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相关论文: Carving out the low surface brightness universe wi…

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Hyperspectral imaging with high spectral resolution plays an important role in finding objects, identifying materials, or detecting processes. The decrease of the widths of spectral bands leads to a decrease in the signal-to-noise ratio…

图像与视频处理 · 电气工程与系统科学 2021-09-21 Lina Zhuang , Michael K. Ng

Background Remover (BGR) is a novel software tool developed as a plugin to the well-known ImageJ program and designed to address the challenges of analysing fluorescent microscopy images characterized by low signal-to-noise ratios and…

仪器与探测器 · 物理学 2026-04-29 Anna Kilian , Paweł Bilski , Małgorzata Sankowska

I describe a new, open-source astronomical image-fitting program called Imfit, specialized for galaxies but potentially useful for other sources, which is fast, flexible, and highly extensible. A key characteristic of the program is an…

天体物理仪器与方法 · 物理学 2015-06-22 Peter Erwin

In the last few years, with the rapid development of deep learning technologies, supervised methods based on convolutional neural networks have greatly enhanced the performance of medical image denoising. However, these methods require…

图像与视频处理 · 电气工程与系统科学 2025-03-10 Langrui Zhou , Ziteng Zhou , Xinyu Huang , Huiru Wang , Xiangyu Zhang , Guang Li

Faint tidal features around galaxies record their merger and interaction histories over cosmic time. Due to their low surface brightnesses and complex morphologies, existing automated methods struggle to detect such features and most work…

星系天体物理 · 物理学 2018-11-29 Mike Walmsley , Annette M. N. Ferguson , Robert G. Mann , Chris J. Lintott

We present a method that allows us for the first time to estimate the signal-to-noise ratio (SNR) of the harmonic-space galaxy bispectrum induced by gravity, a complementary probe to already well established Fourier-space clustering…

宇宙学与河外天体物理 · 物理学 2021-01-08 Francesco Montanari , Stefano Camera

Current self-supervised denoising techniques achieve impressive results, yet their real-world application is frequently constrained by substantial computational and memory demands, necessitating a compromise between inference speed and…

计算机视觉与模式识别 · 计算机科学 2025-10-20 Tomáš Chobola , Julia A. Schnabel , Tingying Peng

Scientific imaging often involves long acquisition times to obtain high-quality data, especially when probing complex, heterogeneous systems. However, reducing acquisition time to increase throughput inevitably introduces significant noise…

人工智能 · 计算机科学 2025-05-14 Petrus H. Zwart , Tamas Varga , Odeta Qafoku , James A. Sethian

While computer vision and machine learning have made great progress, their robustness is still challenged by two key issues: data distribution shift and label noise. When domain generalization (DG) encounters noise, noisy labels further…

计算机视觉与模式识别 · 计算机科学 2025-12-12 Wang Lu , Jindong Wang

We address key points for an efficient implementation of likelihood codes for modern weak lensing large-scale structure surveys. Specifically, we focus on the joint weak lensing convergence power spectrum-bispectrum probe and we tackle the…

宇宙学与河外天体物理 · 物理学 2020-04-02 Matteo Rizzato , Karim Benabed , Francis Bernardeau , Fabien Lacasa

Infrared small target detection and segmentation (IRSTDS) is a critical yet challenging task in defense and civilian applications, owing to the dim, shapeless appearance of targets and severe background clutter. Recent CNN-based methods…

计算机视觉与模式识别 · 计算机科学 2026-02-25 Maoxun Yuan , Duanni Meng , Ziteng Xi , Tianyi Zhao , Shiji Zhao , Yimian Dai , Xingxing Wei

In this paper we introduce a system for unsupervised object discovery and segmentation of RGBD-images. The system models the sensor noise directly from data, allowing accurate segmentation without sensor specific hand tuning of measurement…

机器人学 · 计算机科学 2017-10-20 Johan Ekekrantz , Nils Bore , Rares Ambrus , John Folkesson , Patric Jensfelt

Near-infrared imaging is a powerful technique in observational astronomy, but the bright background, primarily from the Earth\'s atmosphere, makes the detection of faint features particularly challenging. To recover low surface brightness…

The construction of the James Webb Space Telescope has brought attention to infrared astronomy and cosmology. The potential information about our universe to be gained by this mission and future infrared telescopes is staggering, but…

天体物理仪器与方法 · 物理学 2014-01-31 Nathan Lenssen

In machine learning approach to image denoising a network is trained to recover a clean image from a noisy one. In this paper a novel structure is proposed based on training multiple specialized networks as opposed to existing structures…

图像与视频处理 · 电气工程与系统科学 2020-12-01 Seyed Mohsen Hosseini

In this paper, we present a successful implementation of a subtraction-noise projection method into a simple, simulated data analysis pipeline of a gravitational-wave search. We investigate the problem to reveal a weak stochastic background…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Jan Harms , Christoph Mahrdt , Markus Otto , Malte Priess

Scanning Electron Microscopy (SEM) is critical in nanotechnology, materials science, and biological imaging due to its high spatial resolution and depth of focus. Signal-to-noise ratio (SNR) is an essential parameter in SEM because it…

机器学习 · 计算机科学 2025-10-10 K. S. Sim , I. Bukhori , D. C. Y. Ong , K. B. Gan

Weak gravitational lensing has the potential to constrain cosmological parameters to high precision. However, as shown by the Shear TEsting Programmes (STEP) and GRavitational lEnsing Accuracy Testing (GREAT) Challenges, measuring galaxy…

宇宙学与河外天体物理 · 物理学 2015-06-04 Tomasz Kacprzak , Joe Zuntz , Barnaby Rowe , Sarah Bridle , Alexandre Refregier , Adam Amara , Lisa Voigt , Michael Hirsch

Low-light images suffer from severe noise and low illumination. Current deep learning models that are trained with real-world images have excellent noise reduction, but a ratio parameter must be chosen manually to complete the enhancement…

图像与视频处理 · 电气工程与系统科学 2020-04-23 Qingxu Fu , Xiaoguang Di , Yu Zhang

Low-light raw denoising is an important and valuable task in computational photography where learning-based methods trained with paired real data are mainstream. However, the limited data volume and complicated noise distribution have…

计算机视觉与模式识别 · 计算机科学 2022-08-19 Hansen Feng , Lizhi Wang , Yuzhi Wang , Hua Huang