基于线结构光的三维坐标测量技术研究

摘要

The traditional modeling technology of dental restoration is often difficult to meet the requirements of precision. Therefore, this paper proposes a 3D coordinate measurement method based on line structured light. It calibrates the camera, caculates the light plane equation by least squares method, and uses a motorized translation stage and rotary stage scan method to get 3D surface data, which avoids the intrinsic and extrinsic parameters calculation of the camera. Experimental result indicates that the 3D model after reconstruction can meet the precision requirement.%传统的口腔修复体三维点云数据测量技术难以满足精度要求.为此,提出一种基于线结构光的三维坐标测量方法.在摄像机标定过程中,采用最小二乘法计算光平面方程,使用平移扫描和旋转扫描获取物体表面三维数据,以避免求解摄像机内外参数.实验结果表明,重建后的三维模型可以满足高精度近景三维测量的要求.