Patent Document ID: 6118846
Application ID: 09255772
Patent Status: 1

Claim One:
1. In a radiation detector comprising a plurality of radiation sensing picture elements (Pixels) arrayed along rows and columns, a method for correcting inaccurate pixel values from a bad pixel column of linearly arrayed plurality of adjacent pixels for use in displaying an image of radiation sensed by the sensors, the method comprising: A) identifying said plurality of pixels forming the bad pixel column and storing the location of said pixels in a memory; B) selecting a plurality of adjacent co-extensive columns of pixels, on either side of said bad pixel column and together with the bad pixel column pixels forming an array of selected first pixel values; C) calculating a mean column value for each column of pixel values in each column of the array of selected first values; D) ignoring the bad pixel column mean value, calculate a set of base line values for each column in the array except for said bad pixel column; E) from the calculated base line values interpolating an interpolated base line value for the bad pixel column; F) calculating a distortion correction coefficient equal to the ratio of the mean pixel value in the bad pixel column and the interpolated base line value for said column; and G) applying the distortion coefficient to the bad pixel column values to derive corrected pixel values for each of the pixels in the bad pixel column.