说明：  图像模糊是由多种因素引起的如运动, 分散注意力,捕获光在非零的区域的 孔径和像素的存在反锯齿过滤器在 相机传感器和有限的感应器分辨率
(Image blur is caused by a number of factors such as motion, defocus, capturing light over the non-zero area of the aperture and pixel, the presence of anti-aliasing filters on a camera sensor, and limited sensor resolution)