Journal ArticleDOI
Efficient Surgical Cutting with Position-Based Dynamics
TLDR
A novel method that uses position-based dynamics (PBD) for mesh-free cutting simulation and proposed solutions include a method to efficiently render force feedback while cutting, an efficient heat diffusion model to simulate electrocautery, and a novel adaptive skinning scheme based on oriented particles.Abstract:
Simulations of cuts on deformable bodies have been an active research subject for more than two decades. However, previous works based on finite element methods and mass spring meshes cannot scale to complex surgical scenarios. This article presents a novel method that uses position-based dynamics (PBD) for mesh-free cutting simulation. The proposed solutions include a method to efficiently render force feedback while cutting, an efficient heat diffusion model to simulate electrocautery, and a novel adaptive skinning scheme based on oriented particles.https://extras.computer.org/extra/mcg2017030024s1.mp4read more
Citations
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Proceedings ArticleDOI
A Physics-based Virtual Reality Simulation Framework for Neonatal Endotracheal Intubation
TL;DR: A fully interactive physics-based virtual reality (VR) simulation framework for neonatal ETI that converts the training of this medical procedure to a completely immersive virtual environment where both visual and physical realism were achieved.
Journal ArticleDOI
Position-based modeling of lesion displacement in ultrasound-guided breast biopsy.
Eleonora Tagliabue,Diego Dall'Alba,Enrico Magnabosco,Chiara Tenga,Igor Peterlik,Paolo Fiorini +5 more
TL;DR: A deformation model which relies on position-based dynamics approach to predict the displacement of internal targets induced by probe interaction during US acquisition outperforms rigid model used to track lesion position in US-guided breast biopsies, at least halving the localization error for all the displacement ranges considered.
Journal ArticleDOI
A review of virtual cutting methods and technology in deformable objects
Monan Wang,Yuzheng Ma +1 more
TL;DR: Virtual cutting of deformable objects has been a research topic for more than a decade and has been used in many areas, especially in surgery simulation.
Posted Content
Real-to-Sim Registration of Deformable Soft Tissue with Position-Based Dynamics for Surgical Robot Autonomy
TL;DR: This work proposes an online, continuous, real-to-sim registration method to bridge 3D visual perception with position-based dynamics (PBD) modeling of tissues, and achieves higher accuracy in occluded areas than fusion-based reconstruction.
Proceedings ArticleDOI
Real-time VR Simulation of Laparoscopic Cholecystectomy based on Parallel Position-based Dynamics in GPU
TL;DR: This paper presents a VR simulation framework based on position-based dynamics (PBD) for cholecystectomy, and introduces a bio-thermal conduction model to improve the realism of the fat tissue electrocautery.
References
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Journal ArticleDOI
Position based dynamics
TL;DR: This paper presents an approach which omits the velocity layer as well and immediately works on the positions of the object and uses this approach to build a real time cloth simulator which is part of a physics software library for games.
Journal ArticleDOI
Unified particle physics for real-time applications
TL;DR: It is shown how this representation is flexible enough to model gases, liquids, deformable solids, rigid bodies and cloth with two-way interactions and address some common problems with traditional particle-based methods.
Journal ArticleDOI
Position based fluids
Miles Macklin,Matthias Müller +1 more
TL;DR: This work presents an iterative density solver integrated into the Position Based Dynamics framework, which allows similar incompressibility and convergence to modern smoothed particle hydro-dynamic (SPH) solvers, but inherits the stability of the geometric, position based dynamics method.
Position Based Dynamics.
TL;DR: This paper presents an approach which omits the velocity layer as well and immediately works on the positions of the object and uses this approach to build a real time cloth simulator which is part of a physics software library for games.
Journal ArticleDOI
A Survey on Position-Based Simulation Methods in Computer Graphics
TL;DR: The concept of position‐based dynamics is introduced, dynamic simulation based on shape matching and data‐driven upsampling approaches are presented and several applications for these methods are presented.