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    This study introduces a simplified optical scanning imaging system using a rotating single cylindrical lens (RSCL) to reconstruct sample amplitude and phase. A two-step Radon transform (TsRT) precisely determines the lens rotation angle for accurate light field reconstruction.

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    Area of Science:

    • Optical imaging
    • Computational imaging
    • Phase retrieval

    Background:

    • Longitudinal sampling rate fluctuation is a challenge in axial multi-image computational imaging.
    • Accurate reconstruction of amplitude and phase information requires precise control of imaging parameters.

    Purpose of the Study:

    • To propose an effortless and high-efficient optical scanning imaging system for reconstructing sample amplitude and phase.
    • To address the challenge of longitudinal sampling rate fluctuation in computational imaging.

    Main Methods:

    • A novel optical scanning imaging system utilizing the rotation of a single cylindrical lens (RSCL) is developed.
    • A non-axial-symmetry phase modulator (cylindrical lens) generates diffracted intensity patterns.
    • A two-step Radon transform (TsRT) is employed to determine the precise rotation angle of the cylindrical lens.

    Main Results:

    • The RSCL system simplifies the experimental setup for scanning imaging.
    • Accurate rotation status of the cylindrical lens is obtained using TsRT.
    • The system enables perfect reconstruction of the light field by controlling the rotation angle.

    Conclusions:

    • The proposed RSCL system offers a simplified and efficient approach for amplitude and phase reconstruction in computational imaging.
    • The TsRT method provides accurate determination of the cylindrical lens rotation angle, crucial for high-fidelity light field reconstruction.