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Related Experiment Video

Updated: Jan 19, 2026

Patterned Photostimulation with Digital Micromirror Devices to Investigate Dendritic Integration Across Branch Points
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Imaging with SPADs and DMDs: Seeing through Diffraction-Photons.

Ibrahim Alsolami, Wolfgang Heidrich

    IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society
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    This study introduces a novel imaging technique to combat diffraction-photons, enhancing image quality in SPAD systems. The method jointly optimizes illumination and deconvolution for clearer intensity and depth imaging.

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    Area of Science:

    • Photonics
    • Image Processing
    • Optical Engineering

    Background:

    • Diffraction-photons degrade image quality in SPAD-based systems.
    • This issue stems from the low contrast ratio of Digital Micromirror Devices (DMDs).

    Purpose of the Study:

    • To develop a method for overcoming diffraction-photon noise in imaging.
    • To enable the acquisition of high-quality intensity and depth images.

    Main Methods:

    • A joint illumination-deconvolution scheme was designed.
    • A proof-of-concept experiment was conducted to validate the scheme.

    Main Results:

    • The joint scheme effectively mitigates diffraction-photon artifacts.
    • High-quality intensity and depth images were successfully acquired.

    Conclusions:

    • Co-designing illumination and deconvolution is crucial for overcoming diffraction-photons.
    • The proposed method significantly enhances imaging performance in challenging conditions.