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We describe a compression method for floating-point astronomical images that gives compression ratios of 6 -- 10 while still preserving the scientifically important information in the image. The pixel values are first preprocessed by…

Instrumentation and Methods for Astrophysics · Physics 2010-09-10 W. D. Pence , R. L. White , R. Seaman

New approaches for data provenance and data management (DPDM) are required for mega science projects like the Square Kilometer Array, characterized by extremely large data volume and intense data rates, therefore demanding innovative and…

Distributed, Parallel, and Cluster Computing · Computer Science 2011-12-13 Mahmoud S. Mahmoud , Andrew Ensor , Alain Biem , Bruce Elmegreen , Sergei Gulyaev

The modernization of the Common Agricultural Policy (CAP) requires the large scale and frequent monitoring of agricultural land. Towards this direction, the free and open satellite data (i.e., Sentinel missions) have been extensively used…

Computer Vision and Pattern Recognition · Computer Science 2022-05-17 Thanassis Drivas , Vasileios Sitokonstantinou , Iason Tsardanidis , Alkiviadis Koukos , Charalampos Kontoes , Vassilia Karathanassi

Proper quality control (QC) is time consuming when working with large-scale medical imaging datasets, yet necessary, as poor-quality data can lead to erroneous conclusions or poorly trained machine learning models. Most efforts to reduce…

Astronomy has always been at the forefront of information technology, moving from the era of photographic plates, to digital snapshots and now to digital movies of the sky. This has brought about a data explosion with multi- terabyte…

Instrumentation and Methods for Astrophysics · Physics 2012-01-06 Ashish Mahabal , Ajit Kembhavi , Roy Williams , Sharmad Navelkar

We introduce NebulOS, a Big Data platform that allows a cluster of Linux machines to be treated as a single computer. With NebulOS, the process of writing a massively parallel program for a datacenter is no more complicated than writing a…

Instrumentation and Methods for Astrophysics · Physics 2016-09-15 Nathaniel R. Stickley , Miguel A. Aragon-Calvo

The amount of remote sensing data available to applications is constantly growing due to the rise of very-high-resolution sensors and short repeat cycle satellites. Consequently, tackling computational complexity in Earth Observation…

Distributed, Parallel, and Cluster Computing · Computer Science 2016-09-29 Remi Cresson

The VISIONS public survey provides large-scale, multiepoch imaging of five nearby star-forming regions at subarcsecond resolution in the near-infrared. All data collected within the program and provided by the European Southern Observatory…

Instrumentation and Methods for Astrophysics · Physics 2023-05-17 Stefan Meingast , Hervé Bouy , Verena Fürnkranz , David Hernandez , Alena Rottensteiner , Erik Brändli

The FITS is the standard file format in astronomy, and it has been extended to agree with astronomical needs of the day. However, astronomical datasets have been inflating year by year. In case of ALMA telescope, a ~ TB scale 4-dimensional…

Instrumentation and Methods for Astrophysics · Physics 2015-06-15 Satoshi Eguchi

Astronomy depends on ever increasing computing power. Processor clock-rates have plateaued, and increased performance is now appearing in the form of additional processor cores on a single chip. This poses significant challenges to the…

Instrumentation and Methods for Astrophysics · Physics 2015-05-19 Benjamin R. Barsdell , David G. Barnes , Christopher J. Fluke

The production of science-ready data from major solar telescopes requires expertise beyond that of the typical observer. This is a consequence of the increasing complexity of instruments and observing sequences, which require calibrations…

Solar and Stellar Astrophysics · Physics 2014-12-17 J. de la Cruz Rodríguez , M. Löfdahl , P. Sütterlin , T. Hillberg , L. Rouppe van der Voort

KMOS is a multi-object near-infrared integral field spectrometer with 24 deployable cryogenic pick-off arms. Inevitably, data processing is a complex task that requires careful calibration and quality control. In this paper we describe all…

As members of the instrument team for the Advanced CCD Imaging Spectrometer (ACIS) on NASA's Chandra X-ray Observatory and as Chandra General Observers, we have developed a wide variety of data analysis methods that we believe are useful to…

High Energy Astrophysical Phenomena · Physics 2015-05-18 Patrick S. Broos , Leisa K. Townsley , Eric D. Feigelson , Konstantin V. Getman , Franz E. Bauer , Gordon P. Garmire

Big earth science data offers the scientific community great opportunities. Many more studies at large-scales, over long-terms and at high resolution can now be conducted using the rich information collected by remote sensing satellites,…

Computers and Society · Computer Science 2024-03-25 Wenwen Li , Hu Shao , Sizhe Wang , Xiran Zhou , Sheng Wu

This chapter describes how astronomical imaging survey data have become a vital part of modern astronomy, how these data are archived and then served to the astronomical community through on-line data access portals. The Virtual…

Instrumentation and Methods for Astrophysics · Physics 2015-03-17 Daniel S. Katz , G. Bruce Berriman , Robert G. Mann

In the current data-driven science era, it is needed that data analysis techniques has to quickly evolve to face with data whose dimensions has increased up to the Petabyte scale. In particular, being modern astrophysics based on…

Instrumentation and Methods for Astrophysics · Physics 2017-06-14 Giuseppe Riccio , Massimo Brescia , Stefano Cavuoti , Amata Mercurio , Anna Maria Di Giorgio , Sergio Molinari

Cyber-Physical Systems (CPSs) employed for Industrial Automation often require the adoption of a hybrid data processing approach mediating between cloud, edge, and fog computing paradigms. Nowadays, it is possible to shift data…

The primary use of technical computing in the oil and gas industries is for seismic imaging of the earth's subsurface, driven by the business need for making well-informed drilling decisions during petroleum exploration and production.…

Distributed, Parallel, and Cluster Computing · Computer Science 2012-04-06 Masnida Emami , Ali Setayesh , Nasrin Jaberi

At the Canadian Astronomy Data Centre, we have combined our cloud computing system, CANFAR, with the world's most advanced machine learning software, Skytree, to create the world's first cloud computing system for data mining in astronomy.…

Instrumentation and Methods for Astrophysics · Physics 2013-12-17 Nicholas M. Ball

Cyber-Physical Systems (CPSs) have been pervasive including smart grid, autonomous automobile systems, medical monitoring, process control systems, robotics systems, and automatic pilot avionics. As usually implemented on embedded devices,…

Machine Learning · Computer Science 2019-03-07 Xiaowei Xu