Multiple-wavelength-scanning-based phase unwrapping method for digital holographic microscopy.
Multiple-wavelength-scanning-based phase unwrapping method for digital holographic microscopy.
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DOI：
10.1364/ao.53.000979
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发表时间：
2014-02
期刊：
影响因子：
1.9
通讯作者：
Yan Li;Wen Xiao;Feng Pan
中科院分区：
文献类型：
--
作者：
Yan Li;Wen Xiao;Feng Pan
提出了一种基于多波长扫描的数字全息显微镜位相展开方法。它通过改变光学波长获得的一组多个相位图像中提取的连续分量来逐层解包模糊的相位图像，其中不连续出现在不同的位置，并且相位散斑噪声呈现不同的状态分布。对于10个波长，数据采集的总时间约为22分钟。仿真和实验结果表明，与以往报道的方法相比，该方法具有更高的计算精度和更好的抗相位噪声能力。此外，还成功地对包含这些步骤的物体的包裹位相图像进行了展开。
A phase unwrapping approach based on multiple-wavelength scanning is presented for digital holographic microscopy. It unwrapped the ambiguous phase image layer by layer by synthesizing the extracted continuous components from a set of multiple phase images obtained by varying the optical wavelength, where the discontinuities occur at different places and the phase speckle noise presents various distributions in state. The total time for data acquisition is approximately 22 min for 10 wavelengths. The simulation and experimental results demonstrate that the proposed method has a more accurate calculation and better counteraction of phase noise compared with those of previously reported approaches. In addition, the wrapped phase image of the object containing the steps has also been unwrapped successfully.