本文提出了一种在舵面角度测量中多平面结构光光条的自动定位方法。该方法首先基于Steger方法提取舵面中多个平面的光条图像中心；然后基于直线约束和距离约束提取出各小直线段，并根据各直线段的直线方向将各小直线段归类为最后的光条直线；最后根据光条直线的位置判断各光条直线所在光平面及所在舵平面。经实验验证，本文方法切实有效，具有较高的鲁棒性。

An automatic localization method of light strips in multi-planar structures is proposed in order to solve the problem that it is difficult to distinguish light strip regions of irregular surface in rudder angular measurement based on the vision system of line-structured light. Firstly, the sub-pixel centers of curvilinear structures are extracted by Steger algorithm. Secondly, pieces of line segments are detected and labeled using line constraints and distance constraints to calculate the distances and orientations of points. Finally, different planes are located according to light strips positions. Experimental results show that the presented method is convenient and effective.