Visual simulation of soft tissue deformation

Simulating the behavior of elastic objects is an important research in the field of virtual reality. Visual simulation of soft tissue deformation is the core part of the surgery simulation system. However, there is not a uniform deformable model. To choose a suitable model for surgery simulation, a classification of deformation models is offered in this paper. The deformable model can divide into the non-physically model, the physically model and the hybrid model. The advantages and disadvantages of three models are discussed in detail. The comparative analyses indicate that the hybrid model is a promising approach, which can satisfy the requirements of the surgery simulation system. This research achievement is significant for completing the simulation technology of soft tissue deformation and developing the real-time surgery simulation system.