光学传递函数方法是评价成象过程质量的一种新的方法。由于它具有理论严密,可以实现光电自动测量,数字化显示,并可推广到成象过程的各个环节,便于总体质量评价等优点,近年来得到较快地发展和越来越普遍地应用。光学传递函数概念是基于富利叶分析理论,即任何物体的亮度分布都可分解为一组 The optical transfer function method is a new method to evaluate the quality of imaging process. Because of its rigorous theory, it can realize photoelectric automatic measurement and digital display, and can be extended to all aspects of the imaging process for the convenience of overall quality evaluation. In recent years, it has been developed rapidly and used more and more widely. The concept of optical transfer function is based on the Fourier analysis theory that the brightness distribution of any object can be decomposed into a group