An advanced hybrid cutting method with an improved state machine for surgical simulation.
In this work, a novel hybrid cutting method combining non-progressive cutting with progressive cutting is proposed, where progressive cutting is applied on the outer hull while non-progressive cutting is applied in the inner core. Therefore it keeps the visual reality while significantly increases the efficiency and stability for consequent soft-tissue simulation. In addition, we combined the nearest node snapping with the subdivision patterns in topology reconstruction to avoid degeneracy which is disastrous to soft-tissue simulation stability. Furthermore, an improved state-machine with shortcut transition is used to improve efficiency. The approach has been integrated into a virtual laparoscopic surgery training system.
Zhang
Jingsi
J
Med-X research institute, Shanghai Jiao Tong University, China.
Gu
Lixu
L
Li
Xiaobo
X
Fang
Min
M
D003196:Computer Graphics; D003198:Computer Simulation; D003194:Computer-Assisted Instruction / Q000379:methods*; D020342:Finite Element Analysis; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods; D021621:Imaging, Three-Dimensional / Q000379:methods; D019060:Minimally Invasive Surgical Procedures / Q000193:education* / Q000379:methods*; D008953:Models, Anatomic; D019212:Multimedia; D017695:Soft Tissue Injuries / Q000517:prevention & control; D025321:Surgery, Computer-Assisted / Q000193:education* / Q000379:methods*; D013525:Surgical Instruments; D014584:User-Computer Interface