Application Of Collision Detection And Deformable Modeling In Virtual Surgery Simulation

Collision Detection and Deformable Modeling are two of the most vital and difficultissues in Virtual Surgery Simulation. Research on application and implementationmechanism of the related technology is of greate significance to both engineeringpractice of virtual surgery simulation and relevant theoretical research.On the basis of summing up research results at home and abroad, this paper carryout an in-depth exploration on the subject of Collision Detection and DeformableModeling, and successfully applied the research results in an actual virtual surgerysimulation project. The main research contents and results are summarized as follows:1. Analyzed the system requirements of haptic virtual surgery simulation system,and designed the overall framework for the system. Specifically, the analysis of virtualsurgey pipeline, the design of system framework.2. Analyzed the collision detection process in virtual surgery simulation. On thebasis of comparisons between various types of collision detection technology, design andimplemented the collision detection module of the virtual surgery simulation system,And employed Ray-Tracing technique in Computer Graphics to apply it in collisiondetection, this solution fits some special needs in virtual surgery training system verywell, object picking up, targets scanning specifically. It also works well for fast collisiondetection in a relatively simple scene.3. In order to simulate the deforming process of soft tissue in virtual surgery, aphysics-based deformable modeling technique is employed to design and implement thedeformation calculation module, including a Mass-Spring model, a deformation pipe line,and the grouping and response of collisions etc.The overall framework, Collision-Detection module, and Deformation Calculationmodule are all integrated with other modules in an actual virtual surgery simulationproject, proved the practicability of the solution proposed in this paper.