Image analysis for cosmology: Shape measurement challenge review & results from the Mapping Dark Matter challenge

T. D. Kitching; J. Rhodes; C. Heymans; R. Massey; Q. Liu; M. Cobzarenco; B. L. Cragin; A. Hassaine; D. Kirkby; E. Jin Lok; D. Margala; J. Moser; M. O'Leary; A. M. Pires; S. Yurgenson

doi:10.1016/j.ascom.2014.12.004

Image analysis for cosmology: Shape measurement challenge review & results from the Mapping Dark Matter challenge

T. D. Kitching^*, J. Rhodes, C. Heymans, R. Massey, Q. Liu, M. Cobzarenco, B. L. Cragin, A. Hassaine, D. Kirkby, E. Jin Lok, D. Margala, J. Moser, M. O'Leary, A. M. Pires, S. Yurgenson

^*Corresponding author for this work

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract / Description of output

In this paper we present results from the Mapping Dark Matter competition that expressed the weak lensing shape measurement task in its simplest form and as a result attracted over 700 submissions in 2 months and a factor of 3 improvement in shape measurement accuracy on high signal to noise galaxies, over previously published results, and a factor 10 improvement over methods tested on constant shear blind simulations. We also review weak lensing shape measurement challenges, including the Shear TEsting Programmes (STEP1 and STEP2) and the GRavitational lEnsing Accuracy Testing competitions (GREAT08 and GREAT10). (C) 2014 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	9-21
Number of pages	13
Journal	Astronomy and Computing
Volume	10
DOIs	https://doi.org/10.1016/j.ascom.2014.12.004
Publication status	Published - Apr 2015

Keywords / Materials (for Non-textual outputs)

Cosmology
Image analysis
Gravitational lensing
Dark energy
Dark matter
WEAK LENSING SURVEYS
ANALYSIS COMPETITION
GREAT08 CHALLENGE

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Kitching, T. D., Rhodes, J., Heymans, C., Massey, R., Liu, Q., Cobzarenco, M., Cragin, B. L., Hassaine, A., Kirkby, D., Lok, E. J., Margala, D., Moser, J., O'Leary, M., Pires, A. M., & Yurgenson, S. (2015). Image analysis for cosmology: Shape measurement challenge review & results from the Mapping Dark Matter challenge. Astronomy and Computing , 10, 9-21. https://doi.org/10.1016/j.ascom.2014.12.004

@article{e0b5c6d3fdbd4729ab16e448096daf27,

title = "Image analysis for cosmology: Shape measurement challenge review & results from the Mapping Dark Matter challenge",

abstract = "In this paper we present results from the Mapping Dark Matter competition that expressed the weak lensing shape measurement task in its simplest form and as a result attracted over 700 submissions in 2 months and a factor of 3 improvement in shape measurement accuracy on high signal to noise galaxies, over previously published results, and a factor 10 improvement over methods tested on constant shear blind simulations. We also review weak lensing shape measurement challenges, including the Shear TEsting Programmes (STEP1 and STEP2) and the GRavitational lEnsing Accuracy Testing competitions (GREAT08 and GREAT10). (C) 2014 Elsevier B.V. All rights reserved.",

keywords = "Cosmology, Image analysis, Gravitational lensing, Dark energy, Dark matter, WEAK LENSING SURVEYS, ANALYSIS COMPETITION, GREAT08 CHALLENGE",

author = "Kitching, {T. D.} and J. Rhodes and C. Heymans and R. Massey and Q. Liu and M. Cobzarenco and Cragin, {B. L.} and A. Hassaine and D. Kirkby and Lok, {E. Jin} and D. Margala and J. Moser and M. O'Leary and Pires, {A. M.} and S. Yurgenson",

year = "2015",

month = apr,

doi = "10.1016/j.ascom.2014.12.004",

language = "English",

volume = "10",

pages = "9--21",

journal = "Astronomy and Computing ",

issn = "2213-1337",

publisher = "Elsevier",

}

Kitching, TD, Rhodes, J, Heymans, C, Massey, R, Liu, Q, Cobzarenco, M, Cragin, BL, Hassaine, A, Kirkby, D, Lok, EJ, Margala, D, Moser, J, O'Leary, M, Pires, AM & Yurgenson, S 2015, 'Image analysis for cosmology: Shape measurement challenge review & results from the Mapping Dark Matter challenge', Astronomy and Computing , vol. 10, pp. 9-21. https://doi.org/10.1016/j.ascom.2014.12.004

TY - JOUR

T1 - Image analysis for cosmology

T2 - Shape measurement challenge review & results from the Mapping Dark Matter challenge

AU - Kitching, T. D.

AU - Rhodes, J.

AU - Heymans, C.

AU - Massey, R.

AU - Liu, Q.

AU - Cobzarenco, M.

AU - Cragin, B. L.

AU - Hassaine, A.

AU - Kirkby, D.

AU - Lok, E. Jin

AU - Margala, D.

AU - Moser, J.

AU - O'Leary, M.

AU - Pires, A. M.

AU - Yurgenson, S.

PY - 2015/4

Y1 - 2015/4

N2 - In this paper we present results from the Mapping Dark Matter competition that expressed the weak lensing shape measurement task in its simplest form and as a result attracted over 700 submissions in 2 months and a factor of 3 improvement in shape measurement accuracy on high signal to noise galaxies, over previously published results, and a factor 10 improvement over methods tested on constant shear blind simulations. We also review weak lensing shape measurement challenges, including the Shear TEsting Programmes (STEP1 and STEP2) and the GRavitational lEnsing Accuracy Testing competitions (GREAT08 and GREAT10). (C) 2014 Elsevier B.V. All rights reserved.

AB - In this paper we present results from the Mapping Dark Matter competition that expressed the weak lensing shape measurement task in its simplest form and as a result attracted over 700 submissions in 2 months and a factor of 3 improvement in shape measurement accuracy on high signal to noise galaxies, over previously published results, and a factor 10 improvement over methods tested on constant shear blind simulations. We also review weak lensing shape measurement challenges, including the Shear TEsting Programmes (STEP1 and STEP2) and the GRavitational lEnsing Accuracy Testing competitions (GREAT08 and GREAT10). (C) 2014 Elsevier B.V. All rights reserved.

KW - Cosmology

KW - Image analysis

KW - Gravitational lensing

KW - Dark energy

KW - Dark matter

KW - WEAK LENSING SURVEYS

KW - ANALYSIS COMPETITION

KW - GREAT08 CHALLENGE

U2 - 10.1016/j.ascom.2014.12.004

DO - 10.1016/j.ascom.2014.12.004

M3 - Article

SN - 2213-1337

VL - 10

SP - 9

EP - 21

JO - Astronomy and Computing

JF - Astronomy and Computing

ER -

Image analysis for cosmology: Shape measurement challenge review & results from the Mapping Dark Matter challenge

Abstract / Description of output

Keywords / Materials (for Non-textual outputs)

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