This is a tool to analyze Fluorescence Lifetime Imaging Microscopy (FLIM) data. See https://en.wikipedia.org/wiki/Fluorescence-lifetime_imaging_microscopy for an introduction on the technique.
It supports Quadrant-Anode (QA) data, recorded using Europhoton's detector, as well as PicoQuant's pt3 format. ASCII data can be read as well.
The fitting of the fluorescence lifetime is done using Poissonian Maximum- Likelihood-Estimation (MLE) according to:
Ted A Laurence & Brett A Chromy, Efficient maximum likelihood estimator fitting of histograms, Nature Methods 7, 338–339 (1 May 2010) | doi:10.1038/nmeth0510-338
See https://github.com/mattarroz/flimanalysis/wiki for more information.