Multilevel quality-guided phase unwrapping algorithm for real-time three-dimensional shape reconstruction

Song Zhang Xiaolin Li Shing-Tung Yau

Numerical Analysis and Scientific Computing mathscidoc:1912.43487

Applied optics, 46, (1), 50-57, 2007.1
A multilevel quality-guided phase unwrapping algorithm for real-time 3D shape measurement is presented. The quality map is generated from the gradient of the phase map. Multilevel thresholds are used to unwrap the phase level by level. Within the data points in each level, a fast scan-line algorithm is employed. The processing time of this algorithm is approximately 18.3 ms for an image size of 640480 pixels in an ordinary computer. We demonstrate that this algorithm can be implemented into our real-time 3D shape measurement system for real-time 3D reconstruction. Experiments show that this algorithm improves the previous scan-line phase unwrapping algorithm significantly although it reduces its processing speed slightly.
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@inproceedings{song2007multilevel,
  title={Multilevel quality-guided phase unwrapping algorithm for real-time three-dimensional shape reconstruction},
  author={Song Zhang, Xiaolin Li, and Shing-Tung Yau},
  url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191224203546838851051},
  booktitle={Applied optics},
  volume={46},
  number={1},
  pages={50-57},
  year={2007},
}
Song Zhang, Xiaolin Li, and Shing-Tung Yau. Multilevel quality-guided phase unwrapping algorithm for real-time three-dimensional shape reconstruction. 2007. Vol. 46. In Applied optics. pp.50-57. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191224203546838851051.
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