基于三波长相移轮廓术的相位展开算法

丁明君; 习江涛; 李光旭; 宋丽梅

doi:10.3788/OPE.20162413.0657

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基于三波长相移轮廓术的相位展开算法

更新时间：2020-08-13

- 基于三波长相移轮廓术的相位展开算法
- Phase unwrapping algorithm based on three-wavelength phase shift profilometry
- 光学精密工程 2016年24卷第10s期页码：657-664
- 作者机构：
  
  1. 天津工业大学电气工程与自动化学院天津,300387
  2. 天津工业大学电子与信息工程学院, 天津 300387
  3. 天津市光检测技术与系统重点实验室, 天津 300387
  4. 伍伦贡大学电气、计算机与通信工程学院, 新南威尔士州澳大利亚 2522
- 作者简介：
- 基金信息：
  
  国家自然科学基金项目（No.60808020）();天津市应用基础与前沿技术研究计划项目（No.14JCYBJC42300）()
- DOI：10.3788/OPE.20162413.0657
  中图分类号： TP391.44
- 收稿日期：2016-05-28，
  
  修回日期：2016-06-09，
  
  纸质出版日期：2016-11-14
- 稿件说明：
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丁明君, 习江涛, 李光旭等. 基于三波长相移轮廓术的相位展开算法[J]. 光学精密工程, 2016,24(10s): 657-664

DING Ming-jun, XI Jiang-tao, LI Guang-xu etc. Phase unwrapping algorithm based on three-wavelength phase shift profilometry[J]. Editorial Office of Optics and Precision Engineering, 2016,24(10s): 657-664
丁明君, 习江涛, 李光旭等. 基于三波长相移轮廓术的相位展开算法[J]. 光学精密工程, 2016,24(10s): 657-664 DOI： 10.3788/OPE.20162413.0657.

DING Ming-jun, XI Jiang-tao, LI Guang-xu etc. Phase unwrapping algorithm based on three-wavelength phase shift profilometry[J]. Editorial Office of Optics and Precision Engineering, 2016,24(10s): 657-664 DOI： 10.3788/OPE.20162413.0657.

摘要

针对多波长相移轮廓术方法测量速度慢、测量范围局限的问题，本文提出了三波长相移轮廓术测量方法，实现了对表面有阶跃变化的彩色三维物体的测量。介绍了三波长相移轮廓术的等效波长和包裹相位的正问题。然后，从等效波长的相位求解入手，进而推导出三个独立光波的相位展开方程。通过分析相位噪声产生的原因，提出了基于展开相位的相位去噪方法。实验结果表明：该方法的平均测量精度为0.018 mm，普通台式机处理耗时0.308 s。通过比较测量精度、测量速度、算法稳定性以及适应光源的范围等，证明了所提方法比目前常用的格雷码法和多波长相移轮廓术更优越。

Abstract

Aiming at problems of low measurement speed and limited measurement range for method of multi-wavelength phase shift profilometry

a three-wavelength phase shift profilometry was presented to realize the measurement of color three-dimensional object with step change on surface. Direct problem of equivalent wavelength and wrapped phase of three-wavelength phase shift profilometry was introduced. Then

starting with the phase solution of the equivalent wavelength

and therefore phase unwrapping equations of three independent light waves were deduced. By analyzing phase noise gener ation reasons

phase denoising method based on unwrapping phase was presented. Experimental results show that average measurement accuracy of the method is 0.018 mm; processing time of ordinary desktop computer is 0.308 s. By comparing measurement precision

measurement speed

algorithm stability

range of adaptive light source and other performances

it is proved that the proposed method is more superior to the commonly used gray code methods and multi-wavelength phase shift profilometry at present.

关键词

Keywords

references

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