Phase-based stereo matching using epipolar line rectification

JIANG Hong-zhi; ZHAO Hui-jie; LIANG Xiao-Yue; LI Dong

doi:10.3788/OPE.20111910.2520

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Phase-based stereo matching using epipolar line rectification

Article | 更新时间：2020-08-12

- Phase-based stereo matching using epipolar line rectification
- Optics and Precision Engineering Vol. 19, Issue 10, Pages: 2520-2525(2011)
- 作者机构：
  
  北京航空航天大学仪器科学与光电工程学院精密光机电一体化技术教育部重点实验室北京,100191
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20111910.2520
  CLC： TP391.4
- Received：15 November 2010，
  
  Revised：15 February 2011，
  
  Published Online：27 October 2011，
  
  Published：25 October 2011
- 稿件说明：
移动端阅览
姜宏志, 赵慧洁, 梁宵月, 李冬. 基于极线校正的快速相位立体匹配[J]. 光学精密工程, 2011,19(10): 2520-2525

JIANG Hong-zhi, ZHAO Hui-jie, LIANG Xiao-Yue, LI Dong . Phase-based stereo matching using epipolar line rectification[J]. Editorial Office of Optics and Precision Engineering, 2011,19(10): 2520-2525
姜宏志, 赵慧洁, 梁宵月, 李冬. 基于极线校正的快速相位立体匹配[J]. 光学精密工程, 2011,19(10): 2520-2525 DOI： 10.3788/OPE.20111910.2520.

JIANG Hong-zhi, ZHAO Hui-jie, LIANG Xiao-Yue, LI Dong . Phase-based stereo matching using epipolar line rectification[J]. Editorial Office of Optics and Precision Engineering, 2011,19(10): 2520-2525 DOI： 10.3788/OPE.20111910.2520.

摘要

基于双目结构的投影栅相位法利用相位值建立左右图像对应点匹配关系

但传统相位立体匹配方法匹配速度较慢

因此本文提出了一种基于极线校正的相位立体匹配方法来提高相位立体匹配速度。首先

通过极线校正算法将双目立体视觉几何结构转换成极线标准几何结构

即左图中任意一点在右图的极线是与该点纵坐标相同的水平直线。然后

在对左右相位图进行极线校正的基础上

给出了改进的相位立体匹配方法步骤。最后

通过对实物进行三维重建

分析比较了传统相位立体匹配方法与改进方法的性能。实验结果表明

与传统方法相比

改进的方法将匹配时间缩短了63%

能够满足工业应用对测量速度的要求。

Abstract

Projected grating phase method with two-camera setups uses phase values to set up the corresponding points between the left and right images. For solving the problem of a lower speed in the traditional phase-based stereo matching method

a new phase-based stereo matching method using epipolar line rectification is presented to improve the speed of phase-based stereo matching. Firstly

the epipolar line rectification algorithm is used to transform the bi-stereo geometry into the epipolar standard geometry. That is

the epipolar line for a certain point on the left image is simply the horizon line with the same row coordinate on the right image. Then

based on the epipolar line rectifications of left and right phase maps

procedures of improved phase-based stereo matching method are presented. Finally

through three-dimensional reconstruction of certain objects

this paper analyses and compares the performances of original and improved phase-based stereo matching methods. The experimental results show that the improved method has shortened the matching time by 63 percent as compared with that of traditional method. The method can meet the requirements of high speed for industrial measurements.

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references

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