外文题目: Temporal speckle method for measuring three-dimensional surface of large-sized rough glass
作者: Li, Chao; Zhou, Changhe; Wang, Shaoqing; Fan, Xin; Yang, Boquan; Lu, Yancong; Li, Hao; Liu, Zhao
刊名: Proc.SPIE
来源图书: HOLOGRAPHY, DIFFRACTIVE OPTICS, AND APPLICATIONS VII
年: 2017 卷: 10022 文章编号：100220N
会议名称: Conference on Holography, Diffractive Optics, and Applications VII
英文关键词:
3-D measurement; large-sized rough glass; scattering; band-limited; temporal speckle; fast; accurate
STRUCTURED-LIGHT; LASER SPECKLES; STEREO; DEPTH
英文摘要:
To provide accurate three-dimensional (3-D) data for production and processing, 3-D surface measurement is always an essential step to the production of glass. Profilometry and Interferometry are traditional measurement apparatus, referring to different procedures. Although more precise, Interferometry cannot be used in milling procedure, owing to the scattering property of rough glass. While as a widely used Profilometry, Coordinate Measuring Machine (CMM) employs a probe for measuring by contacting surface directly. It should be noted that such a time-consuming machine is not practical for measuring large-sized rough glass, so a novel designed method called temporal speckle is introduced to a non-contact binocular 3-D measurement system for measuring. Specifically, N band-limited binary patterns are sequentially projected to rough glass from a pattern generation device, such patterns have been proved to depress scattering properties of rough surface. The whole binocular 3-D measurement system can finish a single measurement in one second with a standard deviation less than 73.44um. This system performs fast and accurate 3-D surface measurement for large-sized rough glass block.


文献类型: 会议论文
正文语种: English
收录类别: ISTP
DOI: 10.1117/12.2246077


全文传递服务