Abstract
A method is presented for the standardization of images acquired with fluorescence microscopy, based on the knowledge of spatial distributions proportional to the microscope's absolute excitation intensity and fluorescence detection efficiency distributions over the image field. These distributions are determined using a thin fluorescent test layer, employed under practically mono-exponential photobleaching conditions. It is demonstrated that these distributions can be used for (i) the quantitative evaluation of differences between both the excitation intensity and the fluorescence detection efficiency of different fluorescence microscopes and (ii) the standardization of images acquired with different microscopes, permitting the deduction of quantitative relationships between images obtained under different imaging conditions.
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