Radio Galaxy Zoo: CLARAN - a deep learning classifier for radio morphologies
OPEN ACCESS
Loading...
Author / Producer
Date
2019-01
Publication Type
Journal Article
ETH Bibliography
yes
Citations
Altmetric
OPEN ACCESS
Data
Rights / License
Abstract
The upcoming next-generation large area radio continuum surveys can expect tens of millions of radio sources, rendering the traditional method for radio morphology classification through visual inspection unfeasible. We present CLARAN — Classifying Radio sources Automatically with Neural networks — a proof-of-concept radio source morphology classifier based upon the Faster Region-based Convolutional Neutral Networks method. Specifically, we train and test CLARAN on the FIRST and WISE (Wide-field Infrared Survey Explorer) images from the Radio Galaxy Zoo Data Release 1 catalogue. CLARAN provides end users with automated identification of radio source morphology classifications from a simple input of a radio image and a counterpart infrared image of the same region. CLARAN is the first open-source, end-to-end radio source morphology classifier that is capable of locating and associating discrete and extended components of radio sources in a fast (<200 ms per image) and accurate (≥90 per cent) fashion. Future work will improve CLARAN’s relatively lower success rates in dealing with multisource fields and will enable CLARAN to identify sources on much larger fields without loss in classification accuracy.
Permanent link
Publication status
published
External links
Editor
Book title
Journal / series
Volume
482 (1)
Pages / Article No.
1211 - 1230
Publisher
Oxford University Press
Event
Edition / version
Methods
Software
Geographic location
Date collected
Date created
Subject
methods: numerical; methods: statistical; techniques: image processing; galaxies: active; radio continuum: galaxies
Organisational unit
Notes
It was possible to publish this article open access thanks to a Swiss National Licence with the publisher.