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Angular phase unwrapping of optically thick objects with a thin dimension.

Gili Dardikman, Simcha Mirsky, Mor Habaza

|March 1, 2017

Summary

This summary is machine-generated.

This study introduces a novel phase unwrapping method for reconstructing optically thick objects. The technique enables quantitative phase imaging from previously inaccessible viewing angles, including biological cells.

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Area of Science:

Optical imaging
Biomedical optics
Phase contrast microscopy

Background:

Quantitative phase imaging (QPI) is crucial for analyzing transparent specimens.
Reconstructing optically thick objects presents challenges, especially from certain viewing angles.
Existing phase unwrapping methods struggle with thick or complex samples.

Purpose of the Study:

To develop a new phase unwrapping algorithm for reconstructing optically thick objects.
To enable quantitative phase imaging from viewing angles previously considered impossible.
To advance the imaging capabilities for biological samples.

Main Methods:

A novel approach combining 1-D angular phase unwrapping with 2-D spatial phase unwrapping.
Utilizing phase information from consecutive viewing angles.
Numerical simulations and experimental validation using biological cells.

Main Results:

Successful reconstruction of optically thick objects previously unimageable from certain angles.
Demonstration of quantitative phase imaging capabilities for biological cells.
Validation of the algorithm's effectiveness through simulations and experiments.

Conclusions:

The proposed phase unwrapping method significantly expands the possibilities of quantitative phase imaging.
This technique allows for comprehensive imaging of biological cells from multiple perspectives.
The approach overcomes limitations of conventional methods for optically thick samples.