面向浮雕的激光测量中光刀中心提取

在用光切法进行位移和三维面形测量时，如何快速准确地提取光带条纹中心的位置是非常关键的问题。现从光切法原理出发，提出采用亚像素细分和变闽值质心法相结合进行光刀中心提取，提高了系统的测量精度和准确度。同时通过三角法对应关系推导出物像之间的线性关系，并用此关系式对系统标定。在对被测物体进行测量时，只需要简单地将观察量代入关系式就可以求出被测量，精确有效地描述浮雕的表面信息。

Acquisition of the light-knife center in measuring a relievo with laser

It is a very important issue to extract optical striped center quickly and accurately in 3D measurement based light-section.In this paper,we begin from the principle of light-section method,and advance a new method integrating the principles of sub-pixel segmentation and variable threshold-centroid method,effectively improve precision and accuracy of the system. At the same time,through the triangulation relationship we get the linear relationship of the object and image,and complete the system calibration....