应用多相机三维数字图像相关实现口腔印模三维重构

基于三维数字图像相关（3D-DIC）方法，采用拼接技术对口腔印模的三维形貌进行了测量。针对具有复杂表面形貌的口腔印模，采用由四个水平布置的相机组成的两个3D-DIC 测量子系统，对每个子系统测量得到的局部形貌进行拼接，进而得到口腔印模的整体形貌。与传统的双相机3D-DIC 测量方法测量结果进行了比较。实验结果表明，采用本文方法能够较好地重构出复杂的口腔印模的三维形貌，为口腔印模的三维重建提供了一种新的途径，同时也为复杂表面物体的三维形貌测量提供了参考。

Abstract

Based on three- dimensional digital image correlation (3D- DIC) method, the three- dimensional shape of dental impression is measured by mosaic techology. Due to the surface feature of the dental impression is complex, a four camera system is utilized for the measurement. The system is made up of two groups of 3D- DIC subsystems. The local profile is measured by each subsystem and the global morphology is acquired by mosaicking each local profile. Compared with the result of traditional two cameras 3D- DIC method, the proposed method gains a better 3D profile of the complex dental impression, which provides a new way to measure the 3D profile of dental impression, and it also provides reference to the 3D profile measurement of complex surface.

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董帅, 戴云彤, 董萼良, 康新, 何小元. 应用多相机三维数字图像相关实现口腔印模三维重构[J]. 光学学报, 2015, 35(8): 0812006. Dong Shuai, Dai Yuntong, Dong Eliang, Kang Xin, He Xiaoyuan. Three-Dimensional Reconstruction of Dental Impression Based on Multi-Camera Three-Dimensional Digital Image Correlation Method[J]. Acta Optica Sinica, 2015, 35(8): 0812006.

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