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Gammapy is a Python package for high-level gamma-ray data analysis built on Numpy, Scipy and Astropy. It enables us to analyze gamma-ray data and to create sky images, spectra and lightcurves, from event lists and instrument response…

The WorldWide Telescope(WWT) is a scientific visualization platform which can browse deep space images, star catalogs, and planetary remote sensing data from different observation facilities in a three-dimensional virtual scene. First…

Instrumentation and Methods for Astrophysics · Physics 2020-03-05 Yunfei Xu , Chenzhou Cui , Dongwei Fan , Shanshan Li , Changhua Li , Jun Han , Linying Mi , Boliang He , Hanxi Yang , Yihan Tao , Sisi Yang , Lan He

Heliophysics image data largely relies on a forty-year-old ecosystem built on the venerable Flexible Image Transport System (FITS) data standard. While many in situ measurements use newer standards, they are difficult to integrate with…

Weak lensing surveys have become a powerful tool for mapping mass distributions and constraining the expansion history of our Universe, but continuum surveys must average over a large number of galaxies to average down the ellipticity noise…

Astrophysics · Physics 2009-11-11 Miguel F. Morales

The performance of hyperspectral unmixing may be constrained by low spatial resolution, which can be enhanced using super-resolution in a multitask learning way. However, integrating super-resolution and unmixing directly may suffer two…

Computer Vision and Pattern Recognition · Computer Science 2025-09-16 Ruiying Li , Bin Pan , Qiaoying Qu , Xia Xu , Zhenwei Shi

The growth of the amount of medical image data produced on a daily basis in modern hospitals forces the adaptation of traditional medical image analysis and indexing approaches towards scalable solutions. The number of images and their…

Distributed, Parallel, and Cluster Computing · Computer Science 2015-10-26 Dimitrios Markonis , Roger Schaer , Ivan Eggel , Henning Müller , Adrien Depeursinge

Low-frequency radio observations of neutral hydrogen during and before the epoch of cosmic reionization will provide ~ 1000 quasi-independent source planes, each of precisely known redshift, if a resolution of ~1 arcminutes or better can be…

Astrophysics · Physics 2017-03-15 R. Benton Metcalf , S. D. M. White

Nowadays, Earth Observation systems provide a multitude of heterogeneous remote sensing data. How to manage such richness leveraging its complementarity is a crucial chal- lenge in modern remote sensing analysis. Data Fusion techniques deal…

Computer Vision and Pattern Recognition · Computer Science 2018-07-02 Raffaele Gaetano , Dino Ienco , Kenji Ose , Remi Cresson

Data augmentation is now an essential part of the image training process, as it effectively prevents overfitting and makes the model more robust against noisy datasets. Recent mixing augmentation strategies have advanced to generate the…

Computer Vision and Pattern Recognition · Computer Science 2023-06-30 Minsoo Kang , Suhyun Kim

Precise, pixel-wise geolocalization of astronaut photography is critical to unlocking the potential of this unique type of remotely sensed Earth data, particularly for its use in disaster management and climate change research. Recent works…

Computer Vision and Pattern Recognition · Computer Science 2024-07-04 Gabriele Berton , Gabriele Goletto , Gabriele Trivigno , Alex Stoken , Barbara Caputo , Carlo Masone

High-resolution (HR) image harmonization is of great significance in real-world applications such as image synthesis and image editing. However, due to the high memory costs, existing dense pixel-to-pixel harmonization methods are mainly…

Computer Vision and Pattern Recognition · Computer Science 2023-12-01 Jianqi Chen , Yilan Zhang , Zhengxia Zou , Keyan Chen , Zhenwei Shi

We describe a hybrid Fourier/direct space convolution algorithm for compact radial (azimuthally symmetric) kernels on the sphere. For high resolution maps covering a large fraction of the sky, our implementation takes advantage of the…

Instrumentation and Methods for Astrophysics · Physics 2018-03-28 Franz Elsner , Benjamin D. Wandelt

We describe OHBA Software Library for the analysis of electrophysiological data (osl-ephys). This toolbox builds on top of the widely used MNE-Python package and provides unique analysis tools for magneto-/electro-encephalography (M/EEG)…

Quantitative Methods · Quantitative Biology 2024-10-30 Mats W. J. van Es , Chetan Gohil , Andrew J. Quinn , Mark W. Woolrich

I present a fast Python tool, SpectRes, for carrying out the resampling of spectral flux densities and their associated uncertainties onto different wavelength grids. The function works with any grid of wavelength values, including…

Instrumentation and Methods for Astrophysics · Physics 2017-05-16 A. C. Carnall

Optical interferometers provide multiple wavelength measurements. In order to fully exploit the spectral and spatial resolution of these instruments, new algorithms for image reconstruction have to be developed. Early attempts to deal with…

Instrumentation and Methods for Astrophysics · Physics 2015-06-11 Éric Thiébaut , Ferréol Soulez , Loïc Denis

Hyperspectral images contain mixed pixels due to low spatial resolution of hyperspectral sensors. Spectral unmixing problem refers to decomposing mixed pixels into a set of endmembers and abundance fractions. Due to nonnegativity constraint…

Computer Vision and Pattern Recognition · Computer Science 2014-08-13 Roozbeh Rajabi , Hassan Ghassemian

We describe a method to subdivide the surface of a sphere into spherical triangles of similar, but not identical, shapes and sizes. The Hierarchical Triangular Mesh (HTM) is a quad-tree that is particularly good at supporting searches at…

Databases · Computer Science 2007-05-23 Alexander S. Szalay , Jim Gray , George Fekete , Peter Z. Kunszt , Peter Kukol , Ani Thakar

Multiplexed immunofluorescence microscopy captures detailed measurements of spatially resolved, multiple biomarkers simultaneously, revealing tissue composition and cellular interactions in situ among single cells. The growing scale and…

Software Engineering · Computer Science 2025-06-03 Fang Liu , Rui He , Andrei Bombin , Ahmad B. Abdallah , Omar Eldaghar , Tommy R. Sheeley , Sam E. Ying , George Zaki

Magnetic Resonance Fingerprinting (MRF) is an emerging technology with the potential to revolutionize radiology and medical diagnostics. In comparison to traditional magnetic resonance imaging (MRI), MRF enables the rapid, simultaneous,…

We address the question of to what accuracy remote sensing images of the surface of planets can be matched, so that the possible displacement of features on the surface can be accurately measured. This is relevant in the context of the…

Astrophysics · Physics 2007-05-23 Giuseppe Vacanti , Ernst-Jan Buis
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