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High-quality fringe pattern generation based on binary pattern optimization with projector defocusing
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Publication in Journal of Optical Technology
X.-X. Li, Z.-J. Zhang High-quality fringe pattern generation based on binary pattern optimization with projector defocusing (Высококачественная генерация полосовых шаблонов на основе оптимизации бинарных паттернов с дефокусировкой) [на англ. яз.] // Оптический журнал. 2017. Т. 84. № 1. С. 32–40.
X.-X. Li, Z.-J. Zhang High-quality fringe pattern generation based on binary pattern optimization with projector defocusing (Высококачественная генерация полосовых шаблонов на основе оптимизации бинарных паттернов с дефокусировкой) [in English] // Opticheskii Zhurnal. 2017. V. 84. № 1. P. 32–40.
X.-X. Li and Z.-J. Zhang, "High-quality fringe pattern generation based on binary pattern optimization with projector defocusing," Journal of Optical Technology. 84(1), 22-28 (2017). https://doi.org/10.1364/JOT.84.000022
The real-time three-dimensional reconstruction is increasingly important in many fields. However, it is a challenge for the conventional digital fringe projection technique. The binary defocusing technique applied to the digital fringe projection technique not only significantly improves the real-time performance but also fundamentally eliminates the nonlinearity of projector. In the existing techniques, the dithering techniques based on optimization are superior to the others. However, those optimization methods have two obvious drawbacks: the objective function just qualifies the global intensity similarity while ignores the local similarity, and the optimization framework is inefficient or timeconsuming. This paper first presents a novel objective function consisting of a global intensity term and a local structure term to comprehensively evaluate similarity. Second, a model optimization framework, which includes a hybrid optimization algorithm and a half period optimization idea, is employed. Both simulations and experimental results show the advantages of the proposed objective function and the optimization framework, as well as the improvement of quality and speed of 3D reconstruction.
3D reconstruction, digital fringe projection, binary dithering technique, BPSO-GA hybrid algorithm
OCIS codes: 230.0230, 120.2830
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