3D Measurement Technology Based on Binocular Vision Using a Combination of Gray Code and Phase-Shift Structured Light

LIN Huan; MA Zhi-feng; YAO Chun-hai; WANG Hao

doi:10.3969/j.issn.0372-2112.2013.01.005

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3D Measurement Technology Based on Binocular Vision Using a Combination of Gray Code and Phase-Shift Structured Light

更新时间：2025-07-16

- 3D Measurement Technology Based on Binocular Vision Using a Combination of Gray Code and Phase-Shift Structured Light
- Acta Electronica Sinica Vol. 41, Issue 1, Pages: 24-28(2013)
- 作者机构：
  
  北京理工大学信息与电子学院,北京,100081
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0372-2112.2013.01.005
  CLC： TH741
- Published：2013
- 稿件说明：
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LIN Huan, MA Zhi-feng, YAO Chun-hai, et al. 3D Measurement Technology Based on Binocular Vision Using a Combination of Gray Code and Phase-Shift Structured Light[J]. Acta Electronica Sinica, 2013, 41(1): 24-28.
DOI：

LIN Huan, MA Zhi-feng, YAO Chun-hai, et al. 3D Measurement Technology Based on Binocular Vision Using a Combination of Gray Code and Phase-Shift Structured Light[J]. Acta Electronica Sinica, 2013, 41(1): 24-28. DOI： 10.3969/j.issn.0372-2112.2013.01.005.

摘要

本文采用格雷码-相移组合的结构光

结合双目立体视觉技术

研究了三维表面测量方法.三维测量精度主要取决于格雷码-相移的解码精度

由于物体表面反射率不一致

不同区域又会相互反射

一般的阈值分割无法得到准确的二值化条纹图.因此在投射格雷码条纹图案基础上

再投射一组格雷码反码条纹图案.针对格雷码-相移解码过程中的周期错位问题

提出一种新的校正方法.将文中三维测量方法应用在人眼石膏模型的表面测量实验中

重建结果验证该方法的准确性和可靠性.

Abstract

3D surface measurement using binocular stereo vision technology and a coded structured light which combines Gray code with phase-shift is studied in this paper.The accuracy of 3D measurement mainly depends on the decoding of Gray code views and phase-shift views.However

it is difficult to threshold Gray code views because of the different albedos on regions of surface and interreflections on the surface.Therefore

after projecting Gray code patterns

their inverses are projected.A new method is proposed to solve the problem of period dislocation between Gray code and phase-shift in course of decoding.The experiment of the surface measurement of a human eye plaster model is used to test our 3D measurement method

and reconstruction results show the accuracy and reliability of our method.

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Related Institution

School of Computer Science,National University of Defense Technology

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