期刊
MEASUREMENT SCIENCE AND TECHNOLOGY
卷 30, 期 6, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1361-6501/ab0d64
关键词
fringe projection profilometry; phase-shifting algorithm; high dynamic range; 3D reconstruction; time domain superposition
资金
- National Natural Science Fund of China [61722506, 61705105, 111574152]
- National Key Technologies R&D Program of China [2017YFF0106403]
- Final Assembly '13th Five-Year Plan' Advanced Research Project of China [30102070102]
- Key Research and Development Program of Jiangsu Province, China [BE2017162]
- Outstanding Youth Foundation of Jiangsu Province of China [BK20170034]
- National Defense Science and Technology Foundation of China [0106173]
- 'Six Talent Peaks' project of Jiangsu Province, China [2015-DZXX-009]
- '333 Engineering' Research Project of Jiangsu Province, China [BRA2016407]
- Fundamental Research Funds for the Central Universities [30917011204, 30916011322, 30918014115-005]
- Open Research Fund in 2017 of Jiangsu Key Laboratory of Spectral Imaging & Intelligent Sense [3091601410414]
- China Postdoctoral Science Foundation [2017M621747]
- Jiangsu Planned Projects for Postdoctoral Research Funds [1701038A]
- Open Research Fund in 2018 of Jiangsu Key Laboratory of Spectral Imaging & Intelligent Sense [3091801410403]
Fringe projection is a widely used approach for 3D shape measurements. However, it is ineffective for scenarios with a wide range of reflectivity. In this paper, we propose a technique that can measure high-dynamic-range surfaces without changing camera exposure or projected light intensity. With the strategy of time domain superposition, we can use noisy fringe images to recover phase and geometric shapes accurately for low-reflection and high-reflection regions. The measurement accuracy of low-reflection regions obtained by the proposed method is about three times higher than that of the traditional phase-shifting method. Both simulations and experiments are performed to verify the proposed method.
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