RESUMO
Shepp-Logan head phantom is the classical model of simulation computing in Computerized Tomography. This paper proposes a new method--considering 3D Shepp-Logan head phantom as the basic reference model to carry on simulation experiment and algorithms performance evaluating in three-dimension medical image reconstruction field. The paper introduces the design and the implementation of 3D Shepp-Logan head phantom as well the computing of projection data at first, and then describes the simulation process of the three-dimension medical image. The numerical experiment gives the three-dimension medical image reconstruction simulations based on 3D Shepp- Logan head phantom. The result of this experiment indicates the accuracy of model computing and the feasibility of our this method.