镜面反射
光学
结构光三维扫描仪
轮廓仪
投影(关系代数)
校准
度量(数据仓库)
镜面反射高光
材料科学
计算机科学
物理
表面光洁度
数据库
量子力学
复合材料
扫描仪
算法
作者
Liu Xiao-hong,Zonghua Zhang,Nan Gao,Zhaozong Meng
出处
期刊:Optics Express
[Optica Publishing Group]
日期:2020-09-02
卷期号:28 (19): 27561-27561
被引量:10
摘要
The three-dimensional (3D) data of object surfaces, like a precision machine part, play an important role in the fields of aerospace, automotive industry, augmented reality, heritage preservation, smart city, etc. The existing fringe projection profilometry and deflectometry can only measure the 3D shape of diffused and specular surfaces, respectively. However, there are many components having both diffused and specular surfaces. This paper presents a novel method for measuring the 3D shape of diffused/specular surfaces by combining fringe projection profilometry and direct phase measuring deflectometry. The principle and calibration method of the proposed method are elaborated. Experimental studies are conducted with an artificial diffused/specular step having diffused/specular surfaces to verify the measurement accuracy. The results on several objects show that the proposed method can measure diffused/specular surfaces effectively with certain accuracy. Error sources are also analyzed to improve the measurement accuracy.
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