Repozitorij Univerze v Novi Gorici

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Naslov:AutoSourceID-Light : Fast optical source localization via U-Net and Laplacian of Gaussian
Avtorji:Stoppa, F. (Avtor)
Vreeswijk, P. (Avtor)
Bloemen, S. (Avtor)
Bhattacharyya, S. (Avtor)
Caron, S (Avtor)
Jóhannesson, G. (Avtor)
Ruiz de Austri, R. (Avtor)
Van den Oetelaar, C. (Avtor)
Zaharijas, G. (Avtor)
Groot, P.J. (Avtor)
Cator, E. (Avtor)
Nelemans, G. (Avtor)
Datoteke:Gradivo nima datotek. Gradivo je morda fizično dosegljivo v knjižnici fakultete, zalogo lahko preverite v COBISS-u. Povezava se odpre v novem oknu
Jezik:Angleški jezik
Vrsta gradiva:Delo ni kategorizirano (r6)
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:UNG - Univerza v Novi Gorici
Opis:Aims: With the ever-increasing survey speed of optical wide-field telescopes and the importance of discovering transients when they are still young, rapid and reliable source localization is paramount. We present AutoSourceID-Light (ASID-L), an innovative framework that uses computer vision techniques that can naturally deal with large amounts of data and rapidly localize sources in optical images. Methods: We show that the ASID-L algorithm based on U-shaped networks and enhanced with a Laplacian of Gaussian filter provides outstanding performance in the localization of sources. A U-Net network discerns the sources in the images from many different artifacts and passes the result to a Laplacian of Gaussian filter that then estimates the exact location. Results: Using ASID-L on the optical images of the MeerLICHT telescope demonstrates the great speed and localization power of the method. We compare the results with SExtractor and show that our method outperforms this more widely used method rapidly detects more sources not only in low and mid-density fields, but particularly in areas with more than 150 sources per square arcminute. The training set and code used in this paper are publicly available.
Ključne besede:astronomical databases, data analysis, image processing
Leto izida:2022
Št. strani:8
Številčenje:662, A109
COBISS_ID:139051267 Povezava se odpre v novem oknu
URN:URN:SI:UNG:REP:G9JZPD1X
DOI:https://doi.org/10.1051/0004-6361/202243250 Povezava se odpre v novem oknu
Licenca:CC BY-NC-ND 4.0
To delo je dosegljivo pod licenco Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
Število ogledov:72
Število prenosov:0
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
Področja:Gradivo ni uvrščeno v področja.
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Skupna ocena:(0 glasov)
Vaša ocena:Ocenjevanje je dovoljeno samo prijavljenim uporabnikom.

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Gradivo je del revije

Naslov:Astronomy & Astrophysics
Skrajšan naslov:A&A
ISSN:0004-6361
Leto izida:2022

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