Complex-amplitude-based phase unwrapping method for digital holographic microscopy |
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Authors: | Shuo Liu Wen XiaoFeng Pan Fanjing WangLin Cong |
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Institution: | School of Instrument Science and Optoelectronics Engineering, Beihang University, Beijing 100191, China |
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Abstract: | A complex-amplitude-based phase unwrapping approach for digital holographic microscopy is proposed in this paper. A quality map is derived directly from the reconstructed complex amplitude distribution of object wave to evaluate noise influence and phase reliability in the wrapped phase image. Quality-guided phase unwrapping algorithm is then implemented with the quality map to retrieve continuous phase profile. Unwrapping errors caused by unreliable phase data are successfully suppressed. The effectiveness of this method is demonstrated with simulation and experimental results. |
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Keywords: | Phase unwrapping Digital holographic microscopy Quality map |
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