Space Code Projection Method for Shape Measurement of 3D Large Objects

shi-qun Jin

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Space Code Projection Method for Shape Measurement of 3D Large Objects

Article | 更新时间：2020-08-13

- Space Code Projection Method for Shape Measurement of 3D Large Objects
- Optics and Precision Engineering Vol. 16, Issue 11, Pages: 2268-2273(2008)
- 作者机构：
  
  合肥工业大学仪器科学与光电工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：22 October 2007，
  
  Revised：14 March 2008，
  
  Published Online：25 November 2008，
  
  Published：25 November 2008
- 稿件说明：
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刘晨,金施群. 基于空间编码投影法测量三维大物体面形[J]. 光学精密工程, 2008,16(11):2268-2273

shi-qun Jin. Space Code Projection Method for Shape Measurement of 3D Large Objects[J]. Optics and precision engineering, 2008, 16(11): 2268-2273.
刘晨,金施群. 基于空间编码投影法测量三维大物体面形[J]. 光学精密工程, 2008,16(11):2268-2273 DOI：

shi-qun Jin. Space Code Projection Method for Shape Measurement of 3D Large Objects[J]. Optics and precision engineering, 2008, 16(11): 2268-2273. DOI：

摘要

三维图像拼接技术是实现大型物体形貌测量的关键技术。本文在图像控制点约束的基础上，提出了一种实现三维图像拼接的新方法，即将一伪随机空间编码投射到一大型物体表面，然后用CCD在不同视角拍摄不同视场中的物体，利用重叠区域相同的某一窗口特征点进行配准，采用四元组法求取坐标转换矩阵，从而实现大范围自由曲面三维形貌的测量。实验结果表明：基于空间编码的图像拼接新方法，可以实现大尺度三维面形的测量。

Abstract

3D image merging technique is a key technique in measuring large scale free form surface. Based on image-control-point-restrain theory

the paper presents a new method of 3D image merging technology. In this method

a pseudo-random space code is first projected on a large object surface

and the images of the object are taken from different angle of views. By matching the window interest points on the overlapping region

the coordinate transformation matrix was obtained and 3D measurement of large- scale free-form surface was realized. Experiment result shows that by this new method of space code image merging technology

large-scale 3D shape can be successfully measured

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