KEYWORDS: Image restoration, Tissues, Signal to noise ratio, In vivo imaging, Biopsy, Two photon imaging, Microscopy, Luminescence, Imaging systems, Image quality
High signal-to-noise ratio (SNR) images are necessary for analyzing sub-cellular features in biomedical images. Acquisition of such images may be limited by temporal or photon-budget-based imaging constraints. This study aims to use deep-learning-based image restoration methods to extract morpho-functional information from low-SNR, depth-resolved, label-free, two-photon images of human cervical tissue. A deep convolutional autoencoder model was trained using single-frame image inputs and multiple-frame averaged ground-truth image pairs. Automated analysis of restored reduced nicotinamide adenine dinucleotide (NADH) and flavin adenine dinucleotide (FAD) two-photon excitation fluorescence (TPEF) images extracts depth-dependent, morpho-functional information otherwise lost in single-frame images.
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