Geometrical projection identity-based 3D reconstruction for fringe projection profilometry
This Letter reveals two special geometric points and a geometric projection identity (GPI) within an FPP system, thereby providing new 3D reconstruction equations for four common methods (Ver3, Hor3, OptE3, and HorVer4). We prove that the GPI-based and the traditional reconstruction frameworks are equivalent, but the former enables much faster point cloud computation and effective analysis of precision for metrology.
Authors
- N. K. Huang (ORCID: https://orcid.org/0000-0002-3844-1341)
- Chuanhui Liu
- Qian Kemao (ORCID: https://orcid.org/0000-0001-6988-3321)
- Yanlin Zou (ORCID: https://orcid.org/0000-0002-4131-4757)
- Yongyao Su (ORCID: https://orcid.org/0000-0001-6259-9985)
- Shu-Qing Lv
Institutions
- Nanyang Technological University (SG)
- Anhui Medical University (CN)
Publication Details
- Journal
- Optics Letters
- Published
- 2025-09-12
- DOI
- https://doi.org/10.1364/ol.570034
- Citations
- 1
- Primary Topic
- Optical measurement and interference techniques
- Type
- article
- Field-Weighted Citation Impact
- 1.28