 |
| Titel |
Real-Time flare detection using guided filter |
| VerfasserIn |
Jiaben Lin, Yuanyong Deng, Fei Yuan, Juan Guo |
| Konferenz |
EGU General Assembly 2017
|
| Medientyp |
Artikel
|
| Sprache |
en
|
| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 19 (2017) |
| Datensatznummer |
250142602
|
| Publikation (Nr.) |
 EGU/EGU2017-6243.pdf |
|
|
|
|
|
| Zusammenfassung |
| A procedure is introduced for the automatic detection of solar flare using full-disk solar
images from Huairou Solar Observing Station (HSOS), National Astronomical Observatories
of China. In image preprocessing, median filter is applied to remove the noises. And then we
adopt guided filter, which is first introduced into the astronomical image detection, to enhance
the edges of flares and restrain the solar limb darkening. Flares are then detected by modified
Otsu algorithm and further threshold processing technique. Compared with other automatic
detection procedure, the new procedure has some advantages such as real time and
reliability as well as no need of image division and local threshold. Also, it reduces the
amount of computation largely, which is benefited from the efficient guided filter
algorithm. The procedure has been tested on one month sequences (December 2013)
of HSOS full-disk solar images and the result of flares detection shows that the
number of flares detected by our procedure is well consistent with the manual one. |
|
|
|
|
|
|