Graduate Theses & Dissertations

Historic Magnetogram Digitization
The conversion of historical analog images to time series data was performed by using deconvolution for pre-processing, followed by the use of custom built digitization algorithms. These algorithms have been developed to be user friendly with the objective of aiding in the creation of a data set from decades of mechanical observations collected from the Agincourt and Toronto geomagnetic observatories beginning in the 1840s. The created algorithms follow a structure which begins with pre-processing followed by tracing and pattern detection. Each digitized magnetogram was then visually inspected, and the algorithm performance verified to ensure accuracy, and to allow the data to later be connected to create a long-running time-series. Author Keywords: Magnetograms

Search Our Digital Collections

Query

Enabled Filters

  • (-) ≠ Reid
  • (-) ≠ Metcalfe
  • (-) ≠ Public policy
  • (-) = Computer science
  • (-) ≠ Medical imaging
  • (-) = Weygang
  • (-) = Trent University Graduate Thesis Collection
  • (-) = Master of Science

Filter Results

Date

2010 - 2020
(decades)
Specify date range: Show
Format: 2020/09/28

Last Name (Other)