绝对相位
算法
结构光三维扫描仪
计算机科学
稳健性(进化)
相位展开
光学
轮廓仪
点(几何)
相(物质)
人工智能
相位恢复
干涉测量
计算机视觉
数学
相位噪声
傅里叶变换
物理
数学分析
生物化学
化学
几何学
扫描仪
量子力学
表面粗糙度
基因
作者
Haihua An,Yiping Cao,Haitao Wu,Na Yang,Chuan Xu,Hongmei Li
出处
期刊:Optics Express
[The Optical Society]
日期:2021-06-16
卷期号:29 (13): 20657-20657
被引量:24
摘要
In this paper, a generalized spatial-temporal phase unwrapping algorithm (STPUA) is proposed for extracting the absolute phase of the isolated objects with intricate surfaces. This proposed algorithm can eliminate thoroughly the order jumps of various temporal phase unwrapping algorithms (TPUAs), while inheriting the high measuring accuracy of quality-guided phase unwrapping algorithms (QGPUAs). Differing from the traditional phase unwrapping algorithms, wrapped phase is first divided into several regional wrapped phases, which can be extracted successively according to its areas and unwrapped individually by QGPUAs. Meanwhile, a series of reliable points from the fringe order map obtained from the code deformed patterns are selected to map the corresponding regional unwrapped phases into an absolute phase. The radii of selecting reliable points can provide the high measuring robustness compared with the classical point-to-point TPUAs for the complex surfaces and the motion blur, while keeping the same number of patterns. Therefore, the proposed STPUA combining SPUAs and TPUAs also can be employed in real-time three-dimensional (3D) reconstruction. Theoretical analysis and experimental results are performed to verify the effectiveness and capability of the proposed algorithm.
科研通智能强力驱动
Strongly Powered by AbleSci AI