JIN Chuan,XIAO Chao.Inverse Fringe Generation Method based on Temporal Phase[J].Journal of Chengdu University of Information Technology,2016,(04):382-385.
基于时间相位的反向条纹测量方法
- Title:
- Inverse Fringe Generation Method based on Temporal Phase
- 文章编号:
- 2096-1618(2016)04-0382-04
- Keywords:
- optical measurement; inverse fringe generation; temporal phase; structured light projection
- 分类号:
- TP391.7
- 文献标志码:
- A
- 摘要:
- 为提升反向条纹生成的速度和精度,提出一种基于时间相位的反向条纹生成方法。方法在垂直和水平两个方向上分别生成一系列条纹周期不同的标准结构光条纹并依次投射到待测物体上,然后将垂直和水平方向的标准条纹和反射得到的变形条纹基于三频时间相位展开算法展开,可得到在两个方向上连续分布的相位,并进一步生成反向条纹。计算机实物仿真实验表明,与已有方法相比,文中所提方法在原理上避免了空间相位展开法引起的像素间传播误差,在反向条纹生成的精度上有所改进,具有良好的实际应用价值。
- Abstract:
- In order to improve the speed and accuracy of inverse fringe, an inverse fringe generation method based on temporal phase is proposed. In this method, a series of standard structured light fringe of different period of fringe are generated in the vertical and horizontal directions,and project it onto the object in turn.Then,the standard structured light fringe and deformation fringe which is generated by reflection are unwrapped by algorithm based on triple frequency temporal phase unwrapping.Finally, continuous distribution phase are available through the above method and the inverse fringe could be generated easily. The real object experiments demonstrate that the method proposed in this paper gets an improvement at the accuracy of inverse fringe generation compared with existing methods which avoid the error-diffusing of pixels is caused by spatial phase unwrapping.Thus, the proposed method has a good practical application value.
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备注/Memo
收稿日期:2016-07-26 基金项目:大学生创新创业训练计划基金资助项目(CX2015033)