典型的图像复原是根据图像退化的先验知识建立一个退化模型，以此模型为基础，采用各种逆退化处理方法进行恢复，使图像质量得到改善。-The typical image restoration is a degradation model, this model based on a priori knowledge of image degradation, degradation of a variety of inverse approach to recover, so that the ima