It solves the problems, such as: beam hardening correction coefficient being provided and carries out beam hardening correction in computer tomography data.SOLUTION: it is a kind of obtain beam hardening correction coefficient carry out beam hardening correction computer tomography data include: obtain original reconstructed image target specific size and initial sinusoids figure The reduction of original reconstructed image mistake is handled, mistake is then obtained and reduces sinogram It samples and calculates average initial sinusoids figure and average error reduces sinogram Optimize original sinogram and the specific size that sinogram determines coefficient vector optimization function object is reduced according to mistake The specific size of object is obtained with the original sinogram beam hardening correction coefficient of optimization function of fitting coefficient vector.COPYRIGHT:(C) 2015, JPO& INPIT
