Digital holographic microscopy (DHM), provides an extremely sensitive quantitative-phase signal (QPS), which is nevertheless affected by coherent noise. The recent development of polychromatic DHM (P-DHM) enables us to provide quasi-coherent-noise-free quantitative-phase images. The implementation of P-DHM remains, however, demanding. We propose a convolutional neural network architecture, using for the first time an experimental ground-truth dataset, performing the P-DHM denoising from conventional DHM images. The results highlight, a strong efficiency, fine subcellular structures are made visible without loss of QPS accuracy, an interest in comparison to state-of-the-art learning methods and the possibility of a more widespread use of the P-DHM.
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