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Cutting on triangle mesh: local model-based haptic display for dental preparation surgery simulation.
Daniel Wang1, Yuru Zhang, Yuhui Wang
1Robotics Institute, Beihang University, No. 37 Xueyuan Road, Haidian District, Beijing, PR China. hapticwang@buaa.edu.cn
IEEE Transactions on Visualization and Computer Graphics
|November 8, 2005
Summary
This study introduces a stable and realistic cutting simulation method for dental surgery using haptic devices. The new approach ensures high-fidelity simulation and device stability, advancing virtual surgical training.
Area of Science:
- Robotics and Control Systems
- Computer Simulation
- Biomedical Engineering
Background:
- Accurate material removal simulation is crucial for dental preparation surgery.
- Existing methods face challenges in balancing simulation fidelity with haptic device stability.
Purpose of the Study:
- To develop a novel method for stable and realistic cutting simulations using haptic devices.
- To address the fidelity gap between cutting and haptic contact simulations.
Main Methods:
- A piecewise contact force model was proposed to approximate the cutting process.
- A local model-based multirate simulation cutting architecture was developed.
- Force control of the haptic device was decoupled from the cutting simulation loop.
Main Results:
- The proposed method ensures high fidelity in one-dimensional cutting simulations.
- Stability in three-dimensional cutting simulations was achieved using a force-filtering method.
- Experiments validated the effectiveness of the approach on a Phantom desktop device.
Conclusions:
- The developed method enables stable and realistic cutting simulations for applications like dental surgery.
- Decoupling force control enhances both simulation accuracy and haptic device stability.
- This approach offers a promising advancement for virtual surgical training and simulation.