Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 6 of 6 for “"filament detection"”.
-
Development of advanced algorithms to detect, characterize and forecast solar activities
… in space weather research: automatic feature detection and forecasting of eruptive events. Feature detection includes solar filament detection and solar fibril tracing. A solar filament consists of a mass of gas suspended over the chromosphere by magnetic fields and seen as a dark, …
-
Automatic solar feature detection using image processing and pattern recognition techniques
… detect and characterize solar flares, filaments and Corona Mass Ejections (CMEs), the core of so-called solar activity. These tools will assist us to predict space weather caused by violent solar activity. Image processing and pattern recognition techniques are applied to this system. …
-
The development of automatic and solar imaging techniques for the accurate detection, merging, verification and tracking of solar filaments
Based on a study of existing solar filament and tracking methods, a fully automated solar filament detection and tracking method is presented. An adaptive thresholding technique is used in a segmentation phase to identify candidate filament pixels. This phase is followed by retrieving the actual …
-
Automated image-based analysis methods for filament networks structures in two and three dimensions
… natural organisms with a morphology resembling filament networks, notable examples include mycorrhizal networks, which are filamentous structures formed by underground growing fungi that establish symbiotic relationships with plant roots: in these relationships, the fungus obtains sugar in …
-
Image enhancement techniques applied to solar feature detection
… image enhancement techniques for solar feature detection. The new method allows for detection and tracking of the evolution of filaments in solar images. Series of H-alpha full-disk images are taken in regular time intervals to observe the changes of the solar disk features. In each picture, the …
-
2D and 3D surface image processing algorithms and their applications
… for 2D image segmentation application of solar filament disappearance detection, 3D mesh simplification, and 3D image warping in pre-surgery simulation. Filament area detection in solar images is an image segmentation problem. A thresholding and region growing combined method is proposed and …