Patent ID: 8670062

Claim:
A method of correcting noise included in an image acquired by a flat-panel-detector having a matrix-type detector panel including a plurality of lines, each for providing a plurality of signals, the matrix-type detector panel including a dark reference zone and an active area, the method comprising: receiving the plurality of signals from a plurality of read out amplifiers; detecting, via the signals, a plurality of dark noise contributions in the dark reference zone, each dark noise contribution related to one or more pixels in the dark reference zone on one or more of the lines of the matrix-type detector panel; and providing a first procedure and a second procedure which is different from the first procedure; for each line of the matrix-type detector panel associated with the dark reference zone; comparing the detected values of dark noise with a threshold value, calculating correcting parameters based on the comparing, the calculating is in accord to a first procedure when the comparison indicates the detected values of dark noise contributions does not exceed the threshold value, the calculating is in accord to a second procedure when the comparison indicates the detected values of dark noise contributions exceeds the threshold value, and correcting the image based on the flat-panel-detector using the correcting parameters, wherein the first calculation procedure provided for dark noise contributions not exceeding the threshold value, and wherein the second calculation procedure provided for dark noise contributions exceeding the threshold value.