Thomas Kitching
Gravitational Lensing Accuracy Testing 2010 (GREAT10) Challenge Handbook
Kitching, Thomas; Amara, Adam; Gill, Mandeep; Harmeling, Stefan; Heymans, Catherine; Massey, Richard; Rowe, Barnaby; Schrabback, Tim; Voigt, Lisa; Balan, Sreekumar; Bernstein, Gary; Bethge, Matthias; Bridle, Sarah; Courbin, Frederic; Gentile, Marc; Heavens, Alan; Hirsch, Michael; Hosseini, Reshad; Kiessling, Alina; Kirk, Donnacha; Kuijken, Konrad; Mandelbaum, Rachel; Moghaddam, Baback; Nurbaeva, Guldariya; Paulin-Henriksson, Stephane; Rassat, Anais; Rhodes, Jason; Schoelkopf, Bernhard; Shawe-Taylor, John; Shmakova, Marina; Taylor, Andy; Velander, Malin; van Waerbeke, Ludovic; Witherick, Dugan; Wittman, David
Authors
Adam Amara
Mandeep Gill
Stefan Harmeling
Catherine Heymans
Professor Richard Massey r.j.massey@durham.ac.uk
Professor
Barnaby Rowe
Tim Schrabback
Lisa Voigt
Sreekumar Balan
Gary Bernstein
Matthias Bethge
Sarah Bridle
Frederic Courbin
Marc Gentile
Alan Heavens
Michael Hirsch
Reshad Hosseini
Alina Kiessling
Donnacha Kirk
Konrad Kuijken
Rachel Mandelbaum
Baback Moghaddam
Guldariya Nurbaeva
Stephane Paulin-Henriksson
Anais Rassat
Jason Rhodes
Bernhard Schoelkopf
John Shawe-Taylor
Marina Shmakova
Andy Taylor
Malin Velander
Ludovic van Waerbeke
Dugan Witherick
David Wittman
Abstract
GRavitational lEnsing Accuracy Testing 2010 (GREAT10) is a public image analysis challenge aimed at the development of algorithms to analyze astronomical images. Specifically, the challenge is to measure varying image distortions in the presence of a variable convolution kernel, pixelization and noise. This is the second in a series of challenges set to the astronomy, computer science and statistics communities, providing a structured environment in which methods can be improved and tested in preparation for planned astronomical surveys. GREAT10 extends upon previous work by introducing variable fields into the challenge. The “Galaxy Challenge” involves the precise measurement of galaxy shape distortions, quantified locally by two parameters called shear, in the presence of a known convolution kernel. Crucially, the convolution kernel and the simulated gravitational lensing shape distortion both now vary as a function of position within the images, as is the case for real data. In addition, we introduce the “Star Challenge” that concerns the reconstruction of a variable convolution kernel, similar to that in a typical astronomical observation. This document details the GREAT10 Challenge for potential participants. Continually updated information is also available from www.greatchallenges.info.
Citation
Kitching, T., Amara, A., Gill, M., Harmeling, S., Heymans, C., Massey, R., …Wittman, D. (2011). Gravitational Lensing Accuracy Testing 2010 (GREAT10) Challenge Handbook. Annals of Applied Statistics, 5(3), 2231-2263. https://doi.org/10.1214/11-aoas484
Journal Article Type | Article |
---|---|
Publication Date | Sep 1, 2011 |
Deposit Date | Mar 21, 2013 |
Publicly Available Date | May 6, 2015 |
Journal | Annals of Applied Statistics |
Print ISSN | 1932-6157 |
Electronic ISSN | 1941-7330 |
Publisher | Institute of Mathematical Statistics |
Peer Reviewed | Peer Reviewed |
Volume | 5 |
Issue | 3 |
Pages | 2231-2263 |
DOI | https://doi.org/10.1214/11-aoas484 |
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