摘要
文中建立了结构光测量系统数学模型,并分析了结构光测量精度的影响因素。同时在结构光光条图像处理中改进了原有方法,使用了一种新的快速光条中心提取算法。文章通过设计标准板进行了精度检测实验,分析了系统对标准宽度和深度的测量精度。实验结果表明,该测量方法对深度的检测精度优于0.2 mm,对宽度的检测精度优于0.3 mm,可以满足亚毫米级微小变形检测的精度要求,是一种有效的微小变形检测和三维测量方法。
The mathematical model of structure light measurement system is established, and the factors influencing the measurement accuracy are analyzed. At the same time, a fast new light strip center edge extraction algorithm is used in the image processing method, which improves the extraction accuracy distinctly. The accuracy testing experiments are designed and analyzed by standard plate. The experimental results show that the measurement accuracy of this method is better than that of 0.2mm and 0.3mm, and reached in the detection depth and width on the regular groove, which can fully meet the requirements of sub-millimeter small deformation detection accuracy. It is an effective detection method.
出处
《光电工程》
CAS
CSCD
北大核心
2014年第5期52-56,共5页
Opto-Electronic Engineering
关键词
结构光
微小变形
标定
精度分析
验证
structure light
small deformation
calibration
accuracy analysis
verification
