一种改进的重心法在光带中心提取中的应用

介绍了光切法（LSM）的基本原理，在分析常用的几种光带中心提取法特点的基础上，针对实际光带中光强呈近似高斯分布的情况，提出改进的灰度重心算法。该方法增大了光强大的点在确定光带中心的权重，提高了测量精度，与现有的几种亚像素光带中心提取方法相比，提取的曲线更接近理想值，三维重构的效果很好，通过实验，结果令人满意。

A Improved Barycenter Method Used in Light-trap Center Acquiring

The basic principle of light-sectioning method(LSM) is described in this paper.On the basis of analyzing the features of several common methods used in acquiring light-trap center,in view of the condition that intensity distribution of light-trap is not accord with Gausses function completely,a new improved barycenter method is presented.This method strengthens the weightiness of the point whose light intensity is high,increases the measuring accuracy.We compared it with several existing subpixel level methods used in acquiring light-trap center.The experimental results show that the curve is more smoother,and the 3-D solid rebuilding effect is very good.