To quantificationally analyze point spread function (PSF) models for full digital autofocus method, an evaluation method of mean square error between original image and processed image was proposed for comparison performance of algorithms.

• 摘要为了对用于全数字对焦的点扩散函数模型进行定量分析，提出用原始图像与处理所得图像的均方差进行性能评价的方法。