A B-spline based fast wavefront reconstruction algorithm

Chen Hao; Wei Ling; Li Ende; He Yi; Yang Jinsheng; Li Xiqi; Fan Xinlong; Yang Zeping; Zhang Yudong

doi:10.12086/oee.2021.200160

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Feb 2021

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JOURNAL OF MECHANICAL ENGINEERING > 2021 > 48(2): 200160.

Chen Hao, Wei Ling, Li Ende, He Yi, Yang Jinsheng, Li Xiqi, Fan Xinlong, Yang Zeping, Zhang Yudong. A B-spline based fast wavefront reconstruction algorithm[J]. JOURNAL OF MECHANICAL ENGINEERING, 2021, 48(2): 200160. doi: 10.12086/oee.2021.200160

Citation:

Chen Hao, Wei Ling, Li Ende, He Yi, Yang Jinsheng, Li Xiqi, Fan Xinlong, Yang Zeping, Zhang Yudong. A B-spline based fast wavefront reconstruction algorithm[J]. JOURNAL OF MECHANICAL ENGINEERING, 2021, 48(2): 200160. doi: 10.12086/oee.2021.200160

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A B-spline based fast wavefront reconstruction algorithm

doi: 10.12086/oee.2021.200160

Chen Hao^{1, 2
,
,},
Wei Ling^{1, 2},
Li Ende^{1, 2},
He Yi^{3, 4},
Yang Jinsheng¹,
Li Xiqi^{1, 2},
Fan Xinlong¹,
Yang Zeping¹,
Zhang Yudong^{1, 2}

Funds:

National Natural Science Foundation of China 61605210

National Natural Science Foundation of China 61675226

National Natural Science Foundation of China 61378090

the National Instrumentation Program 2012YQ120080

the National Key Research and Development Program of China 2016YFC0102500

the National Key Research and Development Program of China 2017YFB0403700

More Information

Corresponding author: Chen Hao, E-mail: chenhao114@mails.ucas.ac.cn
Received Date: 11 May 2020
Rev Recd Date: 26 Aug 2020

Abstract

Abstract

Traditional schemes for Shack-Hartmann wavefront reconstruction can be classified into zonal and modal methods. The zonal methods are good at reconstructing the local details of the wavefront, but are sensitive to the noise in the slope data. The modal methods are much more robust to the noise, but they have limited capability of recovering the local details of the wavefront. In this paper, a B-spline based fast wavefront reconstruction algorithm in which the wavefront is expanded to the linear combination of bi-variable B-spline curved surfaces is proposed. Then, a method based on successive over relaxation (SOR) algorithm is proposed to fast reconstruct the wavefront. Experimental results show that the proposed algorithm can recover the local details of the wavefront as good as the zonal methods, while is much more robust to the slope noise.
- B-spline function,
- wavefront reconstruction,
- Hartmann wavefront sensor

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References(23)

References

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A B-spline based fast wavefront reconstruction algorithm

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