Automatic segmentation and classification of seven-segment display digits on auroral images


Savolainen, T., Whiter, D.K. and Partamies, N. (2016) Automatic segmentation and classification of seven-segment display digits on auroral images Geoscientific Instrumentation, Methods and Data Systems, 5, pp. 305-314. (doi:10.5194/gi-5-305-2016).

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Description/Abstract

In this paper we describe a new and fully automatic method for segmenting and classifying digits in seven-segment displays. The method is applied to a dataset consisting of about 7 million auroral all-sky images taken during the time period of 1973–1997 at camera stations centred around Sodankylä observatory in northern Finland. In each image there is a clock display for the date and time together with the reflection of the whole night sky through a spherical mirror. The digitised film images of the night sky contain valuable scientific information but are impractical to use without an automatic method for extracting the date–time from the display. We describe the implementation and the results of such a method in detail in this paper

Item Type: Article
Digital Object Identifier (DOI): doi:10.5194/gi-5-305-2016
ISSNs: 2193-0856 (print)
Organisations: Astronomy Group
ePrint ID: 398309
Date :
Date Event
1 July 2016Accepted/In Press
21 July 2016Published
Date Deposited: 22 Jul 2016 08:29
Last Modified: 17 Apr 2017 02:05
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/398309

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