Adaptive optics-corrected solar image quality assessment based on image power spectrum and human visual system

摘要: In ground-based large aperture solar telescopes, the speckle image reconstruction technique combined with adaptive optics (AO) correction is generally used to get near diffraction-limited images. order select high quality images from AO-corrected resolution sequence, an automated no-reference assessment (IQA) needed. According noise characteristics of AO images, IQA metric based on power spectrum and human visual system developed. By incorporation masking shifting spatial frequency range summation, our could sharper less than previous works spectrum, even if there scaling. Compared existing general-purpose metrics specifically designed for IQA, experimental results verify that proposed gains better performance whether robustness blur noise, or selecting frames containing granulations, sunspots, both them. (C) 2018 Society Photo-Optical Instrumentation Engineers (SPIE)