中国物理B ›› 2019, Vol. 28 ›› Issue (10): 104210-104210.doi: 10.1088/1674-1056/ab427b

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Multi-objective strategy to optimize dithering technique for high-quality three-dimensional shape measurement

Ning Cai(蔡宁), Zhe-Bo Chen(陈浙泊), Xiang-Qun Cao(曹向群), Bin Lin(林斌)   

  1. 1 State Key Laboratory of Modern Optical Instrumentation, CNERC for Optical Instruments, Zhejiang University, Hangzhou 310027, China;
    2 Research Institute of Zhejiang University-Taizhou, Taizhou 318000, China
  • 收稿日期:2019-07-11 修回日期:2019-07-17 出版日期:2019-10-05 发布日期:2019-10-05
  • 通讯作者: Bin Lin E-mail:wjlin@zju.edu.cn
  • 基金资助:
    Project supported by the Zhejiang Provincial Welfare Technology Applied Research Project, China (Grant No. 2017C31080).

Multi-objective strategy to optimize dithering technique for high-quality three-dimensional shape measurement

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   

  1. 1 State Key Laboratory of Modern Optical Instrumentation, CNERC for Optical Instruments, Zhejiang University, Hangzhou 310027, China;
    2 Research Institute of Zhejiang University-Taizhou, Taizhou 318000, China
  • Received:2019-07-11 Revised:2019-07-17 Online:2019-10-05 Published:2019-10-05
  • Contact: Bin Lin E-mail:wjlin@zju.edu.cn
  • Supported by:
    Project supported by the Zhejiang Provincial Welfare Technology Applied Research Project, China (Grant No. 2017C31080).

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摘要： Dithering optimization techniques can be divided into the phase-optimized technique and the intensity-optimized technique. The problem with the former is the poor sensitivity to various defocusing amounts, and the problem with the latter is that it cannot enhance phase quality directly nor efficiently. In this paper, we present a multi-objective optimization framework for three-dimensional (3D) measurement by utilizing binary defocusing technique. Moreover, a binary patch optimization technique is used to solve the time-consuming issue of genetic algorithm. It is demonstrated that the presented technique consistently obtains significant phase performance improvement under various defocusing amounts.

关键词: three-dimensional (3D) shape measurement, multi-objective, dithering, genetic algorithm

Abstract: Dithering optimization techniques can be divided into the phase-optimized technique and the intensity-optimized technique. The problem with the former is the poor sensitivity to various defocusing amounts, and the problem with the latter is that it cannot enhance phase quality directly nor efficiently. In this paper, we present a multi-objective optimization framework for three-dimensional (3D) measurement by utilizing binary defocusing technique. Moreover, a binary patch optimization technique is used to solve the time-consuming issue of genetic algorithm. It is demonstrated that the presented technique consistently obtains significant phase performance improvement under various defocusing amounts.

Key words: three-dimensional (3D) shape measurement, multi-objective, dithering, genetic algorithm

中图分类号:  (Imaging and optical processing)

  • 42.30.-d
42.62.Eh (Metrological applications; optical frequency synthesizers for precision spectroscopy) 06.30.Ft (Time and frequency) 42.30.Rx (Phase retrieval)