In the last years, our group started to develop image processing procedures to analyze data coming from ground-based solar telescopes, both for observations with high spatial and spectroscopic resolution (THEMIS, DST at NSO/SP), and for full-disk observations (RISE/PSPT-OAR). The main procedures we developed to produce Advanced Calibrated Data (ACD) are the following: 1. standard digital image corrections (flat-field, dark current; global motion and oscillation filtering when requested); 2. image segmentation (identification of granules, granular and super-granular cells, and solar network); 3. non-linear fitting of spectral cubes derived from Fabry-Perot (FP) imaging spectrometer and instrumental spectral corrections; 4. image restoration (Wiener filtering, Phase Diversity Technique); 5. feature tracking (neural network, threshold method, CLT). Thanks to that, we acquired a wealth of solar data processing and display routines. In this framework we are interested in collaboration for the Visible-Light Imager and Magnetograph (VIM) data processing system. In particular we propose our participation in the realization of the analysis pipeline and graphical interface for the VIM instrument.

Analysis of high resolution and full disk solar images

PIETROPAOLO, Ermanno;
2001-01-01

Abstract

In the last years, our group started to develop image processing procedures to analyze data coming from ground-based solar telescopes, both for observations with high spatial and spectroscopic resolution (THEMIS, DST at NSO/SP), and for full-disk observations (RISE/PSPT-OAR). The main procedures we developed to produce Advanced Calibrated Data (ACD) are the following: 1. standard digital image corrections (flat-field, dark current; global motion and oscillation filtering when requested); 2. image segmentation (identification of granules, granular and super-granular cells, and solar network); 3. non-linear fitting of spectral cubes derived from Fabry-Perot (FP) imaging spectrometer and instrumental spectral corrections; 4. image restoration (Wiener filtering, Phase Diversity Technique); 5. feature tracking (neural network, threshold method, CLT). Thanks to that, we acquired a wealth of solar data processing and display routines. In this framework we are interested in collaboration for the Visible-Light Imager and Magnetograph (VIM) data processing system. In particular we propose our participation in the realization of the analysis pipeline and graphical interface for the VIM instrument.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11697/43647
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