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Experimental reconstruction of a USAF target, where the number of resolved pixels is increased by a factor of 25. We test two different ptychography algorithms: (a) AP and (b) LRP. Here we only show reconstructed intensity. LRP avoids artifacts (e.g., boxed in green) commonly encountered in the AP approach. Cited variances are measured in blue boxes (top). (c) Same cropped region of one low-resolution raw image, for comparison.
