Paper ID: 2203.15413

Deep Reinforcement Learning for Data-Driven Adaptive Scanning in Ptychography

Marcel Schloz, Johannes Müller, Thomas C. Pekin, Wouter Van den Broek, Christoph T. Koch

We present a method that lowers the dose required for a ptychographic reconstruction by adaptively scanning the specimen, thereby providing the required spatial information redundancy in the regions of highest importance. The proposed method is built upon a deep learning model that is trained by reinforcement learning (RL), using prior knowledge of the specimen structure from training data sets. We show that equivalent low-dose experiments using adaptive scanning outperform conventional ptychography experiments in terms of reconstruction resolution.

Submitted: Mar 29, 2022