METHOD FOR IMAGE RECONSTRUCTION IN THE HIGH ENERGY DUAL ENERGY CT SYSTEM

摘要

A method for image reconstruction in a high energy dual energy CT system includes steps of: scanning an object with high energy dual energy rays to acquire high energy dual energy projection values; calculating the projection values of base material coefficients corresponding to the high energy dual energy projection values based on a pre-created lookup table or the method for analytic solving the equations; reconstructing an image of base material coefficients distribution based on the projection values of base material coefficients.