Analysis and simulation of images degraded by complex vibration

The vibration of platforms would lead to the relative motion between the optical camera and the scene in the exposure time, seriously affecting the image quality. But the model of degradation may not be single. To solve the problem of image simulation degraded by complex forms of vibration with high-order and multimode, the differential image motion path degradation method based on the matrix of image motion is proposed. With this method we can have an overall consideration of both the airspace and frequency domain features of the vibration's impact on imaging. Actually, as long as the vibration function is known, the degraded image can be simulated with an original image. And by contrast of the theoretical features and the measured features of degraded images' spectrum, reliability of the simulation method can be validated. The simulation algorithm can control the degradation parameters accurately and flexibly and provide great convenience to the restoration of the degraded images.