Design and realization of an interactive medical images three dimension visualization system

In this paper, an interactive medical three-dimensional visualization system is realized based on VTK. This program is designed primarily for the CT images to realize such functions as reading and displaying of image files and interactive three-dimensional reconstruction. The threshold for three-dimensional reconstruction is interactively selected by marching squares algorithm (MS), which is more convenient and more interactive for three-dimensional reconstruction by marching cubes algorithm (MC) than the traditional method that the various reconstruction thresholds are simply entered based on experience. The functional stability and good human-computer interaction of this system greatly improve accuracy and scientificity of medical diagnosis and treatment planning. The system is designed based on modular, which is not only used as a separate visualization system for medical diagnosis, but also its functions will be further added and constantly improved aiming at the different surgical needs.