Pre-training diffractive optical networks on millions of simple images followed by fine-tuning enables all-optical denoising that raises PSNR from below 8 dB to above 18 dB across diverse datasets including MNIST, ChestMNIST, CIFAR-10 and CelebA.
Nature Photonics15(5), 367–373 (2021)
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Pre-training Enables Extraordinary All-optical Image Denoising
Pre-training diffractive optical networks on millions of simple images followed by fine-tuning enables all-optical denoising that raises PSNR from below 8 dB to above 18 dB across diverse datasets including MNIST, ChestMNIST, CIFAR-10 and CelebA.