Moment-based space-variant Shack-Hartmann wavefront reconstruction
Optics
2023-04-28 v1
Abstract
Based on image moment theory, an approach for space-variant Shack-Hartmann wavefront reconstruction is presented in this article. The relation between the moment of a pair of subimages and the local transformation coefficients is derived. The square guide 'star' is used to obtain a special solution from this relation. The moment-based wavefront reconstruction has a reduced computational complexity compared to the iteration-based algorithm. Image restorations are executed by the tiling strategy with 5 5 PSFs as well as the conventional strategy with a global average PSF. Visual and quantitative evaluations support our approach.
Cite
@article{arxiv.2304.06283,
title = {Moment-based space-variant Shack-Hartmann wavefront reconstruction},
author = {Fan Feng and Chen Liang and Dongdong Chen and Ke Du and Runjia Yang and Chang Lu and Shumin Chen and Wenting He and Pingyong Xu and Liangyi Chen and Louis Tao and Heng Mao},
journal= {arXiv preprint arXiv:2304.06283},
year = {2023}
}
Comments
This paper has been accepted for publication in the journal Optics Communications on April 12th, 2023