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We present a 3-dimensional matched filtering approach for the blind search of faint emission-line sources in integral-field spectroscopic datasets. The filter is designed to account for the spectrally rapidly varying background noise due to…

天体物理仪器与方法 · 物理学 2023-03-21 Edmund Christian Herenz

One of the major science cases of the MUSE integral field spectrograph is the detection of Lyman-alpha emitters at high redshifts. The on-going and planned deep fields observations will allow for one large sample of these sources. An…

天体物理仪器与方法 · 物理学 2020-02-04 David Mary , Roland Bacon , Simon Conseil , Laure Piqueras , Antony Schutz

This paper describes the Duchamp source finder, a piece of software designed to find and describe sources in 3-dimensional, spectral-line data cubes. Duchamp has been developed with HI (neutral hydrogen) observations in mind, but is widely…

天体物理仪器与方法 · 物理学 2012-04-12 Matthew T. Whiting

We present a first instalment of the MUSE-Wide survey, covering an area of 22.2 arcmin$^2$ (corresponding to $\sim$20% of the final survey) in the CANDELS/Deep area of the Chandra Deep Field South. We use the MUSE integral field…

In this paper we present the detailed formalism at the core of the Spectral Line Identification and Modelling (SLIM) within the MAdrid Data CUBe Analysis (MADCUBA) package and their main data handling functionalities. These tools have been…

天体物理仪器与方法 · 物理学 2019-11-13 S. Martín , J. Martín-Pintado , C. Blanco-Sánchez , V. M. Rivilla , A. Rodríguez-Franco , F. Rico-Villas

With the ever growing popularity of integral field unit (IFU) spectroscopy, countless observations are being performed over multiple object systems such as blank fields and galaxy clusters. With this, an increasing amount of time is being…

星系天体物理 · 物理学 2018-12-18 Alex Griffiths , Christopher J. Conselice

We present the novel Efficient Line Segment Detector and Descriptor (ELSD) to simultaneously detect line segments and extract their descriptors in an image. Unlike the traditional pipelines that conduct detection and description separately,…

计算机视觉与模式识别 · 计算机科学 2021-04-30 Haotian Zhang , Yicheng Luo , Fangbo Qin , Yijia He , Xiao Liu

LineStacker is a new open access and open source tool for stacking of spectral lines in interferometric data. LineStacker is an ensemble of CASA tasks, and can stack both 3D cubes or already extracted spectra. The algorithm is tested on…

星系天体物理 · 物理学 2020-09-30 Jean-Baptiste Jolly , Kirsten K. Knudsen , Flora Stanley

DBSCAN and OPTICS are powerful algorithms for identifying clusters of points in domains where few assumptions can be made about the structure of the data. In this paper, we leverage these strengths and introduce a new algorithm, LINSCAN,…

机器学习 · 计算机科学 2026-04-15 Andrew Dennehy , Xiaoyu Zou , Shabnam J. Semnani , Yuri Fialko , Alexander Cloninger

Probabilistic cataloging (PCAT) outperforms traditional cataloging methods on single-band optical data in crowded fields (Portillo et al. 2017). We extend our work to multiple bands, achieving greater sensitivity ($\sim$ 0.4 mag) and…

天体物理仪器与方法 · 物理学 2020-03-25 Richard M. Feder , Stephen K. N. Portillo , Tansu Daylan , Douglas Finkbeiner

Line intensity mapping (LIM) is a promising tool to efficiently probe the three-dimensional large-scale structure by mapping the aggregate emission of a spectral line from all sources that trace the matter density field. Spectral lines from…

宇宙学与河外天体物理 · 物理学 2020-10-09 Yun-Ting Cheng , Tzu-Ching Chang , James J. Bock

We present BLOBCAT, new source extraction software that utilises the flood fill algorithm to detect and catalogue blobs, or islands of pixels representing sources, in two-dimensional astronomical images. The software is designed to process…

天体物理仪器与方法 · 物理学 2015-06-05 Christopher A. Hales , Tara Murphy , James R. Curran , Enno Middelberg , Bryan M. Gaensler , Ray P. Norris

In this paper, we introduce ASDKit, a toolkit for anomalous sound detection (ASD) task. Our aim is to facilitate ASD research by providing an open-source framework that collects and carefully evaluates various ASD methods. First, ASDKit…

音频与语音处理 · 电气工程与系统科学 2025-07-15 Takuya Fujimura , Kevin Wilkinghoff , Keisuke Imoto , Tomoki Toda

We present LZIFU (LaZy-IFU), an IDL toolkit for fitting multiple emission lines simultaneously in integral field spectroscopy (IFS) data. LZIFU is useful for the investigation of the dynamical, physical and chemical properties of gas in…

We present LSD-C, a novel method to identify clusters in an unlabeled dataset. Our algorithm first establishes pairwise connections in the feature space between the samples of the minibatch based on a similarity metric. Then it regroups in…

计算机视觉与模式识别 · 计算机科学 2020-06-18 Sylvestre-Alvise Rebuffi , Sebastien Ehrhardt , Kai Han , Andrea Vedaldi , Andrew Zisserman

Spectral line intensity mapping has been proposed as a promising tool to efficiently probe the cosmic reionization and the large-scale structure. Without detecting individual sources, line intensity mapping makes use of all available…

宇宙学与河外天体物理 · 物理学 2016-12-14 Yun-Ting Cheng , Tzu-Ching Chang , James Bock , C. Matt Bradford , Asantha Cooray

This paper studies the problem of Line Segment Detection (LSD) for the characterization of line geometry in images, with the aim of learning a domain-agnostic robust LSD model that works well for any natural images. With the focus of…

计算机视觉与模式识别 · 计算机科学 2025-06-12 Zeran Ke , Bin Tan , Xianwei Zheng , Yujun Shen , Tianfu Wu , Nan Xue

We introduce CADSpotting, an effective method for panoptic symbol spotting in large-scale architectural CAD drawings. Existing approaches often struggle with symbol diversity, scale variations, and overlapping elements in CAD designs, and…

计算机视觉与模式识别 · 计算机科学 2025-09-22 Fuyi Yang , Jiazuo Mu , Yanshun Zhang , Mingqian Zhang , Junxiong Zhang , Yongjian Luo , Lan Xu , Jingyi Yu , Yujiao Shi , Yingliang Zhang

Modelling complex line emission in the interstellar medium (ISM) is a degenerate, high-dimensional problem. Here, we present McFine, a tool for automated multi-component fitting of emission lines with complex hyperfine structure, in a fully…

星系天体物理 · 物理学 2024-09-11 Thomas G. Williams , Elizabeth J. Watkins

Various studies among side-channel attacks have tried to extract information through leakages from electronic devices to reach the instruction flow of some appliances. However, previous methods highly depend on the resolution of traced…

密码学与安全 · 计算机科学 2022-08-15 Pouya Narimani , Seyed Amin Habibi , Mohammad Ali Akhaee
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