Dissertation > Excellent graduate degree dissertation topics show

Key Technologies of Modeling and Simulation in Virtual Surgery

Author: ZhangZuo
Tutor: LiJin
School: Harbin Engineering University
Course: Biomedical Engineering
Keywords: Virtual Surgery Three-dimensional Modeling Collision-Detection Cutting Simulation
CLC: TP391.41
Type: Master's thesis
Year: 2011
Downloads: 19
Quote: 0
Read: Download Dissertation


The technology of virtual-surgery is the integration of modern medicine, computer graphics and virtual reality technology as a multidisciplinary research area which play a more important role in the field of programming and treatment of surgery, the practice of surgery. navigation and wardship during the surgery time. As the diversity and physical properties of human tissues, and the high demand of virtual surgery on the realistic and immersive, the key technologies of modeling and simulation in virtual surgery have been the difficult and hot spots in this field.Three key technologies of modeling and simulation in virtual surgery:three-dimensional modeling, collision detection and cutting simulation were studied in this paper. Firstly three-dimensional modeling could be carried out from geometric modeling, physical modeling, and computational modeling three steps, several typical models of each modeling methods were respectively discussed and analyzed. Collision detection is the important factors of realistic and the immersion in virtual surgery system, the main method of collision detection is space decomposition and hierarchical bounding box. Virtual cutting was carried out based on three-dimensional modeling and collision detection, the main methods was removal method and split method.Human stomach tissue, kidney tissue and arm are three-dimensional modeled by 3DS Max software based on the real human tissues,.And the linear elastic model of these three models is analyzed by finite element method then the calculation model is given. Also the deformation results are given after making the stomach model, kidney model, the arm model in tension and compression processing respectively. Secondly, theÎș-Dops bounding box tree of the geometric model of the stomach, kidney, and arm are structured. The basic elements of the intersection test in different geometric collision case are analyzed. And the collision detection with virtual scalpel is realized. Also the update condition is analyzed after bounding box tree model deforming. Finally, the deformation and fragmentation of basic geometric element is analyzed when three-dimensional models collided with the virtual scalpel in different case and different cutting depth. Also the cutting simulation results with the virtual scalpel on the stomach, kidney and arm model is given.

Related Dissertations

  1. Analysis and Study of Abutment Stability in Concrete High Arch Dam by Three-Dimensional Nonlinear Finite Element Method,TV642.4
  2. Prototype Development of Intimate Apparel Mannequin,TS941.2
  3. Study on Model-Based Visualization of Rice Roots,S511
  4. Methods and Realization of 3D Scenes Performance of Virtual Campus,TP391.9
  5. Network system design and application of the city of Shantou three-dimensional simulation,TP311.52
  6. Research on Image Segmentation and 3D Modeling Based on Medical Image Sequence Matching,TP391.41
  7. Research on Checking and Digesting Policy Conflicts Under Multi-Policy Environments,TP393.08
  8. Direct3D-based 3D flight shooting game research,TP393.09
  9. Three-dimensional virtual Rubik's Cube game software design and implementation,TP393.09
  10. Design and Implementation of Virtual Campus Roaming System of Hebei Tourism Professional College,TP391.9
  11. OGRE -based plastics calendering 3D Simulation System Design and Implementation,TP391.9
  12. System Automation row of teeth and Implementation,R783
  13. Wheel alignment parameters visual inspection systems research and development,TP391.41
  14. Virtual surgery system based on the hybrid model of cutting simulation,TP391.41
  15. Pressure vessel parametric design studies,TP391.72
  16. Firewall policy conflict detection and visualization,TP393.08
  17. Vehicle driving simulator visual simulation technology research,TP391.9
  18. Feature-based gene sketch three-dimensional modeling method,TP391.72
  19. Research of Key Technology of Firewall Security Policy Configuration,TP393.08
  20. Modeling for the Vehicle Running Environment of Road Traffic Accident,U491

CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Information processing (information processing) > Pattern Recognition and devices > Image recognition device
© 2012 www.DissertationTopic.Net  Mobile