应用光学, 2004, 25 (6): 57, 网络出版: 2006-05-19
光栅投影测量物体三维轮廓的条纹中心线相对偏移量的获取
Obtain the Relative Displacement of the Fringe-centerlines in the 3-D Profilometry Measurement Using Grating Projection
摘要
精确地获得光栅条纹中心线的相对偏移量,在三角形法测量物体三维轮廓技术中占有非常重要的地位。本文对光栅投影条纹图像进行预处理,提出采用重心法提取条纹中心线位置,可以获得亚像素级的精度;接着修补条纹中心线,采用模板技术跟踪条纹的走向,可求出条纹中心线相对参照平面条纹中心线的相对偏移量。
Abstract
It's important to accurately the relative displacament of the fringer-centerlines in the 3-D profilemetry measurement technology using the triangle method.The method of barycenter,which can obtain the sub-pixel accuracy to abstract the finge-centerlines and tracking its direction with the template technology,the relative displacement of the fringe-centerlines being relative to the reference fringe-centerlines can be obtained.
黄燕群, 田爱玲. 光栅投影测量物体三维轮廓的条纹中心线相对偏移量的获取[J]. 应用光学, 2004, 25(6): 57. 黄燕群, 田爱玲. Obtain the Relative Displacement of the Fringe-centerlines in the 3-D Profilometry Measurement Using Grating Projection[J]. Journal of Applied Optics, 2004, 25(6): 57.