An Image Restoration Technique Using Patch-Based Reference Frame for Through-the-Air Imaging

Removing geometric distortions from a sequence of atmospheric turbulence-degraded video is a challenging task. An improved method for geometrical corrections of a video sequence of a far-flung stationary scene is introduced in this paper. A patch-based technique is used to obtain a reference frame from a video sequence, in which the reference frame is built using patches of the best quality from different frames of the video sequence. A window-based image registration is used to estimate the geometrical shifts of the pixels, which is utilized later to restore a high-quality frame. The performance of the proposed method is compared with two earlier similar image restoration methods. Experimental findings show that the proposed patch-based image restoration method provides higher accuracy than other methods.