Development of a novel astronomical-image restoration method using parallel wavefront sensors

我们开发了一种图像后处理方法，通过自适应光学（AO）系统改善太阳图像的部分校正。我们的方法是在AO系统中加入另一个波前传感器，利用外部触发器同时观测太阳图像和波前信息。从波前信息估计出一个点积函数，然后对太阳图像进行反卷积以改进。将该方法应用于飞驒天文台无穹顶太阳望远镜观测到的图像，得到了较好的复原效果。

We developed an image post-processing method of improving solar images partially-corrected through an adaptive optics (AO) system. In our method, another wavefront sensor is added into the AO system, and a solar image and wavefront information are simultaneously observed using an external trigger. A PSF is estimated from the wavefront information and then the solar image is deconvolved to be improved. We applied our method to images observed with the domeless solar telescope of the Hida Observatory, and confirmed good restoration.