Method and apparatus for measuring multiple optical...

Details Method and apparatus for measuring multiple optical... Method and apparatus for measuring multiple optical...

G - Physics

01

N

354/21, 73/0.5

G01N 15/00 (2006.01) G01N 15/14 (2006.01) G06K 9/00 (2006.01)

Patent

CA 2026617

The invention relates to an apparatus and methods for generating multiparameter optical data that characterize a population of cells. The invention includes the steps of scanning the cell population with a beam to produce sets of digital data samples, each sample set of digital data representing multiparameter optical interactions from a specific location within the cell population; storing the digital data, e.g., in a computer memory; locating a cell within the population, e.g., by comparing the digital data to a preselected threshold value; defining a neighborhood around the digital data representing the located cell; estimating a background level for the neighborhood based upon digital data corresponding to locations outside the neighborhood; and correcting each of the samples corresponding to the neighborhood with the estimated neighborhood background level to generate the optical data. The invention further relates to specific methods of background correction and data calibration as well as specific sampling features to enable precise estimates of multiple cellular constituents or other cell properties at high rates of speed.

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