Investigation on the correction method of distorted image caused by aero-optic effects based on matching of feature points

For the correction of degraded images caused by aero-optic effects,a pixel deviation blind correction method based on matching of feature points is proposed.Since pixel deviation caused by high-speed flow field is random and nonlinear,a mathematic model of quadratic function is adopted to simulate the effect of pixel deviation.Meanwhile,ideal images are approximated using statistical rule of pixel deviation of multi-frame sequential images.Accordingly,deviation of each frame of degraded image is successfully corrected.Simulation experiments are performed on PC.The experimental results illustrate that the proposed method is efficient.