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. 2017 Feb 28;8(3):1981–1995. doi: 10.1364/BOE.8.001981

Fig. 2.

Fig. 2

Phase retrieval algorithm for on-chip holography. Each step is detailed in the text. Subsampling (SPR) only modifies the constraint in step 3. This modification results in over an order of magnitude potential speedup for lensless holographic video.