Patent ID: 7359488

Claim:
A method for generating an x-ray image corresponding to an object, comprising: interposing the object between a detector and an x-ray source; interposing a grid between the x-ray source and the object, the grid comprising a plurality of elements defining interstices, a first area of the grid corresponding to the elements being larger than a second area of the grid corresponding to the interstices; exposing the grid to primary x-ray energy generated by the x-ray source, thereby exposing the object to a first portion of the primary x-ray energy via the interstices of the grid; receiving a second portion of the primary x-ray energy with first areas of the detector corresponding to the interstices of the grid; receiving secondary x-ray energy with the first areas of the detector and with second areas of the detector corresponding to the elements of the grid, the secondary x-ray energy resulting from interaction of the first portion of the primary x-ray energy with the object; and generating x-ray image data for the object by altering first data corresponding to the first areas of the detector with reference to second data corresponding to the second areas of the detector.