · 物理学 2024-05-29 David Harvey

Due to the low accuracy of object detection and recognition in many intelligent surveillance systems at nighttime, the quality of night images is crucial. Compared with the corresponding daytime image, nighttime image is characterized as…

计算机视觉与模式识别 · 计算机科学 2023-07-12 Xinyi Bai , Steffi Agino Priyanka , Hsiao-Jung Tung , Yuankai Wang

In this paper we present a non-interactive algorithm to estimate a representative value for the sky background on CCD images. The method we have devised uses the mode as a robust estimator of the background brightness in sub-windows…

天体物理学 · 物理学 2011-05-23 F. Patat

We present a convolution-based algorithm for finding cosmic rays in single well-sampled astronomical images. The spatial filter used is the point spread function (approximated by a Gaussian) minus a scaled delta function, and cosmic rays…

天体物理学 · 物理学 2009-10-31 James E. Rhoads

Post-processing algorithms play a key role in pushing the detection limits of high-contrast imaging (HCI) instruments. State-of-the-art image processing approaches for HCI enable the production of science-ready images relying on…

天体物理仪器与方法 · 物理学 2018-06-06 Carlos Alberto Gomez Gonzalez , Olivier Absil , Marc van Droogenbroeck

Purpose: Artificial intelligence (AI) solutions for medical diagnosis require thorough evaluation to demonstrate that performance is maintained for all patient sub-groups and to ensure that proposed improvements in care will be delivered…

Radio-astronomical observations are increasingly contaminated by interference, and suppression techniques become essential. A powerful candidate for interference mitigation is adaptive spatial filtering. We study the effect of spatial…

天体物理学 · 物理学 2014-10-13 Amir Leshem , Alle-Jan van der Veen

In low-light environments, the performance of computer vision algorithms often deteriorates significantly, adversely affecting key vision tasks such as segmentation, detection, and classification. With the rapid advancement of deep…

计算机视觉与模式识别 · 计算机科学 2026-01-22 Fangxue Liu , Lei Fan

Indirect searches for products of dark matter annihilation and decay face the challenge of identifying an uncertain and subdominant signal in the presence of uncertain backgrounds. Two valuable approaches to this problem are (1) using…

高能天体物理现象 · 物理学 2015-12-16 Jennifer M. Siegal-Gaskins

While the efficacy of deep learning models heavily relies on data, gathering and annotating data for specific tasks, particularly when addressing novel or sensitive subjects lacking relevant datasets, poses significant time and resource…

计算机视觉与模式识别 · 计算机科学 2025-06-25 Quang-Binh Nguyen , Trong-Vu Hoang , Ngoc-Do Tran , Tam V. Nguyen , Minh-Triet Tran , Trung-Nghia Le

The study of secondary particles produced by the cosmic-ray interaction in the Earth's atmosphere is very crucial as these particles mainly constitute the background counts produced in the high-energy detectors at balloon and satellite…

地球与行星天体物理 · 物理学 2021-12-17 Ritabrata Sarkar , Abhijit Roy , Sandip K. Chakrabarti

Artificial intelligence (AI) models trained on published scientific findings have been used to invent valuable materials and targeted therapies, but they typically ignore the human scientists who continually alter the landscape of…

人工智能 · 计算机科学 2023-06-05 Jamshid Sourati , James Evans

Machine learning (automated processes that learn by example in order to classify, predict, discover or generate new data) and artificial intelligence (methods by which a computer makes decisions or discoveries that would usually require…

天体物理仪器与方法 · 物理学 2019-12-09 Christopher J. Fluke , Colin Jacobs

Anomaly detectors address the difficult problem of detecting automatically exceptions in an arbitrary background image. Detection methods have been proposed by the thousands because each problem requires a different background model. By…

计算机视觉与模式识别 · 计算机科学 2019-04-26 Axel Davy , Thibaud Ehret , Jean-Michel Morel , Mauricio Delbracio

The field of machine learning has drawn increasing interest from various other fields due to the success of its methods at solving a plethora of different problems. An application of these has been to train artificial neural networks to…

宇宙学与河外天体物理 · 物理学 2023-03-21 Augusto T. Chantada , Susana J. Landau , Pavlos Protopapas , Claudia G. Scóccola , Cecilia Garraffo

In recent years, artificial intelligence (AI) has deeply impacted various fields, including Earth system sciences. Here, AI improved weather forecasting, model emulation, parameter estimation, and the prediction of extreme events. However,…

When searching for radiological sources in an urban area, a vehicle-borne detector system will often measure complex, varying backgrounds primarily from natural gamma-ray sources. Much work has been focused on developing spectral algorithms…

数据分析、统计与概率 · 物理学 2021-11-23 M. S. Bandstra , B. J. Quiter , M. Salathe , K. J. Bilton , J. C. Curtis , S. Goldenberg , T. H. Y. Joshi

Traditionally, an object detector is applied to every part of the scene of interest, and its accuracy and computational cost increases with higher resolution images. However, in some application domains such as remote sensing, purchasing…

计算机视觉与模式识别 · 计算机科学 2020-04-08 Burak Uzkent , Christopher Yeh , Stefano Ermon

Detecting assistance from artificial intelligence is increasingly important as they become ubiquitous across complex tasks such as text generation, medical diagnosis, and autonomous driving. Aid detection is challenging for humans,…

人工智能 · 计算机科学 2025-07-16 Tyler King , Nikolos Gurney , John H. Miller , Volkan Ustun

Computer Vision, and hence Artificial Intelligence-based extraction of information from images, has increasingly received attention over the last years, for instance in medical diagnostics. While the algorithms' complexity is a reason for…

人机交互 · 计算机科学 2020-07-14 Christian Meske , Enrico Bunde