Hyper ellipse fitting in subspace method for phase-shifting interferometry: Practical implementation with automatic pixel selection

Kohei Yatabe*, Kenji Ishikawa, Yasuhiro Oikawa

*この研究の対応する著者

研究成果: Article査読

27 被引用数 (Scopus)

抄録

This paper presents a method of significantly improving the previously proposed simple, flexible, and accurate phase retrieval algorithm for the random phase-shifting interferometry named HEFS [K. Yatabe, J. Opt. Soc. Am. A 34, 87 (2017)]. Although its e ectiveness and performance were confirmed by numerical experiments in the original paper, it is found that the algorithm may not work properly if observed fringe images contains untrusted (extremely noisy) pixels. In this paper, a method of avoiding such untrusted pixels within the estimation processes of HEFS is proposed for the practical use of the algorithm. In addition to the proposal, an experiment of measuring a sound field in air was conducted to show the performance for real data, where the proposed improvement is critical for that situation. MATLAB codes (which can be downloaded from http://goo.gl/upcsFe) are provided within the paper to aid understanding the main concept of the proposed methods.

本文言語English
ページ(範囲)29401-29416
ページ数16
ジャーナルOptics Express
25
23
DOI
出版ステータスPublished - 2017 11 13

ASJC Scopus subject areas

  • 原子分子物理学および光学

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