本文比较详细地介绍了视觉系统的空间频率通道的概念。特别是对有关视觉系统的MTF和对位相信息的传递特性,不仅系统地介绍了研究这类问题所用的技术,而且还对计算所得的结果进行了评价。 This paper introduces the concept of spatial frequency channel of vision system in more detail. In particular, the transmission of MTF and phase information about visual systems not only systematically introduces the techniques used to study such problems, but also evaluates the calculated results.