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Color Crosstalk Correction in Linear Stokes Imaging Using a Color Polarization Camera with Simultaneous Three

Manal Altaweel¹, Judit Bisbal-Amat¹, Juan Campos¹

¹Group of Optics, Department of Physics, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain.

Sensors (Basel, Switzerland)

|June 26, 2026

Summary

This summary is machine-generated.

This study introduces a novel method to correct color crosstalk in polarimetric color cameras, enabling accurate recovery of chromatic and polarimetric data without assuming identical polarization states across wavelengths.

Keywords:

Stokes parameters optical polarization polarization cameras

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Area of Science:

* Optics and Photonics
* Computational Imaging

Background:

* Polarimetric color cameras capture both polarization and color information across RGB channels.
* Spectral overlap in commercial sensors causes color crosstalk, biasing Stokes parameter reconstruction.
* Existing crosstalk correction methods often assume wavelength-independent polarization states, which is not always valid.

Purpose of the Study:

* To develop a method for accurate polarimetric and chromatic information recovery from color polarization sensors.
* To address color crosstalk without the assumption of wavelength-independent polarization states.
* To validate the method using synthetic and experimental data.

Main Methods:

* Developed a novel crosstalk correction method for color polarization sensors.
* Applied Fourier domain demosaicking for data interpolation and image reconstruction.
* Utilized narrowband RGB illumination (470, 554, 630 nm) for testing.

Main Results:

* Demonstrated accurate recovery of chromatic and polarimetric information on synthetic and real-world datasets.
* Validated the method's feasibility for accurate three-channel polarization measurements.
* Showcased successful correction of color crosstalk without prior polarization state assumptions.

Conclusions:

* The proposed method effectively corrects color crosstalk in polarimetric color cameras.
* It enables accurate simultaneous measurement of chromatic and polarimetric data, even with wavelength-dependent sample properties.
* This advancement is crucial for applications requiring high-fidelity polarization and color imaging.