基于正交采样的相位体三维形态快速重建算法  

Fast Three-Dimensional Morphological Reconstruction Algorithm of Phase objects Based on Orthogonal Sampling

作　　者：季颖[1] 黄锦槟 李响 王亚伟[1] Ji Ying;Huang Jinbin;Li Xiang;Wang Yawei(School of Physics and Electronic Engineering,Jiangsu University,Zhenjiang,Jiangsu 212013,China;College of Physics and Optoelectronic Engineering,Shenzhen University,Shenzhen,Guangdong 518061,China)

机构地区：[1]江苏大学物理与电子工程学院,江苏镇江212013 [2]深圳大学物理与光电工程学院,广东深圳518061

出　　处：《光学学报》2021年第23期156-165,共10页Acta Optica Sinica

基　　金：国家自然科学基金(11874184);江苏大学农业装备学部项目(NZXB20200215);江苏大学大学生科研课题立项资助项目(20A233)。

摘　　要：为满足临床检验等领域对快速获取形态信息的需求,提出了一种仅需2幅相位图的三维形态快速重建算法。该算法从2幅正交相位图中分别获取样品在相应入射光正投影面上的结构边界,通过建立、解算这2组正交的二维数据间的关联得到样品亚结构轮廓的三维坐标和平均折射率,进而给出各亚结构物理厚度的定量分布,实现样品三维结构重建。通过仿真和实验对具有不同结构特征的样品进行了三维形貌重建,实验结果验证了所提算法的有效性和普适性。In order to meet the needs of rapid acquisition of morphological information in clinical testing and other fields,a fast three-dimensional morphological reconstruction algorithm requiring only two phase images is proposed.The algorithm obtains the structural boundary of the sample on the corresponding incident light orthographic projection plane from two orthogonal phase diagrams.By establishing and solving the correlation between the two groups of orthogonal two-dimensional data,the three-dimensional coordinates and average refractive index of the sample substructure contour are obtained,and then the quantitative distribution of the physical thickness of each substructure is given to realize the three-dimensional structure reconstruction of the sample.The three-dimensional shape reconstruction of samples with different structural characteristics is carried out through simulation and experiments.The experimental results verify the effectiveness and universality of the proposed algorithm.

关 键 词：测量 相位测量 亚结构轮廓 平均折射率 三维形貌 

分 类 号：O436.1[机械工程—光学工程]