Patent ID: 7852980
Filing Date: 2010-12-14
Classification: A61B,H04N,Y10S

Abstract:
1. A system for performing computed tomography, the system comprising: an x-ray source configured to project an x-ray beam toward a subject, wherein the x-ray source includes an anode having a target; a sensing array configured to receive the x-ray beam through the subject, to generate an image of the target area of the anode causing a shift variant blur of the x-ray beam received by the sensing array, the sensing array having a plurality of pixels; and a controller in communication with the sensing array to control and process acquisition by the sensing array, the controller being configured to adjust for the shift variant blur of the x-ray beam, wherein the controller generates a model of the shift variant blur corresponding to a pattern of contribution of each voxel based on an angle between the target and each pixel of the sensing array.