Fringe pattern analysis based on the two-dimensional synchrosqueezing transform

被引：0

作者：

Kusano, Tsubasa ^{[1
]}

Yatabe, Kohei ^{[2
]}

Oikawa, Yasuhiro ^{[1
]}

机构：

[1] Waseda Univ, Dept Intermedia Art & Sci, 3-4-1 Ohkubo,Shinjuku Ku, Tokyo 1698555, Japan

[2] Tokyo Univ Agr & Technol, Dept Elect Engn & Comp Sci, 2-24-16 Naka Cho, Tokyo 1848588, Japan

来源：

OPTICS LETTERS | 2024年 / 49卷 / 14期

基金：

日本学术振兴会;

关键词：

WINDOWED FOURIER-TRANSFORM; PROFILOMETRY;

D O I：

10.1364/OL.530258

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Windowed Fourier transform (WFT) is used to analyze fringe patterns observed from optical measurements. The space-frequency resolution of the WFT is limited, which affects the analyzing performance. In this Letter, we propose to apply the two-dimensional synchrosqueezing transform (SST) for analyzing fringe patterns. The SST is a technique used to overcome the limitation of the space-frequency resolution of the WFT, which sharpens the WFT representation using the derivative of the WFT phase. Numerical experiments confirm the effectiveness of the SST in denoising the fringe pattern and estimating the local frequency from the observed fringe pattern. (c) 2024 Optica Publishing Group. All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.

引用

页码：4022 / 4025

页数：4

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