Miszalok V, Wollensak J
Ophthalmologica. 1982;184(4):181-9. doi: 10.1159/000309204.
A method for transformation of photographic transparencies into three-dimensional relief pictures is presented. Black-and-white or color slides of fundi were scanned by a TV camera, the video signals digitized point by point into 256 gray levels and fed into an image processing computer. After passing low pass filter programs, the pictures were retransformed in an analog form to display them on the monitor of an analog processor in relief form. Free choice of the analog relief parameters allow to produce topographic reliefs, which give three-dimensional impression of the optic disk, the macula and of other contrast-containing structures. The method is peculiarly suitable for the control of optic disk atrophies in case of glaucoma and neuritis.
本文介绍了一种将摄影透明片转换为三维浮雕图像的方法。眼底的黑白或彩色幻灯片由电视摄像机扫描，视频信号逐点数字化为256个灰度级，然后输入图像处理计算机。经过低通滤波程序后，图像以模拟形式重新转换，以便在模拟处理器的监视器上以浮雕形式显示。通过自由选择模拟浮雕参数，可以生成地形图，从而给出视盘、黄斑和其他含对比度结构的三维印象。该方法特别适用于青光眼和神经炎病例中视盘萎缩的控制。
