Time-lapse image classification using a diffractive optical network
Md Sadman Sakib Rahman, Aydogan Özcan · 2023
We present a time-lapse approach for image classification that significantly improves the inference of a standalone diffractive optical network. This approach utilizes the information diversity derived from controlled or random lateral displacements of the objects relative to a diffractive optical network, over a finite integration time at the image sensor, to enhance its generalization and statistical inference performance. By employing this time-lapse training and inference, we achieved a numerical blind testing accuracy of 62.03% on grayscale CIFAR-10 images, which represents the highest classification accuracy for this dataset achieved so far using a single diffractive network.