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The discovery and subsequent study of optical counterparts to transient sources is crucial for their complete astrophysical understanding. Various gamma ray burst (GRB) detectors, and more notably the ground--based gravitational wave…

天体物理仪器与方法 · 物理学 2022-09-29 Javed Rana , Akshat Singhal , Bhooshan Gadre , Varun Bhalerao , Sukanta Bose

High-quality digital terrain models derived from airborne laser scanning (ALS) data are essential for a wide range of geospatial analyses, and their generation typically relies on robust ground filtering (GF) to separate point clouds across…

计算机视觉与模式识别 · 计算机科学 2026-04-24 Nannan Qin , Pengjie Tao , Haiyan Guan , Zhizhong Kang , Lingfei Ma , Xiangyun Hu , Jonathan Li

Organ segmentation of plant point clouds is a prerequisite for the high-resolution and accurate extraction of organ-level phenotypic traits. Although the fast development of deep learning has boosted much research on segmentation of plant…

计算机视觉与模式识别 · 计算机科学 2025-10-28 Xin Yang , Ruiming Du , Hanyang Huang , Jiayang Xie , Pengyao Xie , Leisen Fang , Ziyue Guo , Nanjun Jiang , Yu Jiang , Haiyan Cen

The inspection of infrastructure for corrosion remains a task that is typically performed manually by qualified engineers or inspectors. This task of inspection is laborious, slow, and often requires complex access. Recently, deep learning…

计算机视觉与模式识别 · 计算机科学 2022-05-12 B. Burton , W. T. Nash , N. Birbilis

Image segmentation aims to partition an image according to the objects in the scene and is a fundamental step in analysing very high spatial-resolution (VHR) remote sensing imagery. Current methods struggle to effectively consider land…

计算机视觉与模式识别 · 计算机科学 2024-01-08 Xianwei Lv , Claudio Persello , Wangbin Li , Xiao Huang , Dongping Ming , Alfred Stein

Data scarcity hinders deep learning for medical imaging. We propose a framework for breast cancer classification in thermograms that addresses this using a Diffusion Probabilistic Model (DPM) for data augmentation. Our DPM-based…

计算机视觉与模式识别 · 计算机科学 2025-09-10 Sepehr Salem , M. Moein Esfahani , Jingyu Liu , Vince Calhoun

Aero-engine is the core component of aircraft and other spacecraft. The high-speed rotating blades provide power by sucking in air and fully combusting, and various defects will inevitably occur, threatening the operation safety of…

计算机视觉与模式识别 · 计算机科学 2024-09-24 Hongbing Shang , Qixiu Yang , Chuang Sun , Xuefeng Chen , Ruqiang Yan

In this paper, we fill the research gap by adopting state-of-the-art computer vision techniques for the data extraction stage in a data mining system. As shown in Fig.1, this stage contains two subtasks, namely, plot element detection and…

计算机视觉与模式识别 · 计算机科学 2021-05-06 Weihong Ma , Hesuo Zhang , Shuang Yan , Guangshun Yao , Yichao Huang , Hui Li , Yaqiang Wu , Lianwen Jin

We give an overview of ISINA: INTEGRAL Source Identification Network Algorithm. This machine learning algorithm, using Random Forests, is applied to the IBIS/ISGRI dataset in order to ease the production of unbiased future soft gamma-ray…

天体物理学 · 物理学 2008-11-07 S. Scaringi , A. J. Bird , D. J. Clark , A. J. Dean , A. B. Hill , V. A. McBride , S. E. Shaw

Modern 3D semantic scene graph estimation methods utilize ground truth 3D annotations to accurately predict target objects, predicates, and relationships. In the absence of given 3D ground truth representations, we explore leveraging only…

计算机视觉与模式识别 · 计算机科学 2025-08-12 Qi Xun Yeo , Yanyan Li , Gim Hee Lee

A novel algorithm to detect coherent structures with sparse Lagrangian particle tracking data, using Voronoi tessellation and techniques from spectral graph theory, is tested. Neighbouring tracer particles are naturally identified through…

流体动力学 · 物理学 2021-07-29 F. A. C. Martins , D. E. Rival

The analysis of individual X-ray sources that appear in a crowded field can easily be compromised by the misallocation of recorded events to their originating sources. Even with a small number of sources, that nonetheless have overlapping…

天体物理仪器与方法 · 物理学 2021-07-14 Antoine D. Meyer , David A. van Dyk , Vinay L. Kashyap , Luis F. Campos , David E. Jones , Aneta Siemiginowska , Andreas Zezas

Aims: We analyze INTEGRAL-ISGRI data in order to probe the hard X-ray emission (above 20 keV) from point sources in the Cyg OB2 region and to investigate the putative non-thermal high-energy emission from early-type stars (Wolf-Rayet and…

天体物理学 · 物理学 2009-11-13 M. De Becker , G. Rauw , J. M. Pittard , H. Sana , I. R. Stevens , G. E. Romero

Reliable detection and classification of power system events are critical for maintaining grid stability and situational awareness. Existing approaches often depend on limited labeled datasets, which restricts their ability to generalize to…

信号处理 · 电气工程与系统科学 2026-05-22 Yi Hu , Zheyuan Cheng

Unsupervised semantic segmentation aims to discover groupings within and across images that capture object and view-invariance of a category without external supervision. Grouping naturally has levels of granularity, creating ambiguity in…

计算机视觉与模式识别 · 计算机科学 2022-04-26 Tsung-Wei Ke , Jyh-Jing Hwang , Yunhui Guo , Xudong Wang , Stella X. Yu

Radio channel modeling is one of the most fundamental aspects in the process of designing, optimizing, and simulating wireless communication networks. In this field, long-established approaches such as analytical channel models and ray…

网络与互联网体系结构 · 计算机科学 2021-12-16 Benjamin Sliwa , Melina Geis , Caner Bektas , Melisa Lopéz , Preben Mogensen , Christian Wietfeld

Ultra-high-energy photons play an important role in probing astrophysical models and beyond-Standard-Model scenarios. We report updated limits on the diffuse photon flux using Telescope Array's Surface Detector data collected over 14 years…

星系天体物理 · 物理学 2026-04-24 Telescope Array Collaboration , R. U. Abbasi , T. Abu-Zayyad , M. Allen , J. W. Belz , D. R. Bergman , F. Bradfield , I. Buckland , W. Campbell , B. G. Cheon , K. Endo , A. Fedynitch , T. Fujii , K. Fujisue , K. Fujita , M. Fukushima , G. Furlich , A. Galvez Urena , Z. Gerber , N. Globus , T. Hanaoka , W. Hanlon , N. Hayashida , H. He , K. Hibino , R. Higuchi , D. Ikeda , D. Ivanov , S. Jeong , C. C. H. Jui , K. Kadota , F. Kakimoto , O. Kalashev , K. Kasahara , Y. Kawachi , K. Kawata , I. Kharuk , E. Kido , H. B. Kim , J. H. Kim , J. H. Kim , S. W. Kim , R. Kobo , I. Komae , K. Komatsu , K. Komori , A. Korochkin , C. Koyama , M. Kudenko , M. Kuroiwa , Y. Kusumori , M. Kuznetsov , Y. J. Kwon , K. H. Lee , M. J. Lee , B. Lubsandorzhiev , J. P. Lundquist , H. Matsushita , A. Matsuzawa , J. A. Matthews , J. N. Matthews , K. Mizuno , M. Mori , S. Nagataki , K. Nakagawa , M. Nakahara , H. Nakamura , T. Nakamura , T. Nakayama , Y. Nakayama , K. Nakazawa , T. Nonaka , S. Ogio , H. Ohoka , N. Okazaki , M. Onishi , A. Oshima , H. Oshima , S. Ozawa , I. H. Park , K. Y. Park , M. Potts , M. Przybylak , M. S. Pshirkov , J. Remington , C. Rott , G. I. Rubtsov , D. Ryu , H. Sagawa , N. Sakaki , R. Sakamoto , T. Sako , N. Sakurai , S. Sakurai , D. Sato , K. Sekino , T. Shibata , J. Shikita , H. Shimodaira , H. S. Shin , K. Shinozaki , J. D. Smith , P. Sokolsky , B. T. Stokes , T. A. Stroman , H. Tachibana , K. Takahashi , M. Takeda , R. Takeishi , A. Taketa , M. Takita , Y. Tameda , K. Tanaka , M. Tanaka , M. Teramoto , S. B. Thomas , G. B. Thomson , P. Tinyakov , I. Tkachev , T. Tomida , S. Troitsky , Y. Tsunesada , S. Udo , F. R. Urban , M. Vrabel , D. Warren , K. Yamazaki , Y. Zhezher , Z. Zundel , J. Zvirzdin

We describe an algorithm to optimally extract individual spectra of blended sources from a long slit spectrum. A semi-analytic model for the spatial profile is used: a Voigt profile for the undersampled core with a numerical correction…

天体物理学 · 物理学 2009-11-07 R. I. Hynes

We propose a new method for identifying active galactic nuclei (AGN) in low mass ($\rm M_*\leq10^{10}M_\odot$) galaxies. This method relies on spectral energy distribution (SED) fitting to identify galaxies whose radio flux density has an…

Astronomical imaging based on photon count data is a non-trivial task. In this context we show how to denoise, deconvolve, and decompose multi-domain photon observations. The primary objective is to incorporate accurate and well motivated…

天体物理仪器与方法 · 物理学 2018-11-21 Daniel Pumpe , Martin Reinecke , Torsten A. Enßlin
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