A new algorithm for automatic detection of prominences on the solar limb in 304 Å EUV images is presented, and results of its application to SOHO/EIT data discussed. The detection is based on the method of moments combined with a classifier analysis aimed at discriminating between limb prominences, active regions, and the quiet corona. This classifier analysis is based on a Support Vector Machine (SVM). Using a set of 12 moments of the radial intensity profiles, the algorithm performs well in discriminating between the above three categories of limb structures, with a misclassification rate of 7%. Pixels detected as belonging to a prominence are then used as the starting point to reconstruct the whole prominence by morphological image-processing techniques. It is planned that a catalogue of limb prominences identified in SOHO and STEREO data using this method will be made publicly available to the scientific community.
|Publication status||Unpublished - Apr 2009|
|Event||RAS National Astronomy Meeting 2009 - London, UK|
Duration: 19 Apr 2009 → 24 Apr 2009
|Conference||RAS National Astronomy Meeting 2009|
|Period||19/04/09 → 24/04/09|
- solar physics