摘要
提出了一种可以对被任意形式的运动所造成的退化图像进行恢复的方法,给出了理论推导,并建立了一套实现系统。解决了以前的恢复方法存在的只能恢复特定运动形式(如匀速直线运动)的模糊图像的局限性问题。在主CCD曝光的同时,利用低分辨力的黑白快速CCD获得多帧图像,根据这些图像序列来计算位移,然后求得相对运动的瞬时速度,根据理论分析,点扩展函数和瞬时速度有着对应的关系,进而计算出模糊过程的点扩散函数(PSF),并用来RL迭代法来恢复模糊图像。实验结果表明,这种恢复方法对任意运动形式造成的模糊,能够得到较好的恢复效果。
This paper provides a new method to restore the image blurred by any motion and a corresponding system for experiments is established. Previous restoration methods can only be useable when the motion is special, for example, uniform rectilinear motion, which is solved in the paper. During the integral time of prime CCD, a series of images used to compute the displacement, are captured by the low resolution white-black CCD. And then, the instantaneous speed can be computed. From the theoretic analysis, we know that the Point Spread Function （PSF） has corresponding relationship with the instantaneous speed. Then the PSF for restoring the blurred image can be worked out. Finally, the Richard-Lucy （RL） method is used to restore the blurred image. The experiment shows that, for any motion blurred images, this method for image restoration can get preferable results.
出处
《光电工程》
CAS
CSCD
北大核心
2009年第3期69-73,共5页
Opto-Electronic Engineering
