Kawagishi Norikazu, Kakinuma Ryota, Yamamoto Hirotsugu
Opt Express. 2020 Nov 23;28(24):35518-35527. doi: 10.1364/OE.408983.
Image resolution is one of the most important performance specifications of aerial display techniques. However, there is no standard method for evaluating the aerial image resolution. In this paper, we propose a method for measuring the modulation transfer function (MTF) of an aerial imaging system based on the slanted knife edge method. We hypothesize that aerial images have a different blur function from standard camera images. In order to explore this, we simulate blurred slanted knife edge images by convolving two types of blur functions. Furthermore, the MTF curves of the aerial image formed using different retro-reflectors are compared using the proposed method.
图像分辨率是航空显示技术最重要的性能指标之一。然而，目前尚无评估航空图像分辨率的标准方法。在本文中，我们提出了一种基于倾斜刀口法测量航空成像系统调制传递函数（MTF）的方法。我们假设航空图像具有与标准相机图像不同的模糊函数。为了探究这一点，我们通过对两种模糊函数进行卷积来模拟模糊的倾斜刀口图像。此外，使用所提出的方法比较了使用不同后向反射器形成的航空图像的MTF曲线。
