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astro-ph.IM2025
A method of Extracting Flat Field from Real Time Solar Observation Data
YaHui Jin, Hui Liu, KaiFan Ji +2
Existing methods for obtaining flat field rely on observed data collected under specific observation conditions to determine the flat field. However, the telescope pointing and the…
astro-ph.IM2025
A High-Accuracy Alignment Approach for Solar Images of Different Wavelengths
Yun Wang, KaiFan Ji, Zhenyu Jin +1
Image alignment plays a crucial role in solar physics research, primarily involving translation, rotation, and scaling. \G{The different wavelength images of the chromosphere and t…