１引言双光源光切法是在光切法三维测量基础上，利用双目立体视觉原理、修复被测体表面陡峭处数据缺损的一种有效手段［１～２］。其基本原理如图１（ａ）所示，如以柱坐标描述被测体轮廓参数，则可简化为图１（ｂ）的二维模型。根据图示几何关系，在两光源交点Ｏ与被测体... 1 Introduction Dual-light source light-cut method is based on the light-cut method of three-dimensional measurement, the use of binocular stereo vision principle, repair the measured body surface steep data loss is an effective means of [1 ~ 2]. The basic principle shown in Figure 1 (a), such as the coordinates of the cylindrical body to describe the profile parameters, can be simplified as shown in Figure 1 (b) of the two-dimensional model. According to the graphical relationship between the intersection of the two light source O and the body to be measured ...