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Related Experiment Video

Updated: Mar 7, 2026

Scattering And Absorption of Light in Planetary Regoliths

Scattering And Absorption of Light in Planetary Regoliths

Published on: July 1, 2019

Imaging moving targets through scattering media.

Michelle Cua, Edward Haojiang Zhou, Changhuei Yang

|March 1, 2017

Summary

This summary is machine-generated.

Researchers developed a new method for imaging hidden objects in scattering media using speckle-correlation imaging (SCI). This technique works in bright-field scenarios, overcoming previous limitations for enhanced microscopy applications.

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Last Updated: Mar 7, 2026

Scattering And Absorption of Light in Planetary Regoliths

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Published on: July 1, 2019

Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform

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Published on: February 12, 2014

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Published on: February 8, 2014

Area of Science:

Optics and Photonics
Biomedical Imaging
Materials Science

Background:

Optical microscopy in scattering media is limited by multiply scattered light, reducing resolution and imaging depth.
Current speckle-correlation imaging (SCI) techniques are effective but restricted to dark-field imaging of sparsely tagged objects.

Purpose of the Study:

To extend SCI capabilities for imaging hidden, moving objects in bright-field scenarios.
To overcome the limitations of existing SCI methods in complex and inhomogeneous media.

Main Methods:

Utilized a deterministic phase modulator to create a spatially incoherent light source.
Developed a method to isolate object signals by subtracting constant background contributions between acquisitions.
Applied speckle-correlation principles to reconstruct images of hidden objects.

Main Results:

Successfully demonstrated imaging of hidden, moving objects in a bright-field setup.
Achieved high-fidelity reconstruction of object signals by effectively isolating them from background noise.
Extended SCI applicability beyond dark-field and sparsely tagged scenarios to include non-emitting objects.

Conclusions:

The developed technique significantly advances optical microscopy in scattering media, enabling robust imaging in challenging bright-field conditions.
This method broadens the scope of SCI applications, offering new possibilities for in-situ and in-vivo imaging in biological and material sciences.