Fast non-negative temporal deconvolution for laser scanning microscopy

Authors

  • Kaspar Podgorski,

    1. Department of Cellular and Physiological Sciences and the Brain Research Centre, University of British Columbia, 2211 Wesbrook Mall, Vancouver, BC, V6T2B5, Canada
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  • Kurt Haas

    Corresponding author
    1. Department of Cellular and Physiological Sciences and the Brain Research Centre, University of British Columbia, 2211 Wesbrook Mall, Vancouver, BC, V6T2B5, Canada
    • Phone: 604-822-9770, Fax: 604-822-7299
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Abstract

Laser scanning microscopy (LSM) is a common technique for high resolution fluorescent imaging. Here we describe a fast algorithm for non-negative deconvolution and apply it to readout of LSM detector photocurrents. By broadening photon impulses and deconvolving sampled photocurrent, effective quantum efficiency of the imaging system is increased. Using simulation and imaging with a custom-built two-photon microscope, we demonstrate improved fidelity of images acquired at short dwell times over a wide range of photon rates. Images formed show increased correlation-to-sample equivalent to a 25% increase in photon rate, lower noise, and reduced bleed-through compared to conventional image generation. (© 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

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