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    This study enhances super-resolution (SR) imaging by using a mismatched array with Barker-based arrays for improved decoding. This novel approach enables high-resolution 2D image reconstruction from 1D scans without physical contact.

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    Area of Science:

    • Optics and Photonics
    • Image Processing
    • Super-Resolution Imaging

    Background:

    • Conventional time multiplexing super-resolution (TMSR) utilizes Barker-based arrays for 2D SR imaging via 1D scans.
    • The auto-correlation property of Barker arrays is key to achieving super-resolution.

    Purpose of the Study:

    • To refine the TMSR technique by introducing a mismatched array for enhanced decoding.
    • To propose a non-contact projection method for array implementation using spatial light modulators.

    Main Methods:

    • Employed a mismatched array for decoding, leveraging its perfect peak-to-sidelobes ratio in cross-correlation with Barker arrays.
    • Utilized a phase-only spatial light modulator to project Barker-based arrays onto the object.
    • Designed 13 phase masks using a revised Gerchberg-Saxton algorithm for generating shifted Barker arrays.
    • Captured low-resolution images and decoded them with mismatched arrays to reconstruct a high-resolution image.

    Main Results:

    • Demonstrated successful high-resolution image reconstruction through laboratory experiments.
    • Validated the effectiveness of the mismatched array decoding strategy.
    • Showcased the feasibility of non-contact array projection for super-resolution imaging.

    Conclusions:

    • The refined TMSR technique with mismatched array decoding offers a robust method for super-resolution imaging.
    • Phase-only spatial light modulator projection provides a practical, non-contact alternative for array implementation.
    • The proposed method significantly advances 2D super-resolution imaging capabilities.