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arXiv · 2506.06945

Quanta Diffusion

Prateek Chennuri·Dongdong Fu·Stanley H. Chan
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Abstract

We present Quanta Diffusion (QuDi), a powerful generative video reconstruction method for single-photon imaging. QuDi is an algorithm supporting the latest Quanta Image Sensors (QIS) and Single Photon Avalanche Diodes (SPADs) for extremely low-light imaging conditions. Compared to existing methods, QuDi overcomes the difficulties of simultaneously managing the motion and the strong shot noise. The core innovation of QuDi is to inject a physics-based forward model into the diffusion algorithm, while keeping the motion estimation in the loop. QuDi demonstrates an average of 2.4 dB PSNR improvement over the best existing methods.

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Prateek Chennuri, Dongdong Fu, Stanley H. Chan. 2025-06-07. Quanta Diffusion. https://doi.org/10.1109/icip55913.2025.11084414

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