One Photon, Many Worlds: Posteriors and Predictions with Single-Photon Cameras
Single-photon avalanche diode (SPAD) cameras operate fundamentally differently from conventional cameras due to their photon-counting nature. Each frame produces a binary image: pixels report zero if no photons arrived during exposure, and one if one or more photons arrived. Reconstructing a scene or inferring its properties from a single binary frame is difficult because many different images could produce the same measurement; thus, the inverse problem is fundamentally one-to-many. As we gather more binary measurements, the inherent uncertainty associated with the inverse problem and any associated inference diminishes. With sufficient photon counts, photon noise becomes negligible rela...
| Authors | Haejoon Lee, Mohit Gupta, Vijayakumar Bhagavatula et al. |
|---|---|
| Primary category | eess.IV |
| Published | 2 October 2026 |
| Last updated at source | 2 October 2026 |
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