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Instrument-matrix based full-Stokes parameter direct retrieval for snapshot imaging polarimeter.

Feiya Ma, Xiangyuan Jiang, Shangheng Wei

    Optics Express
    |December 19, 2025
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces a new method for snapshot polarimetric imaging, directly retrieving full-Stokes parameters using an instrument matrix for calibration. This simplifies polarization calibration, improving accuracy in optic vision applications.

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    Area of Science:

    • Optics and Photonics
    • Image Processing
    • Metrology

    Background:

    • Full-Stokes parameters offer detailed target polarization information crucial for polarimetric imaging in optic vision.
    • Accurate retrieval of full-Stokes parameters is challenging due to complex polarization calibration requirements.

    Purpose of the Study:

    • To propose a novel method for directly retrieving full-Stokes parameters in snapshot polarimetric imaging.
    • To simplify and enhance the accuracy of polarization calibration for imaging polarimeters.

    Main Methods:

    • A novel method using an instrument matrix for direct full-Stokes parameter retrieval in snapshot polarimetric imaging.
    • Generating known Stokes vectors to modulate the polarimeter, capturing intensity vectors, and solving an optimization problem to derive the instrument matrix.
    • Directly retrieving scene full-Stokes parameters by multiplying the instrument matrix with intensity vectors from each snapshot.

    Main Results:

    • The proposed method effectively retrieves full-Stokes parameters for snapshot polarimetric imaging.
    • Experimental validation using a division-of-aperture polarization camera demonstrated high accuracy, with a maximum absolute error <= 0.031.
    • Achieved an order of magnitude reduction in root mean square error compared to existing methods.

    Conclusions:

    • The novel instrument matrix method offers a direct and accurate approach for polarization calibration in snapshot polarimetric imaging.
    • This technique significantly improves the efficiency and precision of full-Stokes parameter retrieval, benefiting various optic vision applications.