Research on three-dimensional reconstruction of the liver CT images

To get the liver image segmentation from the whole abdominal medical image lays the foundation of liver three-dimensional reconstruction system, in that a good image segmentation result really makes a big difference in the three-dimensional reconstruction. This paper focuses on the research into Graph Cuts image segmentation algorithm, especially its energy function. Improved Gaussian distribution which represents the similarity probability of the gray values between adjacent nodes is selected as the energy function in this paper to do the realization of the liver image segmentation. Then the Ray Casting algorithm was adopted to achieve the three-dimensional reconstruction image of liver. Experiments show that good results have been achieved in the segmentation and three-dimensional reconstruction for liver image.