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This paper presents a nonlocal InSAR filter with the goal of generating digital elevation models of higher resolution and accuracy from bistatic TanDEM-X strip map interferograms than with the processing chain used in production. The…

Image and Video Processing · Electrical Eng. & Systems 2018-12-05 Gerald Baier , Cristian Rossi , Marie Lachaise , Xiao Xiang Zhu , Richard Bamler

Thermal infrared (TIR) cameras are emerging as promising sensors in safety-related fields due to their robustness against external illumination. However, RAW TIR image has 14 bits of pixel depth and needs to be rescaled into 8 bits for…

Computer Vision and Pattern Recognition · Computer Science 2024-05-27 Hyeonjae Gil , Myung-Hwan Jeon , Ayoung Kim

Context. The atmospheric absorption of the Earth is an important limiting factor for ground-based spectroscopic observations and the near-infrared and infrared regions are the most affected. Several software packages that produce a…

Instrumentation and Methods for Astrophysics · Physics 2019-01-16 S. Ulmer-Moll , P. Figueira , J. J. Neal , N. C. Santos , M. Bonnefoy

Conventional tomographic reconstruction algorithms assume that one has obtained pure projection images, involving no within-specimen diffraction effects nor multiple scattering. Advances in x-ray nanotomography are leading towards the…

Image and Video Processing · Electrical Eng. & Systems 2020-12-23 Ming Du , Youssef S. G. Nashed , Saugat Kandel , Doga Gursoy , Chris Jacobsen

We describe principal components of the new spectroscopic data pipeline for the multi-object MMT/Magellan Infrared Spectrograph (MMIRS). The pipeline is implemented in IDL and C++. The performance of the data processing algorithms is…

Instrumentation and Methods for Astrophysics · Physics 2012-12-18 Igor Chilingarian , Warren Brown , Daniel Fabricant , Brian McLeod , John Roll , Andrew Szentgyorgyi

Tip-enhanced Raman spectroscopy (TERS) combines inelastic light scattering well below the diffraction limit down to the nanometer range and scanning probe microscopy and, possibly, spectroscopy. In this way, topographic and spectroscopic as…

Superconductivity · Physics 2023-06-06 Leander Peis , Ge He , Daniel Jost , Gabriele Rager , Rudi Hackl

This paper discusses the multi-wavelength scanning Raman lidar being built at Lidar Division, CEILAP (CITEDEF-CONICET) in the frame of the Argentinean Cherenkov Telescope Array (CTA) collaboration to measure the spectral characteristics of…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 Juan Pallotta , Pablo Ristori , Lidia Otero , Fernando Chouza , Delia Raul , Francisco Gonzalez , Alberto Etchegoyen , Eduardo Quel

Tip-enhanced Raman spectroscopy (TERS) has reached nanometer spatial resolution for measurements performed at ambient conditions and sub-nanometer resolution at ultra high vacuum. Super-resolution (beyond the tip apex diameter) TERS has…

Here, we present an astrophotonic spectrograph in the near-IR H-band (1.45 -1.65 $\mu m$) and a spectral resolution ($\lambda/\delta\lambda$) of 1500. The main dispersing element of the spectrograph is a photonic chip based on…

Instrumentation and Methods for Astrophysics · Physics 2022-03-16 Pradip Gatkine , Meghna Sitaram , Sylvain Veilleux , Mario Dagenais , Joss Bland-Hawthorn

The GMRT Online Archive now houses over 120 terabytes of interferometric observations obtained with the GMRT since the observatory began operating as a facility in 2002. The utility of this vast data archive, likely the largest of any…

Instrumentation and Methods for Astrophysics · Physics 2018-12-11 Shubhankar Deshpande , Yogesh Wadadekar , Huib Intema , B. Ratnakumar , Lijo George , Rathin Desai , Archit Sakhadeo , Shadab Shaikh , C. H. Ishwara-Chandra , Divya Oberoi

A CALLISTO spectrometer to monitor solar radio transient emissions from $\approx 0.8-1.6~R_{\odot}$ (above photosphere) is installed at IISER, Pune, India (longitude $73^{\circ} 55'$ E and latitude $18^{\circ}31'$ N). In this paper, we…

Instrumentation and Methods for Astrophysics · Physics 2018-01-12 K. Sasikumar Raja , Prasad Subramanian , S. Ananthakrishnan , Christian Monstein

The Infrared Spectrograph (IRS)is one of the three instruments on board the Space Infrared Telescope Facility (SIRTF) to be launched in December 2001. The IRS will provide high resolution spectra R~600 from 10--37microns and low resolution…

Astrophysics · Physics 2007-05-23 J. Houck , J. van Cleve , B. Brandl , V. Charmandaris , D. Devost , K. Uchida

The integral field spectrograph configuration of the LMIRCam science camera within the Large Binocular Telescope Interferometer (LBTI) facilitates 2 to 5 $\mu$m spectroscopy of directly imaged gas-giant exoplanets. The mode, dubbed ALES,…

Instrumentation and Methods for Astrophysics · Physics 2018-08-09 Jordan M. Stone , Andrew J. Skemer , Philip Hinz , Zack Briesemeister , Travis Barman , Charles E. Woodward , Mike Skrutskie , Jarron Leisenring

I present and summarize a software package ("LPipe") for completely automated, end-to-end reduction of both bright and faint sources with the Low-Resolution Imaging Spectrometer (LRIS) at Keck Observatory. It supports all gratings, grisms,…

Instrumentation and Methods for Astrophysics · Physics 2019-07-10 Daniel A. Perley

Binospec is a wide-field optical (360 to 1000 nm) spectrograph commissioned at the MMT 6.5m telescope in 2017. In direct imaging mode Binospec addresses twin 8$^\prime$ (wide) by 15$^\prime$ (slit length) fields of view. We describe an…

Instrumentation and Methods for Astrophysics · Physics 2025-01-06 Daniel Fabricant , Sagi Ben-Ami , Igor Chilingarian , Robert Fata , Sean Moran , Martin Paegert , Matthew Smith , Joseph Zajac

Astronomical data generally consists of 2 or more high-resolution axes, e.g., X,Y position on the sky or wavelength and position-along-one-axis (long-slit spectrometer). Analyzing these multi-dimension observations requires combining 3D…

Instrumentation and Methods for Astrophysics · Physics 2009-02-11 Daniel Dewey , Michael S. Noble

Classic designs of hyperspectral instrumentation densely sample the spatial and spectral information of the scene of interest. Data may be compressed after the acquisition. In this paper we introduce a framework for the design of an…

Image and Video Processing · Electrical Eng. & Systems 2023-09-21 T. A. Stockmans , F. Snik , M. Esposito , C. van Dijk , C. U. Keller

The Far-InfraRed Spectroscopic Explorer (FIRSPEX) is a candidate mission in response to a bi-lateral Small-mission call issued by the European Space Agency (ESA) and the Chinese Academy of Sciences (CAS). FIRSPEX is a small satellite (~1m…

Instrumentation and Methods for Astrophysics · Physics 2015-07-24 Dimitra Rigopoulou , Chris Pearson , Brian Ellison , Bruce Swinyard , Sheng-Cai Shi , Jie Hu , Martin Caldwell , Jia-Sheng Huang , the FIRSPEX Consortium
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