中国物理B ›› 2019, Vol. 28 ›› Issue (8): 84202-084202.doi: 10.1088/1674-1056/28/8/084202
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
Ning Cai(蔡宁), Zhe-Bo Chen(陈浙泊), Xiang-Qun Cao(曹向群), Bin Lin(林斌)
Ning Cai(蔡宁)1,2, Zhe-Bo Chen(陈浙泊)2, Xiang-Qun Cao(曹向群)1, Bin Lin(林斌)1,2
摘要: On the basis of the objective functions, dithering optimization techniques can be divided into the intensity-based optimization technique and the phase-based optimization technique. However, both types of techniques are spatial-domain optimization techniques, while their measurement performances are essentially determined by the harmonic components in the frequency domain. In this paper, a novel genetic optimization technique in the frequency domain is proposed for high-quality fringe generation. In addition, to handle the time-consuming difficulty of genetic algorithm (GA), we first optimize a binary patch, then join the optimal binary patches together according to periodicity and symmetry so as to generate a full-size pattern. It is verified that the proposed technique can significantly enhance the measured performance and ensure the robustness to various amounts of defocusing.
中图分类号: (Imaging and optical processing)