期刊
OPTICS AND LASERS IN ENGINEERING
卷 107, 期 -, 页码 28-37出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.optlaseng.2018.03.003
关键词
Phase unwrapping; 3D shape measurement; Structured light; Fringe projection; Absolute phase
类别
资金
- National Science Foundation (NSF) [1263236, 0968895, 1102301]
This paper provides a review for absolute phase recovery methods that are applicable for digital fringe projection (DFP) systems. Specifically, we present two conventional absolute phase unwrapping methods: multi-frequency or-wavelength phase-shifting methods, and hybrid binary coding and phase-shifting methods; and also introduce some non-conventional methods that are specific for DFP systems: multiview geometry methods with additional camera(s) or projector(s), DFP system geometric constraint-based phase unwrapping method, and pre-knowledge (e.g., computer-aided-design, CAD, model) based phase unwrapping method. This paper also briefly overviews hybrid methods including phase coding, composite, and pre-defined markers based absolute phase unwrapping methods. This paper explains the principle behind each individual absolute phase unwrapping method; and finally offers some practical tips to handle common phase unwrapping artifact issues. (C) 2018 Elsevier Ltd. All rights reserved.
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