Adaptive decorrelation compensation approach in digital-image-correlation-assisted phase-sensitive optical coherence tomography.

IF 3.1 2区 物理与天体物理 Q2 OPTICS Optics letters Pub Date : 2024-12-15 DOI:10.1364/OL.546500
Bo Dong, Yulei Bai, Zhaoshui He, Shengli Xie
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Abstract

This work demonstrates that the phase-based decorrelation compensation method outperforms the amplitude-based approach in low signal-to-noise ratio (SNR) regions of phase-sensitive optical coherence tomography (PhS-OCT). Building on this finding, an adaptive decorrelation compensation approach for digital-image-correlation (DIC)-assisted PhS-OCT is introduced. This method utilizes the maximum correlation coefficient from amplitude maps to adaptively determine the need for secondary tracking of decorrelated displacement using the phase-based approach. It significantly improves decorrelation compensation quality while minimizing impacts on computational efficiency. A tensile testing experiment was conducted to validate the method, with results showing that the proposed adaptive compensation method enables previously unmeasurable low SNR regions to become measurable by adaptively retracking only 21.7% of the area.

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数字图像相关性辅助相敏光学相干断层成像中的自适应相关性补偿方法。
本研究表明,在相敏光学相干层析成像(PhS-OCT)的低信噪比(SNR)区域,基于相位的去相关补偿方法优于基于幅度的方法。在此基础上,介绍了一种用于数字图像相关(DIC)辅助的物理- oct的自适应去相关补偿方法。该方法利用振幅图的最大相关系数自适应地确定是否需要使用基于相位的方法对去相关位移进行二次跟踪。它显著提高了去相关补偿质量,同时最大限度地降低了对计算效率的影响。为了验证该方法的有效性,进行了拉伸测试实验,结果表明,所提出的自适应补偿方法仅通过自适应重新跟踪21.7%的低信噪比区域,就可以使以前不可测量的低信噪比区域变得可测量。
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来源期刊
Optics letters
Optics letters 物理-光学
CiteScore
6.60
自引率
8.30%
发文量
2275
审稿时长
1.7 months
期刊介绍: The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community. Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.
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