Geoscientific Instrumentation, Methods and Data Systems
Geoscientific Instrumentation, Methods and Data Systems
GI
Articles | Volume 5, issue 2
Articles | Volume 5, issue 2
https://doi.org/10.5194/gi-5-305-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Special issue:
https://doi.org/10.5194/gi-5-305-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 5, issue 2
Research article
 | 
21 Jul 2016
Research article |  | 21 Jul 2016

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

Tuomas Savolainen, Daniel Keith Whiter, and Noora Partamies

Viewed

Total article views: 2,806 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
1,425 1,215 166 2,806 168 192
  • HTML: 1,425
  • PDF: 1,215
  • XML: 166
  • Total: 2,806
  • BibTeX: 168
  • EndNote: 192
Views and downloads (calculated since 19 Jan 2016)
Cumulative views and downloads (calculated since 19 Jan 2016)
Latest update: 16 Nov 2025
Download
Short summary
In this paper we describe a new method for recognition of digits in seven-segment displays. The method is used for adding date and time information 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.
Read more
Share
Special issue
Multi-disciplinary research and integrated monitoring at the...