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Plane detection from depth images is a crucial subtask with broad robotic applications, often accomplished by iterative methods such as Random Sample Consensus (RANSAC). While RANSAC is a robust strategy with strong probabilistic…

计算机视觉与模式识别 · 计算机科学 2025-09-17 Daoxin Zhong , Jun Li , Meng Yee Michael Chuah

In astronomy, spectroscopy consists of observing an astrophysical source and extracting its spectrum of electromagnetic radiation. Once extracted, a model is fit to the spectra to measure the observables, leading to an understanding of the…

CONTEXT: Combining high-contrast imaging with high-resolution spectroscopy offers a powerful way to detect and characterize exoplanets around nearby stars, despite challenges linked to their faintness. Instruments like VLT/SPHERE are state…

天体物理仪器与方法 · 物理学 2025-04-10 S. Martos , A. Bidot , A. Carlotti , D. Mouillet

\textcolor{blue}{This is the pre-acceptance version, to read the final version please go to \href{https://ieeexplore.ieee.org/document/11156113}{IEEE Transactions on Geoscience and Remote Sensing on IEEE Xplore}.} Infrared small target…

计算机视觉与模式识别 · 计算机科学 2025-12-30 Guoyi Zhang , Guangsheng Xu , Siyang Chen , Han Wang , Xiaohu Zhang

Accurate parameter estimation from cosmic microwave background data requires reliable likelihood modeling, particularly at large angular scales where angular power spectrum estimators exhibit non-Gaussian statistics. We present a novel…

宇宙学与河外天体物理 · 物理学 2025-12-23 Giacomo Galloni , Paolo Campeti , Luca Pagano , Martina Gerbino , Massimiliano Lattanzi , Paolo Natoli

We use simple toy models of far-IR dust emission to estimate the accuracy to which the polarization of the cosmic microwave background can be recovered using multi-frequency fits, if the parametric form chosen for the fitted dust model…

宇宙学与河外天体物理 · 物理学 2016-08-03 A. Kogut , D. J. Fixsen

Wide-field survey instruments are used to efficiently observe large regions of the sky. To achieve the necessary field of view, and to provide a higher signal-to-noise ratio for faint sources, many modern instruments are undersampled.…

天体物理学 · 物理学 2008-11-26 N. Barron , M. Borysow , K. Beyerlein , M. Brown , C. Weaverdyck , W. Lorenzon , M. Schubnell , G. Tarle , A. Tomasch

In this paper, we focus our attention on the following question: How well can we recover the power spectrum of the cosmic microwave background from the maps of a given experiment?. Each experiment is described by a a pixelization scale, a…

天体物理学 · 物理学 2016-08-15 D. Sáez , J. V. Arnau

We use XMM-Newton blank-sky and closed-cover background data to explore the background subtraction methods for large extended sources filling the EPIC field of view, such as nearby galaxy clusters, for which local background estimation is…

天体物理学 · 物理学 2009-11-11 J. Nevalainen , M. Markevitch , D. Lumb

Characterizing soil moisture (SM) around drip irrigation pipes is crucial for precise and optimized farming. Machine learning (ML) approaches are particularly suitable for this task as they can reduce uncertainties caused by soil conditions…

图像与视频处理 · 电气工程与系统科学 2024-06-07 Mohammad Ramezaninia , Mohammadreza Shams , Mohammad Zoofaghari

Images captured under low-light conditions manifest poor visibility, lack contrast and color vividness. Compared to conventional approaches, deep convolutional neural networks (CNNs) perform well in enhancing images. However, being solely…

计算机视觉与模式识别 · 计算机科学 2021-01-05 Aditya Arora , Muhammad Haris , Syed Waqas Zamir , Munawar Hayat , Fahad Shahbaz Khan , Ling Shao , Ming-Hsuan Yang

Rapid growth in the field of quantitative digital image analysis is paving the way for researchers to make precise measurements about objects in an image. To compute quantities from the image such as the density of compressed materials or…

计算机视觉与模式识别 · 计算机科学 2017-07-31 Marylesa Howard , Margaret C. Hock , B. T. Meehan , Leora Dresselhaus-Cooper

Atmospheric correction is a fundamental task in remote sensing because observations are taken either of the atmosphere or looking through the atmosphere. Atmospheric correction errors can significantly alter the spectral signature of the…

图像与视频处理 · 电气工程与系统科学 2022-03-23 Fangcao Xu , Jian Sun , Guido Cervone , Mark Salvador

In this paper, we investigate the potential of estimating the soil-moisture content based on VNIR hyperspectral data combined with LWIR data. Measurements from a multi-sensor field campaign represent the benchmark dataset which contains…

计算机视觉与模式识别 · 计算机科学 2018-10-02 Sina Keller , Felix M. Riese , Johanna Stötzer , Philipp M. Maier , Stefan Hinz

The primordial stochastic gravitational wave background (SGWB) carries first-hand messages of early-universe physics, possibly including effects from inflation, preheating, cosmic strings, electroweak symmetry breaking, and etc. However,…

宇宙学与河外天体物理 · 物理学 2020-10-16 Zhen Pan , Huan Yang

The Spherical gaseous detector (or Spherical Proportional Counter, SPC) is a novel type of par- ticle detector, with a broad range of applications. Its main features include a very low energy threshold independent of the volume (due to its…

In many signal processing applications, including communications, sonar, radar, and localization, a fundamental problem is the detection of a signal of interest in background noise, known as signal detection [1] [2]. A simple version of…

信号处理 · 电气工程与系统科学 2025-12-16 Tom Anders , Hiten Prakash Kothari , R. Michael Buehrer

We propose to bridge the gap between semi-supervised and unsupervised image recognition with a flexible method that performs well for both generalized category discovery (GCD) and image clustering. Despite the overlap in motivation between…

计算机视觉与模式识别 · 计算机科学 2025-03-19 Gihan Jayatilaka , Abhinav Shrivastava , Matthew Gwilliam

Mid-infrared astronomy from the ground faces critical challenges in accurately detecting and quantifying sources due to the dominant spatially and time-variable background noise. Moreover, chopping and nodding, the traditional methods for…

天体物理仪器与方法 · 物理学 2026-04-27 R. A. R. Moens , A. G. M. Pietrow , B. Brandl , R. Van de Plas

Human respiratory rate and its pattern convey essential information about the physical and psychological states of the subject. Abnormal breathing can indicate fatal health issues leading to further diagnosis and treatment. Wireless…

信号处理 · 电气工程与系统科学 2024-04-17 Md Zobaer Islam , Brenden Martin , Carly Gotcher , Tyler Martinez , John F. O'Hara , Sabit Ekin