Image Quality in High-resolution and High-cadence Solar Imaging

  title={Image Quality in High-resolution and High-cadence Solar Imaging},
  author={Carsten Denker and Ekaterina Dineva and Horst Balthasar and Meetu Verma and Christoph Kuckein and Andrea Diercke and S. J. Gonz{\'a}lez Manrique},
  journal={Solar Physics},
Broad-band imaging and even imaging with a moderate bandpass (about 1 nm) provides a photon-rich environment, where frame selection (lucky imaging) becomes a helpful tool in image restoration, allowing us to perform a cost-benefit analysis on how to design observing sequences for imaging with high spatial resolution in combination with real-time correction provided by an adaptive optics (AO) system. This study presents high-cadence (160 Hz) G-band and blue continuum image sequences obtained… 

High-cadence Imaging and Imaging Spectroscopy at the GREGOR Solar Telescope—A Collaborative Research Environment for High-resolution Solar Physics

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Abstract We present the first images of a coordinated campaign to follow active region NOAA 12709 on 2018 May 13 as part of a joint effort between three observatories (China-Europe). The active

The History of the Development and Genesis of Works on Adaptive Optics at the Institute of Atmospheric Optics

Abstract A survey of the development of adaptive optics, its methods, and tools for the elimination of irregular distortions appearing in the process of light propagation in an inhomogeneous medium

The History of the Development and Genesis of Works on Adaptive Optics at the Institute of Atmospheric Optics

A survey of the development of adaptive optics, its methods, and tools for the elimination of irregular distortions appearing in the process of light propagation in an inhomogeneous medium is

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The results show that with a high-resolution image as reference, the perception evaluation can give a robust estimate of the image quality for solar images in different scenarios.



High-Spatial-Resolution Imaging Combining High-Order Adaptive Optics, Frame Selection, and Speckle Masking Reconstruction

We present, for the first time, high-spatial-resolution observations combining high-order adaptive optics (AO), frame selection, and post-facto image correction via speckle masking. The data analysis

High-efficiency lucky imaging

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Near Real-Time Image Reconstruction

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Objective Image-Quality Assessment for High-Resolution Photospheric Images by Median Filter-Gradient Similarity

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Field-Dependent Adaptive Optics Correction Derived with the Spectral Ratio Technique

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Context. High-resolution observations from large solar telescopes require adaptive optics (AO) systems to overcome image degradation caused by Earth’s turbulent atmosphere. AO corrections are,

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We use a Lucky Imaging system to obtain I -band images with much improved angular resolution on a 2.5 m telescope. We present results from a 10-night assessment campaign on the 2.56 m Nordic Optical