Karpouzas I, Pouliquen Y J
Institut National de la Santé et de la Recherche Médicale U. 86, Université Paris VI, France.
Cornea. 1991 Sep;10(5):369-71. doi: 10.1097/00003226-199109000-00001.
The aim of our study was to formulate the procedure of rotational autokeratoplasty; that is, design the computer system and software necessary to automatically define the parameters of the problem. To achieve this, we used a CCD camera (Nikon) and a microcomputer with an integrated IMAGENIA (Biocom) interface software card (512 x 512 pixels and 100 gray levels), which permitted acquisition and digitalization of photographs of the lesioned cornea. Digitization of the image allowed us to determine the coordinates (x,y) of the points that lay on the lesion periphery as well as the coordinates of the corneal center; i.e., the geometric center of the cornea. The center of trephination and the optimal diameter of trephination can then be calculated as a function of a point situated on the lesion edge.
我们研究的目的是制定旋转式自动角膜成形术的程序；也就是说，设计自动定义问题参数所需的计算机系统和软件。为实现这一目标，我们使用了一台CCD相机（尼康）和一台配有集成IMAGENIA（Biocom）接口软件卡的微型计算机（512×512像素，100级灰度），该软件卡可采集病变角膜的照片并进行数字化处理。图像数字化使我们能够确定位于病变周边的点的坐标（x，y）以及角膜中心的坐标，即角膜的几何中心。然后，可以根据位于病变边缘的一个点计算出环切中心和最佳环切直径。
