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Compressive imaging through a multimode fiber.

Lyubov V Amitonova, Johannes F de Boer

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    Summary
    This summary is machine-generated.

    We introduce compressive multimode (MM) fiber imaging, a novel endo-microscopy technique. This method uses MM fiber speckle patterns for efficient compressive sensing, reducing measurements by 20x for high-resolution imaging.

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    Area of Science:

    • Optics and Photonics
    • Biomedical Imaging
    • Materials Science

    Background:

    • Endo-microscopy enables in-vivo imaging but faces limitations in resolution and speed.
    • Standard raster scanning approaches require a high number of measurements, limiting imaging speed.
    • Multimode (MM) fibers generate complex speckle patterns that can be exploited for advanced imaging.

    Purpose of the Study:

    • To introduce and demonstrate a novel endo-microscopy technique using compressive sensing with MM fibers.
    • To show that MM fiber speckle patterns are suitable for compressive sensing.
    • To overcome limitations of current endo-microscopy methods in terms of measurement requirements and imaging speed.

    Main Methods:

    • Development and experimental validation of compressive multimode (MM) fiber imaging.
    • Utilizing speckle patterns generated within MM fibers as a basis for compressive sensing.
    • Comparison of measurement requirements with standard raster scanning endo-microscopy.

    Main Results:

    • Demonstrated high-resolution compressive imaging through a fiber probe.
    • Achieved imaging with 20 times fewer measurements compared to standard raster scanning.
    • Showcased the capability of MM fiber's optical sectioning for imaging bulk structures.

    Conclusions:

    • Compressive MM fiber imaging offers a new paradigm for endo-microscopy.
    • The technique significantly reduces measurement overhead and increases imaging speed.
    • It avoids complex wavefront shaping, simplifying the endo-microscopy process.