Patent ID: 8664616

Claim:
A controller-implemented method of count correction for pixels of an energy discriminating pixilated photon counting detector, the method comprising: (a) storing in the controller a count value desired to be output by each of a plurality of pixels of a pixilated photon counting detector in response to exposure of each pixel thereof to the same photon flux density over a sample period of time; (b) in response to exposure of each pixel of the plurality of pixels to photon flux during the sample period of time, the controller: (b1) determining an actual average count value output by, the pixel; (b2) dividing the desired count value in step (a) by the actual average count value of the pixel determined in step (b1) to obtain a quotient therefore; (b3) determining for the pixel a multiplying correction factor equal to a square root of the quotient determined in step (b2); (b4) determining a product of the multiplying correction factor and the actual average count value; (b5) determining for the pixel an additive correction factor equal to the product determined in step (b4) subtracted from the desired average count value; and (b6) summing the additive correction factor to the product of the multiplying correction factor and the actual average count value to obtain a corrected count value for the pixel; and (c) the controller causing the corrected count values to be displayed as a color on a display.