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Mid-infrared spectroscopy provides many important diagnostics on gas and dust features in a wide variety of astrophysical objects. The Spitzer Infrared Spectrograph observed more than 20000 targets with wavelengths as low as 5.2um and as…

Instrumentation and Methods for Astrophysics · Physics 2023-09-14 Vianney Lebouteiller

The Immersion GRating INfrared Spectrometer (IGRINS) is a compact, high-resolution (R~45,000) near-infrared spectrograph spanning 1.45 to 2.45 um in a single exposure. We introduce the Raw and Reduced IGRINS Spectral Archive (RRISA), which…

This study presents an efficient field-programmable gate array (FPGA) implementation of a polynomial spline function-based statistical compression algorithm designed to address the critical challenge of massive data transfer bandwidth in…

Image and Video Processing · Electrical Eng. & Systems 2026-02-12 Zhenya Zang , Mike Davies , Istvan Gyongy

I present spherical (https://github.com/m-samland/spherical), a software package and database designed for the ESO VLT/SPHERE high-contrast imager. SPHERE has produced the world's largest archive of direct imaging observations of exoplanets…

Instrumentation and Methods for Astrophysics · Physics 2025-09-11 Matthias Samland

X-ray ptychography imaging at synchrotron facilities like the Advanced Photon Source (APS) involves controlling instrument hardwares to collect a set of diffraction patterns from overlapping coherent illumination spots on extended samples,…

Instrumentation and Detectors · Physics 2022-02-10 Ke Yue , Junjing Deng , Yi Jiang , Youssef Nashed , David Vine , Stefan Vogt

Oceanic processes at fine scales are crucial yet difficult to observe accurately due to limitations in satellite and in-situ measurements. The Surface Water and Ocean Topography (SWOT) mission provides high-resolution Sea Surface Height…

Atmospheric and Oceanic Physics · Physics 2025-03-28 Eugenio Cutolo , Carlos Granero-Belinchon , Ptashanna Thiraux , Jinbo Wang , Ronan Fablet

Interactive graph-based segmentation methods partition an image into foreground and background regions with the aid of user inputs. However, existing approaches often suffer from high computational costs, sensitivity to user interactions,…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Kaustubh Shivshankar Shejole , Gaurav Mishra

We have written an automatic image processing pipeline for the Advanced Camera for Surveys (ACS) Guaranteed Time Observation (GTO) program. The pipeline, known as Apsis, supports the different cameras available on the ACS instrument and is…

Astrophysics · Physics 2007-05-23 J. P. Blakeslee , K. R. Anderson , G. R. Meurer , N. Benitez , D. Magee

Spectroscopy is a central pillar of materials characterization, providing useful information on properties like structure, composition, or excited state dynamics of a system. However, many spectroscopic techniques present challenges in…

Materials Science · Physics 2026-04-09 Amalya C. Johnson , Chris Fajardo , Leena Sansguiri , Weike Ye , Steven B. Torrisi

The online data reduction service reductus transforms measurements in experimental science from laboratory coordinates into physically meaningful quantities with accurate estimation of uncertainties based on instrumental settings and…

Data Analysis, Statistics and Probability · Physics 2018-11-15 Brian Maranville , William Ratcliff , Paul Kienzle

In topological data analysis, a point cloud data P extracted from a metric space is often analyzed by computing the persistence diagram or barcodes of a sequence of Rips complexes built on $P$ indexed by a scale parameter. Unfortunately,…

Computational Geometry · Computer Science 2016-09-27 Tamal K. Dey , Dayu Shi , Yusu Wang

The price of instruments and observing time on modern telescopes is quickly increasing with the size of the primary mirror. Therefore, it is worth revisiting the data reduction algorithms to extract every bit of scientific information from…

Instrumentation and Methods for Astrophysics · Physics 2021-02-03 Nikolai Piskunov , Ansgar Wehrhahn , Thomas Marquart

Most particle induced X-ray emission (PIXE) data analysis codes are not focused on handling multilayered samples. We have developed an open-source library called "LibCPIXE", for PIXE data analysis. It is written in standard C and implements…

Materials Science · Physics 2007-07-18 C. Pascual-Izarra , N. P. Barradas , M. A. Reis

The spike camera, with its high temporal resolution, low latency, and high dynamic range, addresses high-speed imaging challenges like motion blur. It captures photons at each pixel independently, creating binary spike streams rich in…

Computer Vision and Pattern Recognition · Computer Science 2025-08-05 Liangyan Jiang , Chuang Zhu , Yanxu Chen

We present new advances in the spectral extraction of point-like sources adapted to the Infrared Spectrograph onboard the Spitzer Space Telescope. For the first time, we created a super-sampled point spread function of the low-resolution…

Instrumentation and Methods for Astrophysics · Physics 2015-05-14 V. Lebouteiller , J. Bernard-Salas , G. C. Sloan , D. J. Barry

Major advancements in fields as diverse as biology and quantum computing have relied on a multitude of microscopic techniques. All optical, electron and scanning probe microscopy advanced with new detector technologies and integration of…

Instrumentation and Detectors · Physics 2023-03-01 Rama Vasudevan , Mani Valleti , Maxim Ziatdinov , Gerd Duscher , Suhas Somnath

Recent image restoration methods have produced significant advancements using deep learning. However, existing methods tend to treat the whole image as a single entity, failing to account for the distinct objects in the image that exhibit…

Computer Vision and Pattern Recognition · Computer Science 2023-07-04 Jiaxi Jiang , Christian Holz

This paper presents PipeFusion, an innovative parallel methodology to tackle the high latency issues associated with generating high-resolution images using diffusion transformers (DiTs) models. PipeFusion partitions images into patches and…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Jiarui Fang , Jinzhe Pan , Aoyu Li , Xibo Sun , Jiannan 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

De-identification of clinical records is an extremely important process which enables the use of the wealth of information present in them. There are a lot of techniques available for this but none of the method implementation has evaluated…

Machine Learning · Computer Science 2019-06-18 Rashmi Jain , Dinah Samuel Anand , Vijayalakshmi Janakiraman