| Issue |
J. Eur. Opt. Soc.-Rapid Publ.
Volume 14, Number 1, 2018
|
|
|---|---|---|
| Article Number | 12 | |
| Number of page(s) | 10 | |
| DOI | https://doi.org/10.1186/s41476-018-0081-0 | |
| Published online | 23 April 2018 | |
Research
High-quality binary fringe patterns generation by combining optimization on global and local similarity
1
Faculty of Robot Science and Engineering, Northeastern University, Shenyang, China
2
Ophthalmology, General Hospital of Shenyang Military Region, Shenyang, China
Received:
2
January
2018
Accepted:
9
April
2018
Background: The recently proposed optimized dithering techniques can improve measurement quality. However, the objective function in these optimization methods just qualifies the global similarity of the pattern while the global optimization methods ignore the influences of local structure.
Method: In order to get high quality binary dithered patterns, this paper presents an algorithm which combines optimization on global and local similarity and implements it in the whole-fringe optimization.
Results: Both the simulation and experimental results demonstrate that the proposed algorithm can achieve binary fringe patterns with higher phase quality and less intensity difference. The fringe patterns based on the proposed method can get high quality measurement results.
Conclusion: The proposed method can get high quality binary dithered patterns under different defocusing levels by combining global similarity and local structure similarity. The proposed method can improve the robustness to the amounts of defocusing.
Key words: 3D measurement profilometry / Bianry defocusing / Dithering / Optimization
© The Author(s) 2018
Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
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