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单目结构光三维重建

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本项目使用"互补格雷码+相移码"方法获取被测物体的三维信息,欢迎star⭐收藏!

matlab版本代码解码和重建比较完整比较完整,python版本在CSDN有更详细介绍。

点击这里查看PPT介绍。

1. 简介

系统硬件结构图如下:

hardware

1️⃣系统组成:

  • DLP投影仪:闻亭PRO6500
  • 灰度相机:FLIR BFS-U3-50S5
  • 旋转平台

2️⃣实验验证

使用上述硬件系统采集实验数据验证算法。

pattern图

pattern

实验图片

data

点云结果

pointcloud

pointclould

3️⃣算法流程

假设已经获得了系统标定参数,使用互补格雷码+四步相移码方法进行三维重建,整个重建过程可以分为六个步骤:

  1. 生成格雷码图像
  2. 生成四步相移图像
  3. 求解相对相位
  4. 求解绝对相位
  5. 获得相机-投影仪像素坐标之间的对应关系
  6. 根据标定参数获得重建点云信息

详细内容可以查看原理介绍或者CSDN

2. TODO

  • python版本代码编写计算三维点云代码
  • python版本代码重构
  • matlab版本代码优化效率
  • 补充投影仪-相机系统标定内容

3. 参考文献

[1] Zhang Q, Su X, Xiang L, et al. 3-D shape measurement based on complementary Gray-code light[J]. Optics and Lasers in Engineering, 2012, 50(4): 574-579.

[2] 张启灿, 吴周杰. 基于格雷码图案投影的结构光三维成像技术[J]. 红外与激光工程, 2020, 49(3): 0303004-1-0303004-13.

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