Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996apj...466..585m&link_type=abstract
Astrophysical Journal v.466, p.585
Astronomy and Astrophysics
Astronomy
74
Methods: Numerical, Sun: Flares, Sun: X-Rays, Gamma Rays, Techniques: Image Processing
Scientific paper
We present results from the application of pixon-based multiresolution image reconstruction to real and simulated data from Yohkoh's Hard X-ray Telescope (HXT). The goal of the pixon algorithm is to minimize the number of degrees of freedom used to describe an image within the accuracy allowed by the noise. This leads to a reconstruction that is optimally constrained. We apply the pixon code to two solar flares in the HXT database and compare the results of the pixon reconstruction to the results of a direct, linear, smoothed inversion of the HXT Fourier synthesis data and to a maximum entropy reconstruction. The maximum entropy reconstruction is vastly better than the direct inversion, but the pixon reconstruction gives superior noise suppression and photometry. Further, the pixon reconstruction does not suffer from overresolution of the images.
Hudson Hugh S.
Kosugi Takeo
Metcalf Thomas R.
Pina Robert K.
Puetter Richard C.
No associations
LandOfFree
Pixon-based Multiresolution Image Reconstruction for Yohkoh's Hard X-Ray Telescope does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Pixon-based Multiresolution Image Reconstruction for Yohkoh's Hard X-Ray Telescope, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pixon-based Multiresolution Image Reconstruction for Yohkoh's Hard X-Ray Telescope will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1116810