Angular phase unwrapping of optically thick objects with a thin dimension

Gili Dardikman, Simcha Mirsky, Mor Habaza, Yael Roichman, Natan T. Shaked

Research output: Contribution to journalArticlepeer-review


We present a new phase unwrapping approach, which allows reconstruction of optically thick objects that are optically thin from at least one viewing angle, by considering the information stored in the object phase maps captured from consecutive angles. Our algorithm combines 1-D phase unwrapping in the angular dimension with conventional 2-D phase unwrapping, to achieve unwrapping of the object from the optically thick perspective. We thus obtain quantitative phase imaging of objects that were previously impossible to image in certain viewing angles. To demonstrate our approach, we present both numerical simulation and experimental results for quantitative phase imaging of biological cells.

Original languageEnglish
Pages (from-to)3347-3357
Number of pages11
JournalOptics Express
Issue number4
StatePublished - 20 Feb 2017


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