Journal of the Optical Society of America A· 2012Q2
Computational ghost imaging for remote sensing
- 244citations
- Q2SCImago
- 2012year
Short summary
Computational ghost imaging can reconstruct a target object's spatial Fourier transform, enabling remote sensing with a single-pixel detector, even under atmospheric turbulence.
AI-generated from the title and abstract; the full text is not read.
Key points
- Computational ghost imaging reconstructs the 2D spatial Fourier transform of a target using a single-pixel detector.
- The system's performance (resolution, SNR) is analyzed under atmospheric turbulence and background radiation.
- Short-exposure intensity averaging can mitigate resolution loss caused by atmospheric turbulence.
- The analysis highlights performance differences and potential advantages of computational ghost imaging over conventional active imaging.
AI-generated from the title and abstract; the full text is not read.
Abstract
Computational ghost imaging is a structured-illumination active imager coupled with a single-pixel detector that has potential applications in remote sensing. Here we report on an architecture that acquires the two-dimensional spatial Fourier transform of the target object (which can be inverted to obtain a conventional image). We determine its image signature, resolution, and signal-to-noise ratio in the presence of practical constraints such as atmospheric turbulence, background radiation, and photodetector noise. We consider a bistatic imaging geometry and quantify the resolution impact of nonuniform Kolmogorov-spectrum turbulence along the propagation paths. We show that, in some cases, short-exposure intensity averaging can mitigate atmospheric-turbulence-induced resolution loss. Our analysis reveals some key performance differences between computational ghost imaging and conventional active imaging, and identifies scenarios in which theory predicts that the former will perform better than the latter.
The authors' abstract, as published at the source. Journal of the Optical Society of America A, 2012 · DOI ↗
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Field: Acoustics and Ultrasonics
Acoustics and UltrasonicsPhysics and Astronomy