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The handling of units in an automated way by software systems can be a cumbersome procedure when the units are parsed as strings. Software systems parsing units have to take into account extensive tables of unit names, not always identical…

Astrophysics · Physics 2007-05-23 Pedro Osuna , Jesus Salgado

We describe an algorithm for application of the classic `drizzle' technique to produce 3d spectral cubes using data obtained from the slicer-type integral field unit (IFU) spectrometers on board the James Webb Space Telescope. This…

Instrumentation and Methods for Astrophysics · Physics 2023-07-12 David R. Law , Jane E. Morrison , Ioannis Argyriou , Polychronis Patapis , J. Alvarez-Marquez , Alvaro Labiano , Bart Vandenbussche

Data from complex modern astronomical instruments often consist of a large number of different science and calibration files, and their reduction requires a variety of software tools. The execution chain of the tools represents a complex…

Instrumentation and Methods for Astrophysics · Physics 2013-11-22 W. Freudling , M. Romaniello , D. M. Bramich , P. Ballester , V. Forchi , C. E. Garcia-Dablo , S. Moehler , M. J. Neeser

The rapid growth of solar data is driving changes in the typical workflow and algorithmic approach to solar data analysis. We present recently deployed tools to aid this evolution and layout the path for future development. The majority of…

Instrumentation and Methods for Astrophysics · Physics 2018-07-02 Neal Hurlburt , Sam Freeland , Ryan Timmons

Spectropolarimetry at high spatial and spectral resolution is a basic tool to characterize the magnetic properties of the solar atmosphere. We introduce the KIS/IAA Visible Imaging Polarimeter (VIP), a new post-focus instrument that…

Solar and Stellar Astrophysics · Physics 2015-05-19 C. Beck , L. R. Bellot Rubio , T. J. Kentischer , A. Tritschler , J. C. del Toro Iniesta

Spectroscopy detected in the time domain entails many techniques, such as FTIR, pump-probe, FT-Raman, and 2DES, and applications, such as molecule characterization, excited state dynamics studies, or spectra classifications. Surprisingly,…

Optics · Physics 2024-05-21 Luca Bolzonello , Niek F van Hulst , Andreas Jakobsson

We provide a suite of public open-source spectral data-reduction software to rapidly obtain scientific products from all forms of long-slit-like spectroscopic observations. Automated SpectroPhotometric REDuction (ASPIRED) is a Python-based…

Instrumentation and Methods for Astrophysics · Physics 2023-06-16 Marco C. Lam , Robert J. Smith , Iair Arcavi , Iain A. Steele , Josh Veitch-Michaelis , Lukasz Wyrzykowski

We present VI-DSO, a novel approach for visual-inertial odometry, which jointly estimates camera poses and sparse scene geometry by minimizing photometric and IMU measurement errors in a combined energy functional. The visual part of the…

Computer Vision and Pattern Recognition · Computer Science 2020-06-19 Lukas von Stumberg , Vladyslav Usenko , Daniel Cremers

This paper presents the ``First Epoch'' sample from the VIMOS VLT Deep Survey (VVDS). The VVDS goals, observations, data reduction with VIPGI, and redshift measurement with KBRED are discussed. Data have been obtained with the VIsible Multi…

This letter investigates the reconfigurable intelligent surface (RIS)-assisted multiple-input single-output (MISO) wireless system, where both half-duplex (HD) and full-duplex (FD) operating modes are considered together, for the first time…

Signal Processing · Electrical Eng. & Systems 2021-10-12 Alice Faisal , Ibrahim Al-Nahhal , Octavia A. Dobre , Telex M. N. Ngatched

An Integral Field Unit (IFU) based on image-slicers has been added to the GREGOR Infrared Spectrograph (GRIS). This upgrade to the instrument makes possible 2D spectropolarimetry in the near-infrared by simultaneously recording the full…

Instrumentation and Methods for Astrophysics · Physics 2022-06-30 C. Dominguez-Tagle , M. Collados , R. Lopez , J. J. Vaz Cedillo , M. A. Esteves , O. Grassin , N. Vega , A. Mato , J. Quintero , H. Rodriguez , S. Regalado , F. Gonzalez

The Rapid Imaging Planetary Spectrograph (RIPS) was designed as a long-slit high-resolution spectrograph for the specific application of studying atmospheres of spatially extended solar system bodies. With heritage in terrestrial airglow…

Instrumentation and Methods for Astrophysics · Physics 2023-08-01 Patrick Lierle , Carl Schmidt , Jeffrey Baumgardner , Luke Moore , Emma Lovett

This paper describes the methods used to obtain the spectroscopic data and construct redshift catalogs for the Canada-France deep Redshift Survey (CFRS). The full data set consists of more than one thousand spectra, of objects with 17.5 <…

Astrophysics · Physics 2016-08-30 O. Le Fevre , David Crampton , S. J. Lilly , F. Hammer , L. Tresse

A method for optimal reduction of data taken with multi-fiber spectrographs is described, based on global correction of their geometrical distortion. Though it was specifically developed for reducing observations performed at Palomar…

Astrophysics · Physics 2009-11-07 Maurice Viton , Bruno Milliard

Weakly-supervised classification of histopathology slides is a computationally intensive task, with a typical whole slide image (WSI) containing billions of pixels to process. We propose Discriminative Region Active Sampling for Multiple…

Image and Video Processing · Electrical Eng. & Systems 2023-02-23 Jack Breen , Katie Allen , Kieran Zucker , Geoff Hall , Nicolas M. Orsi , Nishant Ravikumar

Optimal extraction is a key step in processing the raw images of spectra as registered by two-dimensional detector arrays to a one-dimensional format. Previously reported algorithms reconstruct models for a mean one-dimensional spatial…

Instrumentation and Methods for Astrophysics · Physics 2015-06-18 M. Zechmeister , G. Anglada-Escudé , A. Reiners

We describe a new pushbroom hyperspectral imaging device that has no macro moving part. The main components of the proposed hyperspectral imager are a digital micromirror device (DMD), a CMOS image sensor with no filter as the spectral…

Computer Vision and Pattern Recognition · Computer Science 2019-05-22 Reza Arablouei , Ethan Goan , Stephen Gensemer , Branislav Kusy

The Array Camera for Optical to Near-IR Spectrophotometry, or ARCONS, is a camera based on Microwave Kinetic Inductance Detectors (MKIDs), a new technology that has the potential for broad application in astronomy. Using an array of MKIDs,…

Instrumentation and Methods for Astrophysics · Physics 2015-08-06 J. C. van Eyken , M. J. Strader , A. B. Walter , S. R. Meeker , P. Szypryt , C. Stoughton , K. O'Brien , D. Marsden , N. K. Rice , Y. Lin , B. A. Mazin

Upgrading the infrastructure of old scientific instruments requires the development of new hardware and software which may be expensive (in general, these projects lack of enough resources to acquire fast and modern infrastructure to become…

Instrumentation and Methods for Astrophysics · Physics 2014-07-23 Victor De la Luz , Alejandro Lara

Nowadays, analyzing and reducing the ever larger astronomical datasets is becoming a crucial challenge, especially for long cumulated observation times. The INTEGRAL/SPI X-gamma-ray spectrometer is an instrument for which it is essential to…

Instrumentation and Methods for Astrophysics · Physics 2013-05-27 L. Bouchet , P. Amestoy , A. Buttari , F. -H. Rouet , M. Chauvin
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