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Deep learning-based single image super-resolution (SISR) methods face various challenges when applied to 3D medical volumetric data (i.e., CT and MR images) due to the high memory cost and anisotropic resolution, which adversely affect…

Image and Video Processing · Electrical Eng. & Systems 2020-01-06 Cheng Peng , Wei-An Lin , Haofu Liao , Rama Chellappa , Shaohua Kevin Zhou

We present a methodology for the determination of empirical masses of single stars through the combination of three direct observables with Gaia and TESS: (i) the surface gravity via granulation-driven variations in the TESS light curve,…

Solar and Stellar Astrophysics · Physics 2017-12-27 Keivan G. Stassun , Enrico Corsaro , Joshua Pepper , Scott Gaudi

Rotating-view thick-slice acquisition is highly SNR-efficient for mesoscale diffusion MRI (dMRI) but requires numerous rotating views to satisfy Nyquist sampling, resulting in long scan time. We propose a self-supervised Spatial-Angular…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Yinzhe Wu , Hongyu Rui , Fanwen Wang , Jiahao Huang , Zi Wang , Guang Yang

Intelligent Reflecting Surfaces (IRS) promise low-power coverage extension, yet practical deployments must curb hardware complexity and control overhead. This paper quantifies the performance impact of two cost-saving measures, column-wise…

Emerging Technologies · Computer Science 2025-12-01 Yizhi He , Sayed Amir Hoseini , Mahbub Hassan

Application of the radial velocity (RV) technique in the near infrared is valuable because of the diminished impact of stellar activity at longer wavelengths, making it particularly advantageous for the study of late-type stars but also for…

Instrumentation and Methods for Astrophysics · Physics 2021-06-02 Asa G. Stahl , Shih-Yun Tang , Christopher M. Johns-Krull , L. Prato , Joe Llama , Gregory N. Mace , Jae Joon Lee , Heeyoung Oh , Jessica Luna , Daniel T. Jaffe

We present results from 21 cm radio synthesis imaging of 28 spiral galaxies from the DiskMass Survey obtained with the VLA, WSRT, and GMRT facilities. We detail the observations and data reduction procedures and present a brief analysis of…

Medical imaging is limited by acquisition time and scanning equipment. CT and MR volumes, reconstructed with thicker slices, are anisotropic with high in-plane resolution and low through-plane resolution. We reveal an intriguing phenomenon…

Image and Video Processing · Electrical Eng. & Systems 2024-05-07 Haofei Song , Xintian Mao , Jing Yu , Qingli Li , Yan Wang

The fitting of spectral lines is a common step in the analysis of line observations and simulations. However, the observational noise, the presence of multiple velocity components, and potentially large data sets make it a non-trivial task.…

Astrophysics of Galaxies · Physics 2024-03-08 Mika Juvela , Devika Tharakkal

Context: Dynamical studies of irradiated circumstellar disks require an accurate treatment of radiation transport to, for example, properly determine cooling and fragmentation properties. The radiation transport algorithm should be as fast…

Solar and Stellar Astrophysics · Physics 2013-06-20 Rolf Kuiper , Ralf S. Klessen

Context. Medium-resolution IFS, such as MUSE at the VLT, are equipped to detect the emission lines of faint accreting companions when associated with dedicated stellar halo subtraction methods. We recently proposed a new approach based on…

Instrumentation and Methods for Astrophysics · Physics 2025-11-26 R. Julo , M. Bonnefoy , F. Chatelain , O. Flasseur , O. J. J. Michel , S. Jorquera , P. Delorme , G. Chauvin

Recent deep learning-based image completion methods, including both inpainting and outpainting, have demonstrated promising results in restoring corrupted images by effectively filling various missing regions. Among these, Generative…

Computer Vision and Pattern Recognition · Computer Science 2025-02-11 Yike Zhang , Eduardo Davalos , Jack Noble

The X-ray Imaging Spectroscopy Mission (XRISM) provides the best spectral resolution with which to study Sulfur (S) K-shell photoabsorption features from the interstellar medium (ISM). For the first time, we demonstrate the high-signal…

Stereo matching and semantic segmentation are significant tasks in binocular satellite 3D reconstruction. However, previous studies primarily view these as independent parallel tasks, lacking an integrated multitask learning framework. This…

Computer Vision and Pattern Recognition · Computer Science 2024-10-02 Qingyuan Yang , Guanzhou Chen , Xiaoliang Tan , Tong Wang , Jiaqi Wang , Xiaodong Zhang

This paper joins a series compiling consistent emission line measurements of large AGN spectral databases, useful for reliable statistical studies of emission line properties. It is preceded by emission line measurements of 993 spectra from…

We present spectral calculations of non-LTE accretion disk models appropriate for high luminosity stellar mass black hole X-ray binary systems. We first use a dissipation profile based on scaling the results of shearing box simulations of…

High Energy Astrophysical Phenomena · Physics 2015-06-15 Ted Tao , Omer Blaes

We present a physically-based absorption-line model for the spectroscopic study of the intergalactic medium (IGM). This model adopts results from Cloudy simulations and theoretical calculations by Gnat and Sternberg (2007) to examine the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Yangsen Yao , J. Michael Shull , Charles W. Danforth , Brian A. Keeney , John T. Stocke

Infrared fine-structure emission lines from trace metals are powerful diagnostics of the interstellar medium in galaxies. We explore the possibility of studying the redshifted far-IR fine-structure line emission using the three-dimensional…

Astrophysics of Galaxies · Physics 2015-06-22 Bade D. Uzgil , James E. Aguirre , Charles M. Bradford , Adam Lidz

High precision spectrographs can enable not only the discovery of exoplanets, but can also provide a fundamental measurement in Galactic dynamics. Over about ten year baselines, the expected change in the line-of-sight velocity due to the…

Study of pre-stellar cloud evolution requires observations with high sensitivity and resolution, and regions of high-mass star formation are particularly challenging. We wish to quantify, to what accuracy the physical conditions within a…

Astrophysics of Galaxies · Physics 2022-10-12 M. Juvela , E. Mannfors , T. Liu , L. V. Toth

In this work, we use multi-view aerial images to reconstruct the geometry, lighting, and material of facades using neural signed distance fields (SDFs). Without the requirement of complex equipment, our method only takes simple RGB images…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Zixuan Xie , Rengan Xie , Rong Li , Kai Huang , Pengju Qiao , Jingsen Zhu , Xu Yin , Qi Ye , Wei Hua , Yuchi Huo , Hujun Bao