Application Of Digital Image Processing Techniques To Faint Solar Flare Phenomena

David L. Glackin; Sara F. Martin

doi:10.1117/12.959810

21 November 1980 Application Of Digital Image Processing Techniques To Faint Solar Flare Phenomena

David L. Glackin, Sara F. Martin

Proceedings Volume 0264, Applications of Digital Image Processing to Astronomy; (1980) https://doi.org/10.1117/12.959810
Event: 1981 Los Angeles Technical Symposium, 1980, Los Angeles, United States

Abstract

We studied three types of faint emission features associated with solar flares -- moving emission fronts, flare halos and Moreton waves. They are all diffuse, rapidly moving phenomena that have classically been studied using solar movies, because their motion renders them more readily apparent to the eye. We searched for an easier and more quantitative method of analyzing these phenomena using still prints. Using the facilities of JPL's Image Processing Laboratory we applied various VICAR algorithms to eight selected events. The techniques employed include contrast enhancement, isointensity contouring, differencing of images, spatial filtering and geometrical registration. We have studied the spatial extent and temporal behavior of the phenomena, the connection between the three different types of phenomena, the possible relation to white-light coronal transients and different physical models for these features.

Citation Download Citation

David L. Glackin and Sara F. Martin "Application Of Digital Image Processing Techniques To Faint Solar Flare Phenomena", Proc. SPIE 0264, Applications of Digital Image Processing to Astronomy, (21 November 1980); https://doi.org/10.1117/12.959810

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