Signal-to-noise analysis of various imaging systems

Peter J. Miller; Andrew Robert Harvey

doi:10.1117/12.432495

2 July 2001 Signal-to-noise analysis of various imaging systems

Peter J. Miller, Andrew Robert Harvey

Proceedings Volume 4259, Biomarkers and Biological Spectral Imaging; (2001) https://doi.org/10.1117/12.432495
Event: BiOS 2001 The International Symposium on Biomedical Optics, 2001, San Jose, CA, United States

Abstract

Recent papers comparing the relative signal to noise performance of filters and interferometers for visible and near-IR spectral imaging have reached divergent conclusions. Others have presented the proposition that interferometer systems, by capturing light from multiple spectral channels bands at once, inherently outperform filter-type systems, which capture a single channel at a time. In this paper, a general analysis is provided that establishes a basis for comparison between band-sequential spectrometers and imaging interferometers in the shot-noise limit (set by Poisson statistics of the number of electrons produced at the detector), and in practice. It is shown that factors such as lamp flicker and sample stability can introduce much more error than shot noise does. This, one must be aware that the use of shot-noise limited detectors does not ensure shot- noise limited images.

Citation Download Citation

Peter J. Miller and Andrew Robert Harvey "Signal-to-noise analysis of various imaging systems", Proc. SPIE 4259, Biomarkers and Biological Spectral Imaging, (2 July 2001); https://doi.org/10.1117/12.432495

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