Lehn W H, E-Arini M B
Appl Opt. 1978 Oct 1;17(19):3146-51. doi: 10.1364/AO.17.003146.
Interactive computer graphics is applied to the transmission of visual images through the lower atmosphere. The required input data to the computer consist of an atmospheric temperature profile and light-pen sketches of three objects at various distances from the observer. A transfer characteristic, computed from a bundle of rays leaving the observer, maps each object's actual location into a corresponding image. The three images, and the horizon line, are then simultaneously displayed on the graphics terminal, thus generating a pictoral version of what the observer would see. This program provides an essential aid to the study of atmospheric refraction.
交互式计算机图形学应用于视觉图像在低层大气中的传输。计算机所需的输入数据包括大气温度剖面以及三个距观察者不同距离的物体的光笔草图。从离开观察者的一束光线计算出的传递特性，将每个物体的实际位置映射到相应的图像中。然后，这三个图像以及地平线会同时显示在图形终端上，从而生成观察者所看到景象的图像版本。该程序为大气折射的研究提供了重要帮助。
