A new phase error compensation method in digital holographic microscopy
A new phase error compensation method in digital holographic microscopy
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DOI：
10.1117/12.2076855
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发表时间：
2015-03
期刊：
影响因子：
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通讯作者：
Zhaomin Wang;Weijuan Qu;Yongfu Wen;Fang Yang;A. Asundi
中科院分区：
文献类型：
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作者：
Zhaomin Wang;Weijuan Qu;Yongfu Wen;Fang Yang;A. Asundi
本文提出了一种在数字全息显微术中记录单个数字全息图来补偿相位像差和像畸变的新方法。在我们的方法中，倾斜是从畸变相位图第一。然后利用泛洪填充算法生成感兴趣区域（AOI）。通过离散正交泽尼克多项式拟合AOI，得到了一系列泽尼克多项式形式的误差相位图。通过从畸变相位图中减去误差相位图可以计算最终结果。将该方法应用于微透镜测试中，可以很好地抑制显微物镜引入的相位像差和像畸变。
In this paper we present a new method to compensate for phase aberrations and image distortion with recording single digital hologram in digital holographic microscopy. In our method, tilt is removed from the abberrated phase map first. Then an area of interest (AOI) is generated by flood filled algorithm. By fitting AOI with discrete orthogonal Zernike polynomials, error phase map in the form of a series of Zernike polynomials is obtained. Final result can be calculated by subtracting the error phase map from the abberrated phase map. Through applying our method in microlens testing, phase aberrations and image distortion introduced by microscope objective are well suppressed.