Fractal-Based Fuzzy Technique For Detection Of Active Regions From Solar Images

Details Fractal-Based Fuzzy Technique For Detection Of Active Regions From Solar Images Fractal-Based Fuzzy Technique For Detection Of Active Regions From Solar Images

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005soph..228...43r&link_type=abstract

Solar Physics, Volume 228, Issue 1-2, pp. 43-53

Physics

5

Scientific paper

Fractal concepts are used to describe the irregular structures and regions of interest of solar images. The most common and easiest way to extract regions of interest from an image is through segmentation. Segmentation techniques vary from conventional edge-detection mechanism to fuzzy c-means clustering. In this study, the pixelwise local fractal dimension of solar images is computed by different techniques. This is followed by different segmentation procedures including the fuzzy-based approach, for extracting the active regions from chromospheric images and assessing their performance. These techniques have also been applied on solar images to extract active regions from Solar Heliospheric Observatory (SOHO) Extreme Ultraviolet Telescope (EIT) images.

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