| Irfu-10-46
|
|---|
| Automated Detection of Coronal Loops using a
Wavelet Transform Modulus Maxima Method |
| R.T. James McAteer, P. Kestener, A. Arneodo, A. Khalil |
| We propose and test a wavelet transform modulus maxima method for the automated
detection and extraction of coronal loops in extreme ultraviolet images of
the solar corona. This method decomposes an image into a number of size scales and
tracks enhanced power along each ridge corresponding to a coronal loop at each scale.
We compare the results across scales and suggest the optimum set of parameters to
maximise completeness while minimising detection of noise. For a test coronal image,
we compare the global statistics (e.g., number of loops at each length) to previous
automated coronal-loop detection algorithms. |
