Science· 2013Q1
First-Photon Imaging
- 474citations
- Q1SCImago
- 2013year
Short summary
First-photon imaging recovers 3D structure and reflectivity from just the first detected photon per pixel, overcoming the need for hundreds of photons previously required to reduce noise.
AI-generated from the title and abstract; the full text is not read.
Key points
- First-photon imaging recovers 3D structure and reflectivity using only the first detected photon per pixel.
- This technique overcomes the noise limitations of low-flux imaging, which previously required hundreds of photons per pixel.
- It exploits spatial correlations in scenes and the physics of low-flux measurements.
- Demonstrates simultaneous acquisition of sub-pulse duration range and 4-bit reflectivity in high background noise.
AI-generated from the title and abstract; the full text is not read.
Abstract
Imagers that use their own illumination can capture three-dimensional (3D) structure and reflectivity information. With photon-counting detectors, images can be acquired at extremely low photon fluxes. To suppress the Poisson noise inherent in low-flux operation, such imagers typically require hundreds of detected photons per pixel for accurate range and reflectivity determination. We introduce a low-flux imaging technique, called first-photon imaging, which is a computational imager that exploits spatial correlations found in real-world scenes and the physics of low-flux measurements. Our technique recovers 3D structure and reflectivity from the first detected photon at each pixel. We demonstrate simultaneous acquisition of sub-pulse duration range and 4-bit reflectivity information in the presence of high background noise. First-photon imaging may be of considerable value to both microscopy and remote sensing.
The authors' abstract, as published at the source. Science, 2013 · DOI ↗
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Field: Instrumentation
InstrumentationPhysics and Astronomy