We applied several image restoration and enhancement techniques, to CORONAS-I images. We carried out the characterization of the Point Spread Function (PSF) using the unique capability of the Blind Iterative Deconvolution (BID) technique, which recovers the real PSF at a given location and time of observation, when limited a priori information is available on its characteristics. We also applied image enhancement technique to extract the small scale structure imbeded in bright large scale structures on the disk and on the limb. The results demonstrate the capability of the image post-processing to substantially increase the yield from the space observations by improving the resolution and reducing noise in the images
During the recent solar maximum the combination of imaging and spectroscopy in the visible part of t...
Blind Iterative Deconvolution (BID) is a technique which was originally developed to correct the deg...
We have successfully demonstrated significant improvements in the high contrast detection limit of t...
Extreme ultra-violet images of the corona contain information over a wide range of spatial scales, a...
New image processing techniques, applied to white-light, pB , UV or EUV observations, reveal the fin...
4 pagesInternational audienceThe mystery of the dynamics of the Sun is even deeper when it is quiet,...
<p>Pushing the limits of current remote sensing (RS) instrumental sensitivity and resolution, ...
International audienceFuture missions such as Solar Orbiter (SO), Inter- Helioprobe, or Solar Probe ...
Small-angle coronagraphy is technically and scientifically appealing because it enables the use of s...
Accurate astrometry and photometry of saturated and coronagraphic point spread functions (PSFs) are ...
International audienceWe consider the best today available observations of the Sun free of turbulent...
Context. For accurately measuring intensities and determining magnetic field strengths of small-sca...
The quality of images of the Sun obtained from the ground are severely limited by the perturbing eff...
The wealth of information regarding the structure and distribution of magnetic fields and plasmas em...
In the summer of 2012, the High-resolution Coronal Imager (Hi-C) flew aboard a NASA sounding rocket ...
During the recent solar maximum the combination of imaging and spectroscopy in the visible part of t...
Blind Iterative Deconvolution (BID) is a technique which was originally developed to correct the deg...
We have successfully demonstrated significant improvements in the high contrast detection limit of t...
Extreme ultra-violet images of the corona contain information over a wide range of spatial scales, a...
New image processing techniques, applied to white-light, pB , UV or EUV observations, reveal the fin...
4 pagesInternational audienceThe mystery of the dynamics of the Sun is even deeper when it is quiet,...
<p>Pushing the limits of current remote sensing (RS) instrumental sensitivity and resolution, ...
International audienceFuture missions such as Solar Orbiter (SO), Inter- Helioprobe, or Solar Probe ...
Small-angle coronagraphy is technically and scientifically appealing because it enables the use of s...
Accurate astrometry and photometry of saturated and coronagraphic point spread functions (PSFs) are ...
International audienceWe consider the best today available observations of the Sun free of turbulent...
Context. For accurately measuring intensities and determining magnetic field strengths of small-sca...
The quality of images of the Sun obtained from the ground are severely limited by the perturbing eff...
The wealth of information regarding the structure and distribution of magnetic fields and plasmas em...
In the summer of 2012, the High-resolution Coronal Imager (Hi-C) flew aboard a NASA sounding rocket ...
During the recent solar maximum the combination of imaging and spectroscopy in the visible part of t...
Blind Iterative Deconvolution (BID) is a technique which was originally developed to correct the deg...
We have successfully demonstrated significant improvements in the high contrast detection limit of t...