Noninvasive imaging of two isolated objects through a thin scattering medium beyond the 3D optical memory effect by...

Area of Science:

• Optical imaging
• Scattering media physics

Background:

• Imaging objects through scattering media is challenging.
• Traditional methods struggle with dynamic or closely spaced objects.

Purpose of the Study:

• To develop a method for retrieving the shapes of two objects behind scattering media.
• To image both stationary and moving objects simultaneously.

Main Methods:

• Utilized a speckle-differential-based strategy.
• Employed traditional speckle autocorrelation technique.
• Captured two speckle patterns for object reconstruction.

Main Results:

• Successfully retrieved the shapes of two isolated objects.
• Demonstrated imaging of one stationary and one moving object.
• Validated performance beyond the 3D optical memory effect range.

Conclusions:

• The developed speckle-differential strategy is feasible for imaging through scattering media.
• The method enables shape retrieval of multiple objects, even under motion.
• Theoretical analysis and experimental results confirm the method's effectiveness.