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In this paper, we propose a learning-based framework for non-rigid shape registration without correspondence supervision. Traditional shape registration techniques typically rely on correspondences induced by extrinsic proximity, therefore…

计算机视觉与模式识别 · 计算机科学 2023-11-09 Puhua Jiang , Mingze Sun , Ruqi Huang

Exascale computing delivers the raw power to simulate ever larger and more chemically realistic systems, but realizing this potential requires codes that can efficiently use thousands of processors. Our real-space multigrid (RMG) density…

材料科学 · 物理学 2026-01-19 R. J. Morelock , S. Bagchi , E. L. Briggs , W. Lu , J. Bernholc , P. Ganesh

We present a flexible, detailed model for the evolution of galactic discs in a cosmological context since $z\approx 4$, including a physically-motivated model for radial transport of gas and stars within galactic discs. This expansion…

星系天体物理 · 物理学 2019-06-19 John C. Forbes , Mark R. Krumholz , Joshua S. Speagle

We describe a numerical technique and accompanying open-source Python software package called RydIQule. RydIQule uses a directional graph, relying on adjacency matrices and path-finding to generate a Hamiltonian for multi-level atomic…

Traditional feature matching methods such as scale-invariant feature transform (SIFT) usually use image intensity or gradient information to detect and describe feature points; however, both intensity and gradient are sensitive to nonlinear…

计算机视觉与模式识别 · 计算机科学 2018-04-26 Jiayuan Li , Qingwu Hu , Mingyao Ai

The direct detection of circumstellar discs through high-contrast imaging provides key insights into the history and dynamics of planetary systems. Pole-on discs, especially faint debris discs, are difficult to detect and require careful…

地球与行星天体物理 · 物理学 2025-09-04 S. Stasevic , J. Milli , J. Mazoyer , A. -M. Lagrange , S. Bergeon

Data processing pipelines represent an important slice of the astronomical software library that include chains of processes that transform raw data into valuable information via data reduction and analysis. In this work we present Corral,…

天体物理仪器与方法 · 物理学 2017-08-09 Juan B. Cabral , Bruno Sánchez , Martín Beroiz , Mariano Domínguez , Marcelo Lares , Sebastián Gurovich , Pablo Granitto

Context. Inferring spectral parameters from X-ray data is one of the cornerstones of high-energy astrophysics, and is achieved using software stacks that have been developed over the last twenty years and more. However, as models get more…

天体物理仪器与方法 · 物理学 2024-10-23 Simon Dupourqué , Didier Barret , Camille M. Diez , Sébastien Guillot , Erwan Quintin

Medical image computing software is essential for identifying imaging biomarkers that can support diagnosis, prognosis, treatment planning, and clinical research. However, the lack of standardized, user-friendly, and reproducible software…

计算机视觉与模式识别 · 计算机科学 2026-05-26 Mohammad Salmanpour , Mehrdad Oveisi , Isaac Shiri , Arman Rahmim

PyIRD is a Python-based pipeline for reducing spectroscopic data obtained with IRD (InfraRed Doppler; Kotani et al. (2018)) and REACH (Rigorous Exoplanetary Atmosphere Characterization with High dispersion coronagraphy; Kotani et al.…

天体物理仪器与方法 · 物理学 2026-01-21 Yui Kasagi , Hajime Kawahara , Ziying Gu , Teruyuki Hirano , Takayuki Kotani , Masayuki Kuzuhara , Kento Masuda

The manufacturing of light-emitting diodes is a complex semiconductor-manufacturing process, interspersed with different measurements. Among the employed measurements, photoluminescence imaging has several advantages, namely being a…

计算机视觉与模式识别 · 计算机科学 2020-03-03 Maike Lorena Stern , Hans Lindberg , Klaus Meyer-Wegener

We present a statistical study of the filamentary structures of the cosmic web in the large hydro-dynamical simulations Illustris-TNG, Illustris, and Magneticum at redshift z=0. We focus on the radial distribution of the galaxy density…

宇宙学与河外天体物理 · 物理学 2020-09-30 Daniela Galárraga-Espinosa , Nabila Aghanim , Mathieu Langer , Céline Gouin , Nicola Malavasi

Luminous InfraRed Galaxies (LIRGs) are particularly important for studying the build-up of the stellar mass from z=1 to z=0. We perform a multiwavelength study of an LIRGs sample in the Extended Chandra Deep Field South at z=0.7, selected…

宇宙学与河外天体物理 · 物理学 2015-05-19 Elodie Giovannoli , Véronique Buat , Stefan Noll , Denis Burgarella , Benjamin Magnelli

The pyFAI package has been designed to reduce X-ray diffraction images into powder diffraction curves to be further processed by scientists. This contribution describes how to convert an image into a radial profile using the Numpy package,…

天体物理仪器与方法 · 物理学 2014-12-22 Jérôme Kieffer , Giannis Ashiotis

We present PlanetPack, a new software tool that we developed to facilitate and standardize the advanced analysis of radial velocity (RV) data for the goal of exoplanets detection, characterization, and basic dynamical $N$-body simulations.…

天体物理仪器与方法 · 物理学 2013-08-06 Roman V. Baluev

Raman spectroscopy is a non-destructive and label-free chemical analysis technique, which plays a key role in the analysis and discovery cycle of various branches of science. Nonetheless, progress in Raman spectroscopic analysis is still…

Robust local feature representations are essential for spatial intelligence tasks such as robot navigation and augmented reality. Establishing reliable correspondences requires descriptors that provide both high discriminative power and…

计算机视觉与模式识别 · 计算机科学 2026-01-15 Haodi Yao , Fenghua He , Ning Hao , Yao Su

Stellar streams are sensitive probes of the Galactic potential. The likelihood of a stream model given stream data is often assessed using simulations. However, comparing to simulations is challenging when even the stream paths can be hard…

星系天体物理 · 物理学 2023-05-03 Nathaniel Starkman , Jo Bovy , Jeremy J. Webb , Daniela Calvetti , Erkki Somersalo

This work provides the community with an easily executable open-source Python package designed to automize the evaluation of Interfacial Phonons (InterPhon). Its strategy of arbitrarily defining the interfacial region and periodicity…

材料科学 · 物理学 2021-07-20 In Won Yeu , Gyuseung Han , Kun Hee Ye , Cheol Seong Hwang , Jung-Hae Choi

We present a modular, extensible likelihood framework for spectroscopic inference based on synthetic model spectra. The subtraction of an imperfect model from a continuously sampled spectrum introduces covariance between adjacent datapoints…

太阳与恒星天体物理 · 物理学 2015-10-21 Ian Czekala , Sean M. Andrews , Kaisey S. Mandel , David W. Hogg , Gregory M. Green
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