Simonds R M
Appl Opt. 1981 Feb 15;20(4):619-22. doi: 10.1364/AO.20.000619.
Image data processing based on optical scanning and digital reconstruction frequently ignores artifacts produced by the scanning process itself. Characterization of these artifacts by measurement of system modulation transfer function (MTF) using the traditional knife-edge scan technique produces only one section of the 2-D MTF, and interpretation of this as representative of the complete MTF may yield misleading re A theoretical analysis is presented which allows reconstruction of the complete 2-D MTF from a sequence of knife-edge measurements, and an experimental example is shown for the case of a vidicon camera based scanning system.
基于光学扫描和数字重建的图像数据处理常常忽略扫描过程本身产生的伪像。使用传统刀口扫描技术通过测量系统调制传递函数（MTF）来表征这些伪像，只能得到二维MTF的一个截面，将其解释为完整MTF的代表可能会产生误导性结果。本文提出了一种理论分析方法，可根据一系列刀口测量结果重建完整的二维MTF，并给出了一个基于光导摄像管相机的扫描系统的实验示例。
