光电工程, 2014, 41 (5): 52, 网络出版: 2014-06-30
结构光三维测量系统精度分析及验证
Accuracy Analysis and Verification of Structured Light 3D Measurement System
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。
Abstract
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.
范生宏, 刘昌儒, 亓晓彤, 曹冬雨, 张丽华, 吴亚军, 王孟. 结构光三维测量系统精度分析及验证[J]. 光电工程, 2014, 41(5): 52. FAN Shenghong, LIU Changru, QI Xiaotong, CAO Dongyu, ZHANG Lihua, WU Yajun, WANG Meng. Accuracy Analysis and Verification of Structured Light 3D Measurement System[J]. Opto-Electronic Engineering, 2014, 41(5): 52.