Automatic Detection of Limb Prominences in 304 EUV Images

作者：Labrosse N^*; Dalla S; Marshall S

来源：Solar Physics, 2010, 262(2): 449-460.

DOI：10.1007/s11207-009-9492-9

• Corona, structures
• Prominences, quiescent
• Prominences, active

A new algorithm for automatic detection of prominences on the solar limb in 304 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.

• 出版日期2010-4