计算机工程 ›› 2012, Vol. 38 ›› Issue (22): 291-292.doi: 10.3969/j.issn.1000-3428.2012.22.073

• 开发研究与设计技术 • 上一篇    

基于线结构光的三维坐标测量技术研究

宋大虎 1,李忠科 1,程春霞 2   

  1. (1. 第二炮兵工程大学401教研室,西安 710025;2. 西安电子科技大学天线与微波技术国家重点实验室,西安 710071)
  • 收稿日期:2012-01-09 修回日期:2012-03-20 出版日期:2012-11-20 发布日期:2012-11-17
  • 作者简介:宋大虎(1977-),男,博士研究生,主研方向:计算机图形学,计算机辅助几何设计;李忠科,教授、博士生导师;程春霞,博士研究生
  • 基金项目:
    国家科技支撑计划基金资助项目(2009BAI81B00)

Research on 3D Coordinate Measurement Technology Based on Line Structured Light

SONG Da-hu 1, LI Zhong-ke 1, CHENG Chun-xia 2   

  1. (1. 401 Staff Room, The Second Artillery Engineering University, Xi’an 710025, China; 2. National Key Laboratory of Antennas and Microwave Technology, Xidian University, Xi’an 710071, China)
  • Received:2012-01-09 Revised:2012-03-20 Online:2012-11-20 Published:2012-11-17

摘要: 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。

关键词: 线结构光, 三维坐标测量, 摄像机标定, 光平面标定, 最小二乘法, 点云

Abstract: 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.

Key words: line structured light, 3D coordinate measurement, camera calibration, light plane calibration, least square method, point cloud

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