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Related papers: FLAGCAL:A flagging and calibration package for rad…

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We present the first fully automated pipeline for making images from the interferometric data obtained from the upgraded Giant Metrewave Radio Telescope (uGMRT) called CAsa Pipeline-cum-Toolkit for Upgraded Giant Metrewave Radio Telescope…

Instrumentation and Methods for Astrophysics · Physics 2020-10-21 Ruta Kale , Ishwara-Chandra C. H.

We present the Generalized Polarization CALibration pipeline (GPCAL), an automated pipeline for instrumental polarization calibration of very long baseline interferometry (VLBI) data. The pipeline is designed to achieve a high calibration…

Instrumentation and Methods for Astrophysics · Physics 2021-01-20 Jongho Park , Do-Young Byun , Keiichi Asada , Youngjoo Yun

PHOTOMETRYPIPELINE (PP) is an automated pipeline that produces calibrated photometry from imaging data through image registration, aperture photometry, photometric calibration, and target identification with only minimal human interaction.…

Instrumentation and Methods for Astrophysics · Physics 2017-02-06 Michael Mommert

Accurate camera calibration is crucial for various computer vision applications. However, measuring calibration accuracy in the real world is challenging due to the lack of datasets with ground truth to evaluate them. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2024-08-20 Lala Shakti Swarup Ray , Bo Zhou , Lars Krupp , Sungho Suh , Paul Lukowicz

Calibrating out per-antenna signal chain effects is an essential step in analyzing radio interferometric data. For drift-scanning arrays, robustly calibrating the data is especially challenging due to the lack of the ability to track a…

Instrumentation and Methods for Astrophysics · Physics 2026-02-09 Robert Pascua , Jonathan Sievers , Adrian Liu

Editing of radio interferometer data, a process commonly known as ``flagging'', can be laborious and time-consuming. One quickly tends to flag more data than actually required, sacrificing sensitivity and image fidelity in the process. I…

Astrophysics · Physics 2009-11-11 E. Middelberg

We describe the InfraRed Data Reduction (IRDR) software package, a small ANSI C library of fast image processing routines for automated pipeline reduction of infrared (dithered) observations. We developed the software to satisfy certain…

Astrophysics · Physics 2007-05-23 Chris N. Sabbey , Richard G. McMahon , James R. Lewis , Mike J. Irwin

General description of an on-line procedure of calibration for IGRT (Image Guided Radiotherapy) is given. The algorithm allows to improve targeting cancer by estimating its position in space and suggests appropriate correction of the…

Medical Physics · Physics 2019-04-02 R. A. Kycia , Z. Tabor , A. Woszczyna , D. Kabat , M. Tulik , Z. Latała

We present flame, a pipeline for reducing spectroscopic observations obtained with multi-slit near-infrared and optical instruments. Because of its flexible design, flame can be easily applied to data obtained with a wide variety of…

Instrumentation and Methods for Astrophysics · Physics 2018-06-29 Sirio Belli , Alessandra Contursi , Richard I. Davies

High fidelity radio interferometric data calibration that minimises spurious spectral structure in the calibrated data is essential in astrophysical applications, such as 21 cm cosmology, which rely on knowledge of the relative spectral…

Instrumentation and Methods for Astrophysics · Physics 2022-10-26 Peter H. Sims , Jonathan C. Pober , Jonathan L. Sievers

Despite the rapid evolution of learning and computer vision algorithms, Fine-Grained Classification (FGC) still poses an open problem in many practically relevant applications. In the retail domain, for example, the identification of fast…

Computer Vision and Pattern Recognition · Computer Science 2025-04-17 Bianca Lamm , Janis Keuper

Mapping workflow applications onto parallel platforms is a challenging problem, even for simple application patterns such as pipeline graphs. Several antagonistic criteria should be optimized, such as throughput and latency (or a…

Distributed, Parallel, and Cluster Computing · Computer Science 2008-01-14 Anne Benoit , Harald Kosch , Veronika Rehn-Sonigo , Yves Robert

We present a newly, fully automated, data pipeline: Solvepol, designed to reduce and analyze polarimetric data. It has been optimized for imaging data from the Instituto de Astronomia, Geofisica e Ciencias Atmosfericas (IAG) of the…

Instrumentation and Methods for Astrophysics · Physics 2017-11-15 Edgar A. Ramírez , Antônio M. Magalhães , James W. Davidson , Antonio Pereyra , Marcelo Rubinho

The newly installed Silmaril beam combiner at the CHARA array is designed to observe previously inaccessible faint targets, including Active Galactic Nuclei and T-Tauri Young Stellar Objects. Silmaril leverages cutting-edge optical design,…

The linear polarization images of the jet in the giant elliptical galaxy M87 have previously been observed with Very Long Baseline Array at 7 mm. They exhibit a complex polarization structure surrounding the optically thick and compact…

High Energy Astrophysical Phenomena · Physics 2021-12-08 Jongho Park , Keiichi Asada , Masanori Nakamura , Motoki Kino , Hung-Yi Pu , Kazuhiro Hada , Evgeniya V. Kravchenko , Marcello Giroletti

The development of sensitive large format imaging arrays for the infrared promises to provide revolutionary capabilities for space astronomy. For example, the Infrared Array Camera (IRAC) on SIRTF will use four 256 x 256 arrays to provide…

Astrophysics · Physics 2016-08-30 D. J. Fixsen , S. H. Moseley , R. G. Arendt

The primary task of the 1.26-m telescope jointly operated by the National Astronomical Observatory and Guangzhou University is photometric observations of the g, r, and i bands. A data processing pipeline system was set up with mature…

Instrumentation and Methods for Astrophysics · Physics 2020-05-27 Weirong Huang , Zhou Xie , Wenjie Zhong , Ying Mei , Hui Deng , Yingbo Liu , Feng Wang

It has recently been shown that radio interferometric gain calibration can be expressed succinctly in the language of complex optimisation. In addition to providing an elegant framework for further development, it exposes properties of the…

Instrumentation and Methods for Astrophysics · Physics 2018-05-23 J. S. Kenyon , O. M. Smirnov , T. L. Grobler , S. J. Perkins

Written in Python and utilising ParselTongue to interface with the Astronomical Image Processing System (AIPS), the e-MERLIN data reduction pipeline is intended to automate the procedures required in processing and calibrating radio…

Instrumentation and Methods for Astrophysics · Physics 2015-02-18 Megan Argo

Methods for automatically flag poor performing-predictions are essential for safely implementing machine learning workflows into clinical practice and for identifying difficult cases during model training. We present a readily adoptable…

Image and Video Processing · Electrical Eng. & Systems 2023-05-17 Harrison C. Gottlich , Panagiotis Korfiatis , Adriana V. Gregory , Timothy L. Kline
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